Skip to main content
Journal cover image

A sample of dust attenuation laws for Dark Energy Survey supernova host galaxies

Publication ,  Journal Article
Duarte, J; González-Gaitán, S; Mourão, A; Paulino-Afonso, A; Guilherme-Garcia, P; Águas, J; Galbany, L; Kelsey, L; Scolnic, D; Sullivan, M ...
Published in: Astronomy and Astrophysics
December 1, 2023

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.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

Astronomy and Astrophysics

DOI

EISSN

1432-0746

ISSN

0004-6361

Publication Date

December 1, 2023

Volume

680

Related Subject Headings

  • Astronomy & Astrophysics
  • 5109 Space sciences
  • 5107 Particle and high energy physics
  • 5101 Astronomical sciences
  • 0201 Astronomical and Space Sciences
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Duarte, J., González-Gaitán, S., Mourão, A., Paulino-Afonso, A., Guilherme-Garcia, P., Águas, J., … Weaverdyck, N. (2023). A sample of dust attenuation laws for Dark Energy Survey supernova host galaxies. Astronomy and Astrophysics, 680. https://doi.org/10.1051/0004-6361/202346534
Duarte, J., S. González-Gaitán, A. Mourão, A. Paulino-Afonso, P. Guilherme-Garcia, J. Águas, L. Galbany, et al. “A sample of dust attenuation laws for Dark Energy Survey supernova host galaxies.” Astronomy and Astrophysics 680 (December 1, 2023). https://doi.org/10.1051/0004-6361/202346534.
Duarte J, González-Gaitán S, Mourão A, Paulino-Afonso A, Guilherme-Garcia P, Águas J, et al. A sample of dust attenuation laws for Dark Energy Survey supernova host galaxies. Astronomy and Astrophysics. 2023 Dec 1;680.
Duarte, J., et al. “A sample of dust attenuation laws for Dark Energy Survey supernova host galaxies.” Astronomy and Astrophysics, vol. 680, Dec. 2023. Scopus, doi:10.1051/0004-6361/202346534.
Duarte J, González-Gaitán S, Mourão A, Paulino-Afonso A, Guilherme-Garcia P, Águas J, Galbany L, Kelsey L, Scolnic D, Sullivan M, Brout D, Palmese A, Wiseman P, Aguena M, Alves O, Bacon D, Bertin E, Bocquet S, Brooks D, Burke DL, Carnero Rosell A, Carrasco Kind M, Carretero J, Costanzi M, Pereira MES, Davis TM, De Vicente J, Desai S, Diehl HT, Doel P, Everett S, Ferrero I, Friedel D, Frieman J, García-Bellido J, Gatti M, Gerdes DW, Gruen D, Gruendl RA, Gutierrez G, Hinton SR, Hollowood DL, Honscheid K, James DJ, Kuehn K, Kuropatkin N, Melchior P, Miquel R, Paz-Chinchón F, Pieres A, Plazas Malagón AA, Raveri M, Rodriguez-Monroy M, Sanchez E, Scarpine V, Sevilla-Noarbe I, Smith M, Suchyta E, Tarle G, To C, Weaverdyck N. A sample of dust attenuation laws for Dark Energy Survey supernova host galaxies. Astronomy and Astrophysics. 2023 Dec 1;680.
Journal cover image

Published In

Astronomy and Astrophysics

DOI

EISSN

1432-0746

ISSN

0004-6361

Publication Date

December 1, 2023

Volume

680

Related Subject Headings

  • Astronomy & Astrophysics
  • 5109 Space sciences
  • 5107 Particle and high energy physics
  • 5101 Astronomical sciences
  • 0201 Astronomical and Space Sciences