Science projects
Listed here are AMUSING projects. We list projects using SV data, AMUSING data, HK data, DDT data (the data source is reflected in the project ID). A project PI is listed, together with a title, an abstract and the status of the project. Projects should only be listed here once they have been approved by the AMUSING collaboration PIs (Anderson and Galbany).
Project SV1
Title: Census of H II regions in NGC 6754 derived with MUSE: Constraints on the metal mixing scale
PI: S. Sánchez
Data usage: SV
Status: Published
Project SV2
Title: Characterizing the environments of supernovae with MUSE
PI: L. Galbany
Data usage: SV
Status: Published
Project SV3
Title: Evidence of Ongoing Radial Migration in NGC 6754: Azimuthal Variations of the Gas Properties
PI: L. Sánchez-Menguiano
Data usage: SV
Status: Published
Project AM1
Title: Data release of P95+P96+P97+P98
PI: J. Anderson
Abstract: Release of data cubes (of our own reduction…), with characterisation of galaxy/SN properties. Overall properties of sample in terms of redshift, galaxy types, galaxy properties etc.
Data usage: First 4 semesters
Status (12/12/16): Very little. Tomás has done characterisation in .csv table and can use that. Discussion on whether to write a messenger article?
Status (05/04/17): Still little progress, but we really need to get something done here. JA to try to make higher priority.
Status (05/09/17): Draft started. Aim to send draft to collaboration before end of 2017.
Status (13/11/18): Data tables from Sebastián received, and plots ongoing. New goal is to have plots for January’s workshop in Pittsburgh.
Status (21/01/19): Joe working on tables… Survey draft in 3-4 months?
Status (13/08/19): Lluís working on the characterization and quality control.
Status (20/12/20): At the very end of the flux calibration. Writing.
Project AM2
Title: Environments w.r.t. SNIa properties
PI: J. Anderson -> L. Galbany
Abstract: Environment analyses of well-observed SNeIa from CSP. Main aim will be to search for and characterise correlations between SN parameters (dm15, colour, velocities etc) and environment properties such as age, Z, extinction. Similar to many previous studies in this area, however will bring new insights by using ‘spaxel/HII region statistics’ as demonstrated in Galbany+16. Hubble residual analyses will be part of the same study
Data usage: All semesters
Status (12/12/16): None. If someone else wishes to take over then no problem!
Status (05/04/17): Still none.
Status (05/09/17): Lluís now taken over. He will add the AMUSING SNIa sample to those observed with PMAS and MaNGA. Aim to have draft around June 2018.
Status (13/11/18): PMAS paper should be finished before the AMUSING paper. AMUSING local analysis is done, but we need masks for the total values. Sebas will provide them. Also we need to test Alessandro’ fitting routines with photometry.
Status (21/09/19): Project for 2020.
Status (20/12/20): Most of the analysis done. Waiting to finish the data release to focus on this. Must be finished by Sep 2021.
Project AM3
Title: Exploring the SNe environments and related issues through their narrow absorption lines
PI: L. Wang -> Santiago / Lisbon Postdoc.
Abstract: As SN sample sizes increase, SN host extinction dominates the systematic error when using them as distance indicators for cosmology. Here we will construct complete SN host extinction maps based on 3D (x, y, λ) IFU data cubes by means of mapping narrow ISM absorption lines (Na I, K I, Ca II H&K, DIB5780) and HII region emission lines (Balmer decrement). We will compare and test various empirical reddening relations between the spectral lines and color excess EB−V . From the multiple dust extinction indicators obtained with IFU cubes, the dust properties of the overall spatially resolved host together with that at the specific SN site will be constrained. Therefore, the degeneracy of SN color excess from its intrinsic color and dust extinction will likely be broken and finally the nature of SN intrinsic color will be constrained. The extinction map will shed light on the systematic errors of the distance measurements for Type Ia and Type II SNe. A direct comparison of sodium excess and blueshifted narrow absorption Na I doublets, both present in the galaxies and SN spectra, will allow us to understand the nature of galactic winds and pre-SN outflows. The CSM or ISM origin problem to the Na excess of Type Ia SNe will hopefully be solved by mapping the blueshifted Na I features of SN host galaxies and the SN positions on BPT diagram, hence possibly providing tight constraints to their progenitor systems. Meanwhile, the DIB5780, etc may be applied to explore the origin of the diffuse interstellar bands.
