Abstract
Context. Type Ia supernovae (SNe Ia) are useful distance indicators in cosmology, provided their luminosity is standardized by applying empirical corrections based on light-curve properties. One factor behind these corrections is dust extinction, which is accounted for in the color-luminosity relation of the standardization. This relation is usually assumed to be universal, which can potentially introduce systematics into the standardization. The “mass step” observed for SN Ia Hubble residuals has been suggested as one such systematic. Aims. We seek to obtain a more complete view of dust attenuation properties for a sample of 162 SN Ia host galaxies and to probe their link to the mass step. Methods. We inferred attenuation laws toward hosts from both global and local (4 kpc) Dark Energy Survey photometry and composite stellar population model fits. Results.We recovered a relation between the optical depth and the attenuation slope, best explained by differing star-to-dust geometry for different galaxy orientations, which is significantly different from the optical depth and extinction slope relation observed directly for SNe. We obtain a large variation of attenuation slopes and confirm these change with host properties, such as the stellar mass and age, meaning a universal SN Ia correction should ideally not be assumed. Analyzing the cosmological standardization, we find evidence for a mass step and a two-dimensional “dust step”, both more pronounced for red SNe. Although comparable, the two steps are not found to be completely analogous. Conclusions. We conclude that host galaxy dust data cannot fully account for the mass step, using either an alternative SN standardization with extinction proxied by host attenuation or a dust-step approach.
Original language | English |
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Article number | A56 |
Journal | Astronomy and Astrophysics |
Volume | 680 |
DOIs | |
State | Published - Dec 1 2023 |
Funding
J.D., S.G.G., A.M. and A.P.A. acknowledge support by FCT under Project CRISP PTDC/FIS-AST-31546/2017 and Project No. UIDB/00099/2020. L.G. acknowledges financial support from the Spanish Ministerio de Ciencia e Innovación (MCIN), the Agencia Estatal de Investigación (AEI) 10.13039/501100011033, and the European Social Fund (ESF) “Investing in your future” under the 2019 Ramón y Cajal program RYC2019-027683-I and the PID2020-115253GA-I00 HOSTFLOWS project, from Centro Superior de Investigaciones Científicas (CSIC) under the PIE project 20215AT016, and the program Unidad de Excelencia María de Maeztu CEX2020-001058-M. L.K. thanks the UKRI Future Leaders Fellowship for support through the grant MR/T01881X/1. Computations were performed at the cluster “Baltasar-Sete-Sóis” and supported by the H2020 ERC Consolidator Grant “Matter and strong field gravity: New frontiers in Einstein’s theory” grant agreement no. MaGRaTh-646597. P.W. acknowledges support from the Science and Technology Facilities Council (STFC) grant ST/R000506/1. Funding for the DES Projects has been provided by the U.S. Department of Energy, the U.S. National Science Foundation, the Ministry of Science and Education of Spain, the Science and Technology Facilities Council of the United Kingdom, the Higher Education Funding Council for England, the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign, the Kavli Institute of Cosmological Physics at the University of Chicago, the Center for Cosmology and Astro-Particle Physics at the Ohio State University, the Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University, Financiadora de Estudos e Projetos, Fundação Carlos Chagas Filho de Amparo á Pesquisa do Estado do Rio de Janeiro, Conselho Nacional de Desenvolvimento Científico e Tecnológico and the Ministério da Ciência, Tecnologia e Inovação, the Deutsche Forschungsgemeinschaft and the Collaborating Institutions in the Dark Energy Survey. The Collaborating Institutions are Argonne National Laboratory, the University of California at Santa Cruz, the University of Cambridge, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas-Madrid, the University of Chicago, University College London, the DES-Brazil Consortium, the University of Edinburgh, the Eidgenössische Technische Hochschule (ETH) Zürich, Fermi National Accelerator Laboratory, the University of Illinois at UrbanaChampaign, the Institut de Ciéncies de l’Espai (IEEC/CSIC), the Institut de Física d’Altes Energies, Lawrence Berkeley National Laboratory, the Ludwig-Maximilians Universität München and the associated Excellence Cluster Universe, the University of Michigan, the National Optical Astronomy Observatory, the University of Nottingham, The Ohio State University, the University of Pennsylvania, the University of Portsmouth, SLAC National Accelerator Laboratory, Stanford University, the University of Sussex, Texas A&M University, and the OzDES Membership Consortium. Based in part on observations at Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, which is operated by the Association of Universities for Research in Astronomy (AURA) under a cooperative agreement with the National Science Foundation. The DES data management system is supported by the National Science Foundation under Grant Numbers AST-1138766 and AST-1536171. The DES participants from Spanish institutions are partially supported by MINECO under grants AYA2015-71825, ESP2015-66861, FPA2015-68048, SEV-2016-0588, SEV2016-0597, and MDM-2015-0509, some of which include ERDF funds from the European Union. IFAE is partially funded by the CERCA program of the Generalitat de Catalunya. Research leading to these results has received funding from the European Research Council under the European Union’s Seventh Framework Program (FP7/2007-2013) including ERC grant agreements 240672, 291329, and 306478. We acknowledge support from the Brazilian Instituto Nacional de Ciência e Tecnologia (INCT) e-Universe (CNPq grant 465376/2014-2). This manuscript has been authored by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy, Office of Science, Office of High Energy Physics.
