The effect of environment on Type Ia supernovae in the Dark Energy Survey three-year cosmological sample

L. Kelsey; M. Sullivan; M. Smith; P. Wiseman; D. Brout; T. M. Davis; C. Frohmaier; L. Galbany; M. Grayling; C. P. Gutiérrez; S. R. Hinton; R. Kessler; C. Lidman; A. Möller; M. Sako; D. Scolnic; S. A. Uddin; M. Vincenzi; T. M.C. Abbott; M. Aguena; S. Allam; J. Annis; S. Avila; D. Bacon; E. Bertin; D. Brooks; D. L. Burke; A. Carnero Rosell; M. Carrasco Kind; J. Carretero; F. J. Castander; M. Costanzi; L. N. Da Costa; S. Desai; H. T. Diehl; P. Doel; S. Everett; I. Ferrero; A. Ferté; B. Flaugher; P. Fosalba; J. Garciá-Bellido; D. W. Gerdes; D. Gruen; R. A. Gruendl; J. Gschwend; G. Gutierrez; D. L. Hollowood; K. Honscheid; D. J. James; A. G. Kim; K. Kuehn; N. Kuropatkin; O. Lahav; M. Lima; J. L. Marshall; P. Martini; F. Menanteau; R. Miquel; R. Morgan; R. L.C. Ogando; A. Palmese; F. Paz-Chinchón; A. A. Plazas; A. K. Romer; C. Sánchez; E. Sanchez; S. Serrano; I. Sevilla-Noarbe; E. Suchyta; G. Tarle; D. Thomas; C. To; T. N. Varga; A. R. Walker; R. D. Wilkinson

doi:10.1093/mnras/staa3924

The effect of environment on Type Ia supernovae in the Dark Energy Survey three-year cosmological sample

L. Kelsey, M. Sullivan, M. Smith, P. Wiseman, D. Brout, T. M. Davis, C. Frohmaier, L. Galbany, M. Grayling, C. P. Gutiérrez, S. R. Hinton, R. Kessler, C. Lidman, A. Möller, M. Sako, D. Scolnic, S. A. Uddin, M. Vincenzi, T. M.C. Abbott, M. AguenaS. Allam, J. Annis, S. Avila, D. Bacon, E. Bertin, D. Brooks, D. L. Burke, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, F. J. Castander, M. Costanzi, L. N. Da Costa, S. Desai, H. T. Diehl, P. Doel, S. Everett, I. Ferrero, A. Ferté, B. Flaugher, P. Fosalba, J. Garciá-Bellido, D. W. Gerdes, D. Gruen, R. A. Gruendl, J. Gschwend, G. Gutierrez, D. L. Hollowood, K. Honscheid, D. J. James, A. G. Kim, K. Kuehn, N. Kuropatkin, O. Lahav, M. Lima, J. L. Marshall, P. Martini, F. Menanteau, R. Miquel, R. Morgan, R. L.C. Ogando, A. Palmese, F. Paz-Chinchón, A. A. Plazas, A. K. Romer, C. Sánchez, E. Sanchez, S. Serrano, I. Sevilla-Noarbe, E. Suchyta, G. Tarle, D. Thomas, C. To, T. N. Varga, A. R. Walker, R. D. Wilkinson

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Abstract

Analyses of Type Ia supernovae (SNe Ia) have found puzzling correlations between their standardized luminosities and host galaxy properties: SNe Ia in high-mass, passive hosts appear brighter than those in lower mass, star-forming hosts. We examine the host galaxies of SNe Ia in the Dark Energy Survey 3-yr spectroscopically confirmed cosmological sample, obtaining photometry in a series of 'local' apertures centred on the SN, and for the global host galaxy. We study the differences in these host galaxy properties, such as stellar mass and rest-frame U - R colours, and their correlations with SN Ia parameters including Hubble residuals. We find all Hubble residual steps to be >3σ in significance, both for splitting at the traditional environmental property sample median and for the step of maximum significance. For stellar mass, we find a maximal local step of 0.098 ± 0.018 mag; ∼0.03 mag greater than the largest global stellar mass step in our sample (0.070 ± 0.017 mag). When splitting at the sample median, differences between local and global U - R steps are small, both ∼0.08 mag, but are more significant than the global stellar mass step (0.057 ± 0.017 mag). We split the data into sub-samples based on SN Ia light-curve parameters: stretch (x1) and colour (c), finding that redder objects (c > 0) have larger Hubble residual steps, for both stellar mass and U - R, for both local and global measurements, of ∼0.14 mag. Additionally, the bluer (star-forming) local environments host a more homogeneous SN Ia sample, with local U - R rms scatter as low as 0.084 ± 0.017 mag for blue (c < 0) SNe Ia in locally blue U - R environments.