Data usage: All semesters, but specifically P97
Status (06/09/17): No updates.
Status (21/01/19): Nothing still from Lingzhi. Discuss with Santiago on how to move forward.
Status (20/12/20): Claudia taking over. Lots of interesting stuff going on.
Project AM4
Title: Extinction laws towards supernova host galaxies with integral field spectroscopy
PI: A. Razza
Abstract: Along the last 30 years it has grown evidence of the presence of an oxygen abundance gradient in spiral galaxies that has been interpreted as an evidence of inside-out growth. More recently it has been proposed the presence of a common abundance gradient and central decrement correlated with the mass of galaxies, by the use of IFU surveys. However, its characterization is hampered by the coarse resolution of those surveys (CALIFA, PINGS, MaNGA…), thus we would like to explore it by the analysis of the HII regions within the AMUSING dataset.
Data usage: All semesters, especially those data with Av/Rv calculations from the SNe(Ia)
Status (06/09/17): Alessandro recently arrived at ESO to start his thesis project which will be working on this project. Significant progress expected in the coming months.
Status: List of relevant papers
Status (01/06/20): Alessandro now in Granada making progress.
Project AM5
Title: Search for long-lived SN Halpha emission
PI: J. Lyman, L. Galbany, H. Kuncarayakti, C. Badenes, P. James
Abstract: The SV data for MUSE had observations of SN 2005ip almost 10 years after the SN exploded. The SN is the brightest object in the galaxy in Halpha (excluding the galaxy centre). It displays strong, broad emission and other SNe have also been seen to show Halpha emission on a timescale of years. We propose a search of all galaxies in AMUSING to look for evidence of long-lived broad Halpha emission at any location in order to search for missed SNe displaying this behaviour (this can be broadened to all public MUSE data of nearby galaxies or parts of galaxies). We will fit emission lines to the continuum-subtracted data to find regions that are not well fit by narrower lines (~100 km/s) typical of HII regions to search for candidate broad emission regions. Any detections will be subject to proposals to follow up their evolution. We will place rates (or rate limits for no detections) on these types of events.
Data usage: All semesters
Status (10/09/17): Machinery is in place, now waiting for data…
Status (21/01/19): Hector working now
Status (20/12/20): Héctor left astronomy in Sep 2019. He has been working slowly but constantly, and first draft is almost ready.
Project AM6
Title: On the diffuse gas in spiral galaxies using MUSE IFS data
PI: F. F. Rosales-Ortega
Abstract: The goal is to try to quantify the fraction of diffuse gas with respect to the total Halpha emission in a given galaxy. Previous attempts to do so were based either on narrow band imaging (which lack the full spectroscopic information) or using spectroscopic methods in small field-of-views and/or with low spatial resolution. Given the superb characteristics of the AMUSING observations in terms of coverage, spatial and spectral resolution, we can attempt to sample a good range of the HII region luminosity function, and potentially, to try to quantify the escape fraction of ionizing radiation in sample of local star forming galaxies. This have important connotations for higher redshift objects, as we could quantify how much of the Halpha emission in a galaxy is actually related to star formation, and which fraction should not be considered for determinations of SFR when the galaxies cannot be spatially resolved.
Data usage: All semesters
Status (11/09/17): now has a PhD student who may work on this, trying to have a draft by mid-2018.
Status (30/10/18): Data for all semesters has been sent to Fabián.
Status (01/09/20): Raul González, PhD student at INAOE supervised by Fabián and Lluís, taking over.
Project AM7
Title: BaTMAn: A coherent segmentation map code
PI: Javier Casado
Abstract: BaTMAn: Bayesian Technique for Multi-image Analysis is a binning algorithm specially devoted to simultaneously tessellate several layers of an IFS datacube (several line maps, velocity maps, wavelengths, etc). The purpose of applying the algorithm to MUSE data is to test its robustness and power. Its spatial properties, a 300x300 spaxels grid in a 1’ FoV, make MUSE the perfect test bench for BatMAn, as it is probably the dataset that can benefit the most from it. We will compare the performance of the binning tool with other methods typically used in IFS analysis, such as Voronoi binning techniques or the imposition of signal-to-noise thresholds.