Funders | Funder number |
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Brazilian Instituto Nacional de Ciência e Tecnologia | |
Centro Superior de Investigaciones Científicas | 20215AT016 |
Collaborating Institutions are Argonne National Laboratory | |
Collaborating Institutions in the Dark Energy Survey | |
Fermi Research Alliance, LLC | DE-AC02-07CH11359 |
H2020 ERC | MaGRaTh-646597 |
Institut de Ciéncies de l’Espai | |
Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University | |
Science and Technology Facilities Council of the United Kingdom | |
Unidad de Excelencia María de Maeztu CEX2020-001058-M | |
National Science Foundation | AST-1138766, AST-1536171 |
National Science Foundation | |
U.S. Department of Energy | |
Stanford University | |
Office of Science | |
High Energy Physics | |
Fermilab | |
Lawrence Berkeley National Laboratory | |
University of California, Santa Cruz | |
University of Pennsylvania | |
Ohio State University | |
University of Chicago | |
University of Michigan | |
Texas A and M University | |
University of Portsmouth | |
University of Illinois System | |
National Centre for Supercomputing Applications | |
Seventh Framework Programme | |
SLAC National Accelerator Laboratory | |
Higher Education Funding Council for England | |
UK Research and Innovation | MR/T01881X/1 |
UK Research and Innovation | |
Science and Technology Facilities Council | ST/R000506/1 |
Science and Technology Facilities Council | |
University College London | |
European Commission | |
European Research Council | 240672, 306478, 291329 |
European Research Council | |
University of Nottingham | |
University of Sussex | |
University of Edinburgh | |
Deutsche Forschungsgemeinschaft | |
Fundação para a Ciência e a Tecnologia | CRISP PTDC/FIS-AST-31546/2017, UIDB/00099/2020 |
Fundação para a Ciência e a Tecnologia | |
Generalitat de Catalunya | |
Eidgenössische Technische Hochschule Zürich | |
Ministerio de Economía y Competitividad | SEV-2016-0588, ESP2015-66861, MDM-2015-0509, FPA2015-68048, AYA2015-71825, SEV2016-0597 |
Ministerio de Economía y Competitividad | |
Ministério da Ciência, Tecnologia e Inovação | |
Conselho Nacional de Desenvolvimento Científico e Tecnológico | 465376/2014-2 |
Conselho Nacional de Desenvolvimento Científico e Tecnológico | |
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro | |
Financiadora de Estudos e Projetos | |
Ministerio de Ciencia e Innovación | |
European Social Fund Plus | PID2020-115253GA-I00, RYC2019-027683-I |
European Social Fund Plus | |
Ludwig-Maximilians-Universität München | |
Instituto Nacional de Ciência e Tecnologia para Excitotoxicidade e Neuroproteção | |
Ministry of Education and Science of Ukraine | |
European Regional Development Fund | |
Agencia Estatal de Investigación | |
Institut de Física d'Altes Energies |
Keywords
- distance scale
- dust, extinction
- galaxies: general
- supernovae: general