Original language	English
Pages (from-to)	4861-4876
Number of pages	16
Journal	Monthly Notices of the Royal Astronomical Society
Volume	501
Issue number	4
DOIs	https://doi.org/10.1093/mnras/staa3924
State	Published - Mar 1 2021
Externally published	Yes

Funding

Funders	Funder number
Horizon 2020 Framework Programme	839090, 1138766, 240672, 615929, 306478, 291329

Keywords

cosmology: observations
distance scale
supernovae: general
surveys

Access to Document

10.1093/mnras/staa3924

Cite this

Kelsey, L., Sullivan, M., Smith, M., Wiseman, P., Brout, D., Davis, T. M., Frohmaier, C., Galbany, L., Grayling, M., Gutiérrez, C. P., Hinton, S. R., Kessler, R., Lidman, C., Möller, A., Sako, M., Scolnic, D., Uddin, S. A., Vincenzi, M., Abbott, T. M. C., ... Wilkinson, R. D. (2021). The effect of environment on Type Ia supernovae in the Dark Energy Survey three-year cosmological sample. Monthly Notices of the Royal Astronomical Society, 501(4), 4861-4876. https://doi.org/10.1093/mnras/staa3924

@article{d093d2eef65a4b60a4801999ca1f588a,

title = "The effect of environment on Type Ia supernovae in the Dark Energy Survey three-year cosmological sample",

abstract = "Analyses of Type Ia supernovae (SNe Ia) have found puzzling correlations between their standardized luminosities and host galaxy properties: SNe Ia in high-mass, passive hosts appear brighter than those in lower mass, star-forming hosts. We examine the host galaxies of SNe Ia in the Dark Energy Survey 3-yr spectroscopically confirmed cosmological sample, obtaining photometry in a series of 'local' apertures centred on the SN, and for the global host galaxy. We study the differences in these host galaxy properties, such as stellar mass and rest-frame U - R colours, and their correlations with SN Ia parameters including Hubble residuals. We find all Hubble residual steps to be >3σ in significance, both for splitting at the traditional environmental property sample median and for the step of maximum significance. For stellar mass, we find a maximal local step of 0.098 ± 0.018 mag; ∼0.03 mag greater than the largest global stellar mass step in our sample (0.070 ± 0.017 mag). When splitting at the sample median, differences between local and global U - R steps are small, both ∼0.08 mag, but are more significant than the global stellar mass step (0.057 ± 0.017 mag). We split the data into sub-samples based on SN Ia light-curve parameters: stretch (x1) and colour (c), finding that redder objects (c > 0) have larger Hubble residual steps, for both stellar mass and U - R, for both local and global measurements, of ∼0.14 mag. Additionally, the bluer (star-forming) local environments host a more homogeneous SN Ia sample, with local U - R rms scatter as low as 0.084 ± 0.017 mag for blue (c < 0) SNe Ia in locally blue U - R environments.",

keywords = "cosmology: observations, distance scale, supernovae: general, surveys",

author = "L. Kelsey and M. Sullivan and M. Smith and P. Wiseman and D. Brout and Davis, {T. M.} and C. Frohmaier and L. Galbany and M. Grayling and Guti{\'e}rrez, {C. P.} and Hinton, {S. R.} and R. Kessler and C. Lidman and A. M{\"o}ller and M. Sako and D. Scolnic and Uddin, {S. A.} and M. Vincenzi and Abbott, {T. M.C.} and M. Aguena and S. Allam and J. Annis and S. Avila and D. Bacon and E. Bertin and D. Brooks and Burke, {D. L.} and {Carnero Rosell}, A. and {Carrasco Kind}, M. and J. Carretero and Castander, {F. J.} and M. Costanzi and {Da Costa}, {L. N.} and S. Desai and Diehl, {H. T.} and P. Doel and S. Everett and I. Ferrero and A. Fert{\'e} and B. Flaugher and P. Fosalba and J. Garci{\'a}-Bellido and Gerdes, {D. W.} and D. Gruen and Gruendl, {R. A.} and J. Gschwend and G. Gutierrez and Hollowood, {D. L.} and K. Honscheid and James, {D. J.} and Kim, {A. G.} and K. Kuehn and N. Kuropatkin and O. Lahav and M. Lima and Marshall, {J. L.} and P. Martini and F. Menanteau and R. Miquel and R. Morgan and Ogando, {R. L.C.} and A. Palmese and F. Paz-Chinch{\'o}n and Plazas, {A. A.} and Romer, {A. K.} and C. S{\'a}nchez and E. Sanchez and S. Serrano and I. Sevilla-Noarbe and E. Suchyta and G. Tarle and D. Thomas and C. To and Varga, {T. N.} and Walker, {A. R.} and Wilkinson, {R. D.}",