Data usage: All semesters
Status (12/12/16):
Status (21/01/19): Where is Javier? Yago?
Status (20/12/20): LG: I think this is dead.
Project AM8
Title: Oxygen abundance gradients + central decrement
PI: L. Sánchez-Menguiano
Abstract: Along the last 30 years it has grown evidence of the presence of an oxygen abundance gradient in spiral galaxies that has been interpreted as an evidence of inside-out growth. More recently it has been proposed the presence of a common abundance gradient and central decrement correlated with the mass of galaxies, by the use of IFU surveys. However, its characterization is hampered by the coarse resolution of those surveys (CALIFA, PINGS, MaNGA…), thus we would like to explore it by the analysis of the HII regions within the AMUSING dataset.
Data usage: All semesters
Status: Published
Project AM9
Title: The global and local MZ relation explored with MUSE
PI: L. Sánchez-Menguiano
Abstract: We would like to explore the well known M-z relation proposed by Tremonti et al. (2004) using the extensive catalog of HII regions, extracted with unique resolution, in order to understand if part of the dispersion described in the literature is due to contamination due to diffuse gas, which is clearly addressed by the super-resolution of MUSE datasets. Evenmore, we propose to characterize the Sigma-z relation (or local M-z relation), proposed by Rosales-Ortega et al. 2012, and the possible secondary relation with the SFR.
Data usage: All semesters
Status (12/12/16):
Status (20/12/20): ask Sebastian?
Project AM10
Title: Azimutal variations of stellar properties
PI: T. Ruiz-Lara
Abstract: We propose to explore the azimutal variations of the stellar properties in disk galaxies making use of the super-resolution provided by AMUSING in order to determine the effect of secular processes (bars, arms…) on the evolution of galaxies.
Data usage: All semesters
Status (12/12/16):
Status (20/12/20): ask Sebastian?
Project AM11
Title: Sulphur electron temperatures
PI: R. García-Benito
Abstract: Thanks to the MUSE wavelength coverage, [SIII] electron temperatures are available from [SIII] 6312A and [SIII] 9069A and [9532]A lines. We plan to produce high quality continuous electron temperature maps of [SIII] along ionic abundances of the AMUSING galaxies that meet the S/N requirements and investigate the possible spatial temperature variations. Since there is a known empirical relation between [SIII] and [OIII] temperatures, other programs investigating oxygen abundances can benefit from this project.
Data usage: All semesters
Status (06/09/17): No significant progress. Will try to push things soon.
Status (21/01/19): Patricia is interested. We will contact Rubén.
Status (20/12/20): No news.
Project AM12
Title: Unveiling the sources of disk heating in spiral galaxies
PI: F. Pinna, J. Falcon-Barroso, M. Martig, G. van de Ven, M. Lyubenova, R. Leaman
Abstract: The stellar velocity ellipsoid (SVE) quantifies the amount of velocity dispersion in the vertical, radial and azimuthal directions. Since different disk heating mechanisms (e.g. spiral arms, giant molecular clouds, minor mergers, etc) affect these components differently, the SVE can constrain the sources of heating in disk galaxies. At present the 3D nature of the SVE can only be directly measured in the Milky Way but, thanks to integral-field surveys we are now in position to carry out the same kind of analysis in external galaxies. For this purpose, we will gather a sample of intermediate inclined spiral galaxies along the Hubble sequence (Sa to Sd types) with high quality stellar kinematic maps in the AMUSING survey. This will allow us to probe the SVE for each galaxy from different line-of-sights in different regions, and thus provide strong constraints on its shape. The ultimate goal is to relate our findings to realistic numerical simulations of disks with different formation histories (quiescent vs mergers), and we will also put the results of the Milky Way in context with the general population of spiral galaxies.
Data usage: All semesters
Status: (06/09/17) Data not deemed good enough for this project. ### Project put on hold for now.
Project AM13
Title: Emission line associated with a AGN driven jet in NGC232
PI: C. Cobá
Abstract: We describe the serendipity discovery of an optical jet driven by a central AGN in the galaxy NGC232, that extend across several kpc almost perpendicular to the galactic plany of the galaxy. The analysis of the gas kinematics and emission line ratios indicate that most probably the optical jet is ionized by a mixture of direct ionization by the AGN and shocks due to the lateral expansion of the jet across a dense medium. To our knowledge only two of these optical jets have been observed before (3C120 and 3C273), what place this object among one of the few laboratories to study this kind of processes.
