ZTF SN Ia DR2: Impact of the galaxy cluster environment on the stretch distribution of Type Ia supernovae

Context. Understanding the impact of the astrophysical environment on Type Ia supernova (SN Ia) properties is crucial to minimize systematic uncertainties in cosmological analyses based on this probe. Aims. We investigate the dependence of the SN Ia SALT2.4 light-curve stretch on the distance from their nearest galaxy cluster to study the potential effect of the intracluster medium (ICM) environment on the intrinsic properties of SN Ia. Methods. We used the largest SN Ia sample to date and cross-matched it with existing X-ray, Sunyaev–Zel’dovich, and optical cluster catalogs in order to study the relation between the stretch and the distance to the nearest detected cluster from each SN Ia. We modeled the underlying stretch distribution with a Gaussian mixture with relative amplitudes that depended on redshift and clustercentric distance. Results. We find that the fit quality of the stretch distribution improves significantly when we included the distance-dependant term in the model with a variation of the Akaike information criterion ΔAIC = −10.2. Because of the known correlation between galaxy age and distance from the cluster center, this supports previous evidence that the age of the stellar population is the underlying driver of the bimodal shape of the SN Ia stretch distribution. We further computed the evolution of the fraction of quenched galaxies as a function of distance with respect to cluster center from our best-fit model of the SNe Ia stretch distribution and compared it to previous results obtained from H α line measurements, optical broadband photometry, and simulations. We find our estimate to be compatible with these results. Conclusions. The results of this work indicate that SNe Ia searches at high redshift targeted toward clusters to maximize detection probability should be considered with caution as the stretch distribution of the detected sample would be strongly biased toward the old subpopulation of SNe Ia. Furthermore, the effect of the ICM environment on the SN Ia properties appears to be significant from the center of the clusters up to their splashback radius. This is compatible with previous works based on observations and simulations of a galaxy age gradient with respect to clustercentric distance in massive cluster halos. The next generation of large-area surveys will provide an increase of an order of magnitude in the size of SN Ia and cluster catalogs. This will enable us to analyze the impact of cluster mass on the intrinsic properties of SNe Ia and of the fraction of quenched galaxies in the outskirts of clusters in more detail, where direct measurements are challenging.

Authors

Institutions

Publication Details

Journal
Astronomy and Astrophysics
Published
2024-10-02
DOI
https://doi.org/10.1051/0004-6361/202450956
Citations
2
Primary Topic
Gamma-ray bursts and supernovae
Type
article
Field-Weighted Citation Impact
0.66

Funders

Controls
|||
ALL TIME
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
article

ZTF SN Ia DR2: Impact of the galaxy cluster environment on the stretch distribution of Type Ia supernovae

Magali Aubert, K. Maguire, J. Terwel, G. Dimitriadis et al.
2 citations
Astronomy and Astrophysics
Gamma-ray bursts and supernovae
0.66
article

ZTF SN Ia DR2: Impact of the galaxy cluster environment on the stretch distribution of Type Ia supernovae

Magali Aubert, K. Maguire, J. Terwel, G. Dimitriadis, F. Ruppin, L. Galbany, M Ginolin, M. R. Smith, J. Nordin, Y. Copin, T. E. Müller-Bravo, A. Goobar, F. Feinstein, W. D. Kenworthy, J. Sollerman, P. Rosnet, M. Rigault, D. Fouchez, Josiah Purdum, P. Nugent, Steven L. Groom, Bastien Carreres, J. Johansson, R.R Laher, B Popovic, U. Burgaz, Julie Biedermann, Roger M. Smith, B. Racine, Y.-L Kim, D. Rosselli
article en
2 citations

Abstract

Context. Understanding the impact of the astrophysical environment on Type Ia supernova (SN Ia) properties is crucial to minimize systematic uncertainties in cosmological analyses based on this probe. Aims. We investigate the dependence of the SN Ia SALT2.4 light-curve stretch on the distance from their nearest galaxy cluster to study the potential effect of the intracluster medium (ICM) environment on the intrinsic properties of SN Ia. Methods. We used the largest SN Ia sample to date and cross-matched it with existing X-ray, Sunyaev–Zel’dovich, and optical cluster catalogs in order to study the relation between the stretch and the distance to the nearest detected cluster from each SN Ia. We modeled the underlying stretch distribution with a Gaussian mixture with relative amplitudes that depended on redshift and clustercentric distance. Results. We find that the fit quality of the stretch distribution improves significantly when we included the distance-dependant term in the model with a variation of the Akaike information criterion ΔAIC = −10.2. Because of the known correlation between galaxy age and distance from the cluster center, this supports previous evidence that the age of the stellar population is the underlying driver of the bimodal shape of the SN Ia stretch distribution. We further computed the evolution of the fraction of quenched galaxies as a function of distance with respect to cluster center from our best-fit model of the SNe Ia stretch distribution and compared it to previous results obtained from H α line measurements, optical broadband photometry, and simulations. We find our estimate to be compatible with these results. Conclusions. The results of this work indicate that SNe Ia searches at high redshift targeted toward clusters to maximize detection probability should be considered with caution as the stretch distribution of the detected sample would be strongly biased toward the old subpopulation of SNe Ia. Furthermore, the effect of the ICM environment on the SN Ia properties appears to be significant from the center of the clusters up to their splashback radius. This is compatible with previous works based on observations and simulations of a galaxy age gradient with respect to clustercentric distance in massive cluster halos. The next generation of large-area surveys will provide an increase of an order of magnitude in the size of SN Ia and cluster catalogs. This will enable us to analyze the impact of cluster mass on the intrinsic properties of SNe Ia and of the fraction of quenched galaxies in the outskirts of clusters in more detail, where direct measurements are challenging.

Astronomy and AstrophysicsVol. 694
Université Claude Bernard Lyon 1 (FR), California Institute of Technology (US), Centre National de la Recherche Scientifique (FR), Institute of Space Sciences (ES), Lawrence Berkeley National Laboratory (US), Duke University (US), Université Clermont Auvergne (FR), Trinity College Dublin (IE), Aix-Marseille Université (FR), Humboldt-Universität zu Berlin (DE), Institut d'Estudis Espacials de Catalunya (ES), Centre de physique des particules de Marseille (FR), Nordic Optical Telescope (ES), AlbaNova (SE), Fraunhofer Chalmers Research Centre for Industrial Mathematics (SE), Institute of Nuclear Physics of Lyon (FR), Infrared Processing and Analysis Center (US), Institut de Physique des 2 Infinis de Lyon (FR), Lancaster University (GB), University of California, Berkeley (US)
National Science Foundation, California Institute of Technology, Northwestern University, University of Washington, University of Warwick, European Commission, Trinity College Dublin, Weizmann Institute of Science, Ministerio de Ciencia e Innovación, Stockholms Universitet, Science and Technology Facilities Council, Deutsches Elektronen-Synchrotron, Agencia Estatal de Investigación, Institut National de Physique Nucléaire et de Physique des Particules
Openalex Percentile: Top 29%
Gamma-ray bursts and supernovae
0.66
DOIOpen Access PDFOpenAlex
AI Navigator

Ask Laika to Summarize, Analyze, and Connect papers live on the map.

Summarize Papers & Methodologies

Extract key findings, datasets, and comparative methods across publications.

Benchmark Rankings & Visual Analytics

Rank top research institutions, authors, funders, topics, and journals by Field-Weighted Citation Impact (FWCI) and paper volume with instant charts.

Connect Distant Disciplines

Bridge topological clusters on the map to find hidden collaborative intersections.