note = "Publisher Copyright: {\textcopyright} 2021 2020 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.",

year = "2021",

month = mar,

day = "1",

doi = "10.1093/mnras/staa3924",

language = "English",

volume = "501",

pages = "4861--4876",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "4",

}

Kelsey, L, Sullivan, M, Smith, M, Wiseman, P, Brout, D, Davis, TM, Frohmaier, C, Galbany, L, Grayling, M, Gutiérrez, CP, Hinton, SR, Kessler, R, Lidman, C, Möller, A, Sako, M, Scolnic, D, Uddin, SA, Vincenzi, M, Abbott, TMC, Aguena, M, Allam, S, Annis, J, Avila, S, Bacon, D, Bertin, E, Brooks, D, Burke, DL, Carnero Rosell, A, Carrasco Kind, M, Carretero, J, Castander, FJ, Costanzi, M, Da Costa, LN, Desai, S, Diehl, HT, Doel, P, Everett, S, Ferrero, I, Ferté, A, Flaugher, B, Fosalba, P, Garciá-Bellido, J, Gerdes, DW, Gruen, D, Gruendl, RA, Gschwend, J, Gutierrez, G, Hollowood, DL, Honscheid, K, James, DJ, Kim, AG, Kuehn, K, Kuropatkin, N, Lahav, O, Lima, M, Marshall, JL, Martini, P, Menanteau, F, Miquel, R, Morgan, R, Ogando, RLC, Palmese, A, Paz-Chinchón, F, Plazas, AA, Romer, AK, Sánchez, C, Sanchez, E, Serrano, S, Sevilla-Noarbe, I, Suchyta, E, Tarle, G, Thomas, D, To, C, Varga, TN, Walker, AR & Wilkinson, RD 2021, 'The effect of environment on Type Ia supernovae in the Dark Energy Survey three-year cosmological sample', Monthly Notices of the Royal Astronomical Society, vol. 501, no. 4, pp. 4861-4876. https://doi.org/10.1093/mnras/staa3924

TY - JOUR

T1 - The effect of environment on Type Ia supernovae in the Dark Energy Survey three-year cosmological sample

AU - Kelsey, L.

AU - Sullivan, M.

AU - Smith, M.

AU - Wiseman, P.

AU - Brout, D.

AU - Davis, T. M.

AU - Frohmaier, C.

AU - Galbany, L.

AU - Grayling, M.

AU - Gutiérrez, C. P.

AU - Hinton, S. R.

AU - Kessler, R.

AU - Lidman, C.

AU - Möller, A.

AU - Sako, M.

AU - Scolnic, D.

AU - Uddin, S. A.

AU - Vincenzi, M.

AU - Abbott, T. M.C.

AU - Aguena, M.

AU - Allam, S.

AU - Annis, J.

AU - Avila, S.

AU - Bacon, D.

AU - Bertin, E.

AU - Brooks, D.

AU - Burke, D. L.

AU - Carnero Rosell, A.

AU - Carrasco Kind, M.

AU - Carretero, J.

AU - Castander, F. J.

AU - Costanzi, M.

AU - Da Costa, L. N.

AU - Desai, S.

AU - Diehl, H. T.

AU - Doel, P.

AU - Everett, S.

AU - Ferrero, I.

AU - Ferté, A.

AU - Flaugher, B.

AU - Fosalba, P.

AU - Garciá-Bellido, J.

AU - Gerdes, D. W.

AU - Gruen, D.

AU - Gruendl, R. A.

AU - Gschwend, J.

AU - Gutierrez, G.

AU - Hollowood, D. L.

AU - Honscheid, K.

AU - James, D. J.

AU - Kim, A. G.