Data usage: P95
Status: Published
Project AM14
Title: Unsupervised classification of spectra
PI: F. Förster. S. González-Gaitán
Abstract: this is a two week project for the astroinformatics course. The idea is to extract spectra from the galaxy and try different unsupervised methods, either from the entire frequency range or from particular features which the students must design (based on e.g. https://arxiv.org/pdf/1207.3928v1.pdf). A similar project, for educational purposes, will be done in January as part of the Harvard Chile school on data science http://www.hcds.cl, using a larger dataset.
Data usage: All semesters
Status (06/09/17): Data was used in summer school, not clear if any further analysis?
Status (20/11/20): Santiago ressurrected it with CRISP.
Project AM15
Title: MUSE Reveals a Recent Merger in the Post-starburst Host Galaxy of the TDE ASASSN-14li
PI: J. L. Prieto
Data usage: P96
Status: Published
Project AM16
Title: ASASSN-14jb (SN II) host and SN properties
PI: N. Meza
Data usage: P96
Status: Published
Project DDT1
Title: The lowest metallicity type II supernova from a high mass red-supergiant progenitor
PI: J. Anderson
Abstract: Red supergiant (RSG) stars have been confirmed as the progenitor stars of the majority of hydrogen-rich type II supernovae (SNe II). However, while RSGs are observed with masses >25 M⊙, detections of SN II progenitors with masses >18 M⊙ (To be defined) have remained elusive. RSGs are also expected to form and explode at all metallicities, but given the his-torical galaxy-targeted nature of past SN surveys, in addition to the low amount of total star-formation within low-luminosity galaxies (leading to a low SN rate), discoveries of explosions from such low-metallicity progenitors are also scarce. Here, we report observations of the SN II CSS140925:223344-062208, aka SN 2015bs, for which we infer a progenitor metallicity of Z0.1 Z⊙ and a Zero Age Main-Sequence (ZAMS) mass of 17-18 M⊙. SN 2015bs displays a relatively normal light-curve morphology, together with the typical Balmer lines usually observed in photospheric-phase spectra of SNe II, implying a RSG progenitor. However, there is a clear lack of strong spectral lines originating from heavier elements such as iron. Comparison to spectral models confirm a progenitor metallicity of 0.1 Z⊙ or lower. This is consistent with observations of the host galaxy that constrain its absolute magnitude to be the lowest of any SN II host to-date, implying significantly sub-solar metallicity. At 2late phases SN 2015bs also shows unique features among SNe II. [OI] 6300,6364 °A is much stronger with respect to H and [Ca II] 7291,7323 °A than for all other known SNe II. Nebular hydrogen emission is also broader implying higher velocities for the outer core material4. SN 2015bs is thus constrained to have a helium core mass produced by the explosion of an 17-18 M⊙ (To be defined) initial mass progenitor (Actually, putting a value here is necessary? Probably, but note Jesper’s ’strong logic’ point.). Why such a massive progenitor should also be related to such a low progenitor metallicity is currently unknown.
Data usage: DDT96
Status: Published
Project HK1
Title: Hot gas around SN~1998bw - the progenitor from its environment
PI: T. Kruehler
Data usage: HK
Status: Published
Project AM17 -> AM2
Title: SweetSpot NIR SNIa LC/HR correlations with host galaxy properties
PI: L. Galbany
Abstract: We will study SweetSpot SN Ia NIR Hubble residual correlations with both global and local host galaxy properties. In P98 we got 28 SwSp galaxies and some more are planned for P99. It will be complemented with other IFS observations from PMAS, Hexpak, and hopefully KOALA. I will start working on this after all observations are performed (Oct 17), reduced (~Jan 18) and analized (~Feb 18).
Data usage: P98 and P99
Status (06/09/17): Building sample from other sources (PMAS, HexPaK, KOALA). Adding some southern targets for P101.
Status (15/02/18): Kind of joined with Project AM2.
Status (21/01/19): will not longer happen. Integrated with AM2.
Project AM18
Title: SN Ia and CCSN delay time distribution (DTD) measurement
PI: L. Galbany
Abstract: Once the SFH of all spectra are determined, one can apply the Maoz & Badenes MC method to infer the DTD of different SN types. We expect to use 3-4 age bins and focus on the detection of signal in the 40-100 Myr bin for CCSNe (binary progenitors), and the 100-300 Myr for SNe Ia (turn-on).
Data usage: All semesters
Status (06/09/17): Applying for funding to perform the study.
Status (21/01/19): Carles + Lluis working on this. Needs to wait for photometry (waiting for Alessandro).
Project AM19
Title: young/old supernova remnants detection
PI: L. Galbany, Hector Mártinez-Rodríguez
Abstract: Ejecta-dominated SNR show broad emissions from H and O in their spectra. ISM-dominated SNR present higher SII/Ha ratios than HII regions. The idea is to look for these two families in all AMUSING datacubes. I found a method to discover broad emission that successfully found all known SN in nebular phases in our data. Hopefully we will find some new detections, but if not, I would like to present the method and write a short paper on ‘Unexpected objects in IFS data’.
Data usage: All semesters
Status (06/09/17): Analysis ready, waiting for a student to work on this.
Status (20/02/18): Héctor Martinez taking over + Joe L. Join with JL paper above.
Status (13/08/19): Héctor finished the analysis.
Status (17/08/21): Draft almost finished. Héctor left astronomy…
Project AM20
Title: The Origins of Galaxy Bimodality: Quenching Mechanisms over the last 8 Gyrs
PI: J. Méndez-Abreu
Abstract: This project is about understanding these quenching processes that are responsible for changing galaxies from the disky/irregular balls of gas observed at high redshift, into the bimodal population of star-forming spirals and quiescent ellipticals seen around us today. Particular attention will be paid to understand the effect of environment (field vs. clusters) in galaxy quenching. The main objective is to understand galaxy evolution by revealing why some galaxies are still forming stars, while others are red and dead. To this aim, the student will use data from the state-of-the-art Integral Field Spectroscopic surveys (AMUSING). New tools based on Bayesian analysis will be handled and developed to analyse the data in an unprecedented way, separating different galaxy components (bulges and disks) in the datacubes using a novel spectrophotometric approach and shedding new light on the quenching processes driving galaxy evolution.
Data usage: All semesters
Status (06/09/17): Jairo is looking for students this autumn. If no students he will start working on the data himself.
Status (20/12/20): No news
Project AM21
Title: The star formation history of the perturbed Virgo cluster galaxy NGC 4424
PI: Matteo Fossati, Alessandro Boselli
Abstract: NGC 4424 is a peculiar star forming galaxy located in the Virgo cluster. Deep narrow band Halpha images indicate the presence of a nuclear starburst, with extraplanar low surface brightness tails of ionised gas. The lack of star forming regions in the outer disc and the presence of prominent Balmer absorption lines indicate that here the star formation activity has been abruptly quenched. We propose to combine 2D spectroscopic data from MUSE with multifrequency data covering the whole electromagnetic spectrum to study the star formation history of this peculiar galaxy. The spectro-photometric data will be compared to tuned models of galaxy evolution in rich environments and will be fitted with SED fitting codes to reconstruct the star formation history of NGC 4424 with the purpose to identify the physical mechanism responsible for the quenching of its star formation activity.