AU - Kuehn, K.

AU - Kuropatkin, N.

AU - Lahav, O.

AU - Lima, M.

AU - Marshall, J. L.

AU - Martini, P.

AU - Menanteau, F.

AU - Miquel, R.

AU - Morgan, R.

AU - Ogando, R. L.C.

AU - Palmese, A.

AU - Paz-Chinchón, F.

AU - Plazas, A. A.

AU - Romer, A. K.

AU - Sánchez, C.

AU - Sanchez, E.

AU - Serrano, S.

AU - Sevilla-Noarbe, I.

AU - Suchyta, E.

AU - Tarle, G.

AU - Thomas, D.

AU - To, C.

AU - Varga, T. N.

AU - Walker, A. R.

AU - Wilkinson, R. D.

PY - 2021/3/1

Y1 - 2021/3/1

N2 - Analyses of Type Ia supernovae (SNe Ia) have found puzzling correlations between their standardized luminosities and host galaxy properties: SNe Ia in high-mass, passive hosts appear brighter than those in lower mass, star-forming hosts. We examine the host galaxies of SNe Ia in the Dark Energy Survey 3-yr spectroscopically confirmed cosmological sample, obtaining photometry in a series of 'local' apertures centred on the SN, and for the global host galaxy. We study the differences in these host galaxy properties, such as stellar mass and rest-frame U - R colours, and their correlations with SN Ia parameters including Hubble residuals. We find all Hubble residual steps to be >3σ in significance, both for splitting at the traditional environmental property sample median and for the step of maximum significance. For stellar mass, we find a maximal local step of 0.098 ± 0.018 mag; ∼0.03 mag greater than the largest global stellar mass step in our sample (0.070 ± 0.017 mag). When splitting at the sample median, differences between local and global U - R steps are small, both ∼0.08 mag, but are more significant than the global stellar mass step (0.057 ± 0.017 mag). We split the data into sub-samples based on SN Ia light-curve parameters: stretch (x1) and colour (c), finding that redder objects (c > 0) have larger Hubble residual steps, for both stellar mass and U - R, for both local and global measurements, of ∼0.14 mag. Additionally, the bluer (star-forming) local environments host a more homogeneous SN Ia sample, with local U - R rms scatter as low as 0.084 ± 0.017 mag for blue (c < 0) SNe Ia in locally blue U - R environments.

AB - Analyses of Type Ia supernovae (SNe Ia) have found puzzling correlations between their standardized luminosities and host galaxy properties: SNe Ia in high-mass, passive hosts appear brighter than those in lower mass, star-forming hosts. We examine the host galaxies of SNe Ia in the Dark Energy Survey 3-yr spectroscopically confirmed cosmological sample, obtaining photometry in a series of 'local' apertures centred on the SN, and for the global host galaxy. We study the differences in these host galaxy properties, such as stellar mass and rest-frame U - R colours, and their correlations with SN Ia parameters including Hubble residuals. We find all Hubble residual steps to be >3σ in significance, both for splitting at the traditional environmental property sample median and for the step of maximum significance. For stellar mass, we find a maximal local step of 0.098 ± 0.018 mag; ∼0.03 mag greater than the largest global stellar mass step in our sample (0.070 ± 0.017 mag). When splitting at the sample median, differences between local and global U - R steps are small, both ∼0.08 mag, but are more significant than the global stellar mass step (0.057 ± 0.017 mag). We split the data into sub-samples based on SN Ia light-curve parameters: stretch (x1) and colour (c), finding that redder objects (c > 0) have larger Hubble residual steps, for both stellar mass and U - R, for both local and global measurements, of ∼0.14 mag. Additionally, the bluer (star-forming) local environments host a more homogeneous SN Ia sample, with local U - R rms scatter as low as 0.084 ± 0.017 mag for blue (c < 0) SNe Ia in locally blue U - R environments.

KW - cosmology: observations

KW - distance scale

KW - supernovae: general

KW - surveys

UR - http://www.scopus.com/inward/record.url?scp=85100745802&partnerID=8YFLogxK

U2 - 10.1093/mnras/staa3924

DO - 10.1093/mnras/staa3924

M3 - Article

AN - SCOPUS:85100745802

SN - 0035-8711

VL - 501

SP - 4861

EP - 4876

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 4

ER -

The effect of environment on Type Ia supernovae in the Dark Energy Survey three-year cosmological sample

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