Data usage: All semesters
Status: 1st paper Published
Status: 2nd paper Published
Status: 3rd paper Published
Project AM22
Title: On the interaction between nuclear star formation and AGN in nearby galaxies
PI: René Ortega Minakata, Marcel Chow, Aitor Robleto, Josué Trejo
Abstract: The main goal would be to contribute to the understanding of the interaction between AGN and nuclear star formation in the context of galaxy evolution. Particularly, the goal would be to separate spectrally and spatially the contribution of the AGN from the contribution of stars, particularly young stars, in the central / nuclear regions of nearby AGN-host galaxies. A secondary goal would be to test the methods to derive the gas-phase metallicity in AGN-dominated regions (e.g. Dors et al.) and compare them to standard strong-line methods for HII regions. The methods to achieve these goals would be to map the dynamics of the ionized gas and stars of the central regions of these galaxies; also, to map the gas diagnostics with great detail in these regions, in order to disentangle between regions dominated by the influence of the AGN and regions where young stellar populations ionize the gas. The main technique to be applied is spectral fitting using Starlight, but we intend to also use other fitting techniques, mainly to test for type-1 AGN in the central-most regions of these galaxies. The expected results include maps of dynamics, ionized-gas diagnostics, stellar populations and gas metallicity of the central regions of these galaxies. Based on previous studies in the literature, we expect to find co-existence of both young-stellar populations within or close-by an AGN-influenced region, and we expect to better understand where this AGN-influenced region ends. We expect to submit two or three papers in the course of three years from this project. The maximum amount of money that we could get is 1.5M pesos to be spent in a total of three years, which is about 70k USD at current exchange rates. It’s not much but it’s enough to hire one postdoc, pay for the publications and a few international conferences, buy a couple of laptops, and maybe bring one of you guys to Mexico for a week or so. We have access to enough CPU power to run spectral fitting with starlight of about five previously-reduced MUSE datacubes per semester at median capacity. We found a list of observed galaxies from AMUSING in google and found six AGN-hosts in that list, so we conclude our project is feasible in the three-year period with our current capacity. We have also made sure that the technical specifications of MUSE make its data capable of and useful to execute our project. The group proposing this project includes a professor (to be confirmed), a reasearch-oriented postdoc (me), a teaching-oriented postdoc, an almost PhD graduate that is already working as a professor outside of Mexico, and a soon-to-be PhD student whose thesis project is partially related to this project. We plan to hire another post-doc if we get the mexican money, to be fully dedicated to this project. All members of this group have experience analyzing CALIFA and SAMI data with the same methods and technique proposed here, and some are currently experimenting with MaNGA data. We have also developed our own suite of spectral fitting and analysis routines based on Starlight, dubbed The GIFU suite, so we consider we have enough experience to carry out this project successfully.
Data usage: All semesters
Status (20/12/20): First paper Published
Project AM23
Title: SN nebular spectroscopy
PI: H. Kuncarayakti
Abstract: Primarily for SESN analysis. SN II are included in P100. Thinking of getting nebular spectra of long-lasting IIn, and also Ia for the future.
Data usage: P100+
Status (06/09/17): Waiting for data.
Status (21/01/19): Data obtained. Analysis ongoing?
Status (20/12/20): No news
Project AM24
Title: Simulating the host galaxies of quasars as seen by HARMONI
PI: A. Monreal-Ibero
Abstract: In the frame of the preparatory work for science with HARMONI, we are simulating different scientific cases to evaluate the performance of the instrument. For that, we make use of existing high-quality IFS data of nearby galaxies, that later on will be manipulated to mimic possible observations with HARMONI. MUSE data taken by the AMUSING project are ideal for this aim. Specifically, here we apply for the possibility of using the reduced cubes of the ellipticals (or early-type) galaxies to simulate the host galaxy of a quasar at different redshifts (up to z~2).
Data usage: NGC809 (may request additional cubes in the future)
Status (10/01/22): Published
Project AM25
Title: AGN feedback in AMUSING galaxies
PI: Y. Ascasibar
Abstract: The aim of this project is to study the presence of AGN in the AMUSING sample and investigate its relation with the star formation activity of the galaxies. The first step will be to classify the sample, based on optical emission-line ratios as well as on X-ray emission (from the literature and archival observations). Then, we will compare the star formation histories inferred from stellar population synthesis models (Pipe3D) for galaxies with different mass, morphology, and nuclear activity, investigating both the galaxy as a whole as well as the central regions. Our preliminary results, based on the CALIFA sample, suggest that optically-selected AGN do not play a significant role on global scales, but it is possible that they do in the central regions. Finally, we would like to explore a possible connection between AGN and winds/outflows on kpc scales. Here, the spatial and spectral resolution of MUSE are critical in order to achieve conclusive results.
Data usage: All galaxies with AGN
Status (10/09/17): A bachelor thesis was written on this subject. Therefore, data/analysis/results are available, but needs someone to write up.
Status (30/10/18): Sara already has a draft.
Status (21/01/19): working on draft.
Status (20/12/20): I have seen the draft and it is done. All plots need to be repeated with the very final tables from Sebastián. Do not know where Sara is located and how much time has to invest on finishing this.
Project AM26
Title: Wolf-Rayet population in NGC 3451
PI: L. Galbany, A. R. López-Sánchez, Carolina Kherig
Data usage: SN1997dn host (from HK P95)
Status (06/09/17): SDSS, PMAS, and MUSE data ready. No significant advances.
Status (01/12/17): Data anlayzed. Plan to work 100% on this during my visit to Angel in May.
Status (21/01/19): work starting on this sometime 2019? Not anytime soon?
Status (21/09/01): Carolina Kherig from IAA helping. Hopefully something ready for early 2020.
Status (20/12/20): I made some progress on 2020, but this is put now on hold for lack of time. Actually I did the detection of Wolf-Rayet bumps in all AMUSING cubes. Finding time to write it.
Project AM27
Title: Spatial resolution effects in Nearby Galaxies: An AMUSING-MaNGA synergy
PI: J. K. Barrera-Ballesteros
Abstract: The scaling relations observed in nearby galaxies such as the well-known Kennicutt-Schmidt Law that relates the star formation rate and the gas density appears to differs for at sub-kpc scales (e.g., Bigiel et al 2008). Thanks to the partial overlapping between the two IFU field of view of the AMUSING and the MaNGA surveys in the spiral galaxy NGC6962 we are able to probe the impact of the observed properties at different spatial scales.By comparing the two datasets, we are able to probe the spatially resolved relations such as the Sigma___-Z or the SFMS relations, as well as radial gradients of the properties.
Data usage: SN2002ha (NGC6962 from P97)
Status (10/09/17): are waiting for MANGA data to become public to enable project to start.
Status (21/01/19): ??? ask Sebastian?
Status (20/12/20): No news
Project AM28
Title: Serendipitous discovery of a lensed galaxy in IFS data
PI: L. Galbany, S. F. Sánchez, J. P. Anderson, J. Méndez-Abreu, M. Wood-Vasey, R. Mandelbaum
Abstract: We present the discovery of a lensed galaxy observed with MUSE IFS. Besides the source, the lens seems to be in front of two clusters at different redshifts.
Status: Published
Project AM29
PI: J. L. Prieto (w B. Shapee and Michael)
Title: nebular SNIa spectra in AMUSING
Abstract: put constraints on H content and SN Ia progenitors
Data: Mostly P99
Status: Published
Project AM30
PI: T. Collett
Title: MUSE + HST galaxy lenses
Abstract: we have a sample of 3 low redshift MUSE lenses with HST imaging. We’re working on mass to light ratios, dark matter profiles, IMF etc. This lens would make an excellent addition to the sample and we’d like to put in a mid-cycle HST proposal for it.
Data: LSQ13cwp cube
Status (20/02/18):
Status (21/01/19): ask Thomas.
Status (20/12/20): I would say this is not going to happen.
Project AM31
PI: Mark Phillips, N. Morrell, C. Contreras, L. Galbany
Title: SNIa in low luminosity galaxies
Abstract: low luminosity star-forming galaxies of CSP-II SNe Ia, which preferentially host luminous slow-declining (91T-like)
Data: iPTF14fpg, CSP13aaq, CSP14aar, CSP14aar, CSP12N, LSQ14ie, LSQ14bjj, LSQ15aja
Status (20/07/18): Defining sample.
Status (30/10/18): Analysis done.
Status (21/01/19): Mark writing now? Check?
Status (20/12/20): Mark still working on this.
Project AM32
PI: Isaac Lozano, Lluís Galbany
Title: SNII environment vs SNII LC parameters
Data: 20 SNII hosts
Status (12/11/18): Defining sample.
Status (21/01/19): Masters student. Add 60 SNe/AMUSING hosts etc.
Status (21/08/19): Isaac writing the master thesis. Defense is in September.
Status (11/12/19): Defense done. Master thesis done. Not sure if this will end up in a paper. It needs a bit more work.
Project AM33
PI: Claudia Gutiérrez
Title: SN2017ivv
Data: 1 host
Status: Published
Project AM34
PI: Asier, Yago Ascasibar, L. Galbany
Title: SN rate statistics in nearby galaxies from IFS
Data: ~50 hosts
Status: Published
Project SV4
PI: E. Bellochi, Y. Ascasibar, L. Galbany
Title: SN rate statistics in nearby galaxies from IFS
Data: NGC2906
Status: Published
Project AM35
PI: Lluís Galbany, Joe Anderson
Title: SN2002fw SNIa at z=1.3 with ultra-deep field MUSE data.
Status: MOU signed with MUSE GTO people
Status (11/12/19): They sent us a cutout of the cube. Not very useful.
Status (20/12/20): Still waiting for the final cube.
Project AM36
Title: SN2018cow host
PI: Joe Lyman
Status: Published
Project AM37
Title: SHOES host galaxy studies
PI: Mario, Lluís, Santi
Abstract: The goal is to get all 19 hosts, with AMUSING those in the South and with PISCO those in the North, and perform 3 different studies: local SFR at SNIa positions (LG), local metallicity at Cepheids positions (MH), local extinction at Cefeids positions (SGG).
Status (11/12/19): 9 hosts available. Some are in PISCO for 20A, and some others in AMUSIG for P105.
Status (20/12/20): Sara Muñoz, Master student, currently doing the analysis.
Project AM38
Title: GRBs HII regions etc
PI: Patricia Schady
Status (20/12/20): No news
Project AM39
Title: Dust creation/destruction at SN sites
PI: C. Angus, C. Gall.
Abstract: SNe are thought to destroy circumstellar and interstellar dust, either due to their intense radiation shortly after explosion or on longer timescales, due to forward (and reverse) shocks that sweep up any surrounding material. Dust grains may be fully destroyed (e.g., vaporised), or shattered into smaller grains if existing grains have been sufficiently large. In both cases, dust forming elements such as carbon, oxygen, calcium, iron or magnesium are returned to the gaseous phase. Therefore observable signatures of dust destruction close to the SN location may include changes in the local extinction (or extinction law) relative to the surrounding regions, as well as a local enhancement of dust forming elements at the SN location (or conversely a decrease in the case of dust creation). Here we will attempt to map these changes, and hence investigate the effect of dust destruction for different SNe and environments.
Status (17/12/20): Start
Project AM40
Title: ASASSN-15hy and SCh SNIa
PI: L. Jing, E. Hsiao.
Abstract: ASASSN-15hy shares many of the hallmark characteristics of 03fg-like SNe Ia. It is relatively bright, lacks a clear i-band secondary maximum, and shows a strong and persistent CII feature and a low SiII 6355A velocity. However, some of its properties are also extreme compared to others in the 03fg-like group. ASASSN-15hy is under-luminous (MB = –19.14 ± 0.16 mag at B-band maximum), red (B −V = 0.18 ± 0.01 mag at B-band maximum), yet slowly declining (∆m15(B)= 0.73 ± 0.03 mag). It has the most delayed onset of the i-band primary maximum of any 03fg-like observed. ASASSN-15hy is extremely luminous in the NIR (MH ≤ —19.39 mag), and in contrast with normal SNe Ia, it also lacks the prominent H-band break emission feature at +10 d. The observational properties of ASASSN-15hy may be explained in the context of an explosion of a degenerate core inside a non-degenerate envelope. In such a configuration, the kinetic energy produced in the explosion runs into the non-degenerate envelope that provides additional luminosity and slow ejecta velocities. An initial deflagration burning phase is critical in producing the low 56Ni mass and luminosity, while the large core and envelope masses are essential in providing the large diffusion time scales required to produce the broad light curves. The model that best match the observations consists of a 1.47M degenerate core and a 0.8M non-degenerate envelope. This “deflagration core-degenerate” scenario (DCD) may result from the secular merger between a white dwarf and the degenerate core of an AGB star.
Data: ASASSN-15hy
Status: Published
Project AM41
Title: SNIa rates
PI: T. Holoien.
Abstract: ASASSN SN Ia rates as a function of host galaxy properties. AMUSING contributing with 7 low-luminosity ASASSN hosts.
Data: 7 cubes
Status (16/08/21): Data sent
Project AM42
Title: SNIIn properties connected to environments
PI: T. Moriya, L. Galbany.
Abstract: Measuring explosion parameters from SNIIn light-curves and looking for correlations to their local environments in 23 AMUSING and PISCO galaxies.
Data: 23 cubes
Status (10/07/22): Visit to NAOJ to work on this