Home > Research > Publications & Outputs > See Change

### Electronic data

• 2005.07112

Rights statement: This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The definitive publisher-authenticated version S C Williams, I M Hook, B Hayden, J Nordin, G Aldering, K Boone, A Goobar, C E Lidman, S Perlmutter, D Rubin, P Ruiz-Lapuente, C Saunders, (The Supernova Cosmology Project), See Change: VLT spectroscopy of a sample of high-redshift Type Ia supernova host galaxies, Monthly Notices of the Royal Astronomical Society, Volume 495, Issue 4, July 2020, Pages 3859–3880, https://doi.org/10.1093/mnras/staa1319 is available online at: https://academic.oup.com/mnras/article-abstract/495/4/3859/5837586

Accepted author manuscript, 5.22 MB, PDF document

## See Change: VLT spectroscopy of a sample of high-redshift Type Ia supernova host galaxies

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Published

### Standard

See Change : VLT spectroscopy of a sample of high-redshift Type Ia supernova host galaxies. / Williams, S. C.; Hook, I. M.; Hayden, B.; Nordin, Jakob; Aldering, G.; Boone, K.; Goobar, A.; Lidman, C. E.; Perlmutter, S.; Rubin, David; Ruiz-Lapuente, P.; Saunders, C.

In: Monthly Notices of the Royal Astronomical Society, Vol. 495, No. 4, 01.07.2020, p. 3859-3880.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

### Harvard

Williams, SC, Hook, IM, Hayden, B, Nordin, J, Aldering, G, Boone, K, Goobar, A, Lidman, CE, Perlmutter, S, Rubin, D, Ruiz-Lapuente, P & Saunders, C 2020, 'See Change: VLT spectroscopy of a sample of high-redshift Type Ia supernova host galaxies', Monthly Notices of the Royal Astronomical Society, vol. 495, no. 4, pp. 3859-3880. https://doi.org/10.1093/mnras/staa1319

### APA

Williams, S. C., Hook, I. M., Hayden, B., Nordin, J., Aldering, G., Boone, K., Goobar, A., Lidman, C. E., Perlmutter, S., Rubin, D., Ruiz-Lapuente, P., & Saunders, C. (2020). See Change: VLT spectroscopy of a sample of high-redshift Type Ia supernova host galaxies. Monthly Notices of the Royal Astronomical Society, 495(4), 3859-3880. https://doi.org/10.1093/mnras/staa1319

### Vancouver

Williams SC, Hook IM, Hayden B, Nordin J, Aldering G, Boone K et al. See Change: VLT spectroscopy of a sample of high-redshift Type Ia supernova host galaxies. Monthly Notices of the Royal Astronomical Society. 2020 Jul 1;495(4):3859-3880. https://doi.org/10.1093/mnras/staa1319

### Author

Williams, S. C. ; Hook, I. M. ; Hayden, B. ; Nordin, Jakob ; Aldering, G. ; Boone, K. ; Goobar, A. ; Lidman, C. E. ; Perlmutter, S. ; Rubin, David ; Ruiz-Lapuente, P. ; Saunders, C. / See Change : VLT spectroscopy of a sample of high-redshift Type Ia supernova host galaxies. In: Monthly Notices of the Royal Astronomical Society. 2020 ; Vol. 495, No. 4. pp. 3859-3880.

### Bibtex

@article{c0fda5cca2ab415193500f15c23f1991,
title = "See Change: VLT spectroscopy of a sample of high-redshift Type Ia supernova host galaxies",
abstract = "The Supernova Cosmology Project has conducted the See Change' programme, aimed at discovering and observing high-redshift (1.13 $\leq$ z $\leq$ 1.75) Type Ia supernovae (SNe Ia). We used multi-filter Hubble Space Telescope (HST) observations of massive galaxy clusters with sufficient cadence to make the observed SN Ia light curves suitable for a cosmological probe of dark energy at z > 0.5. As part of the See Change programme, we obtained ground-based spectroscopy of each discovered transient and/or its host galaxy. Here we present Very Large Telescope (VLT) spectra of See Change transient host galaxies, deriving their redshifts, and host parameters such as stellar mass and star formation rate. Of the 39 See Change transients/hosts that were observed with the VLT, we successfully determined the redshift for 26, including 15 SNe Ia at z > 0.97. This new sample of SNe Ia with multi-colour light curves is the largest to date at these redshifts. We show that even in passive environments, it is possible to recover secure redshifts for the majority of SN hosts out to z = 1.5. We find that with typical exposure times of 3 - 4 hrs on an 8m-class telescope we can recover ~75% of SN Ia redshifts in the range of 0.97 <z <1.5. Furthermore, we show that the combination of HST photometry and VLT spectroscopy is able to provide estimates of host galaxy stellar mass that are sufficiently accurate for use in a mass-step correction in the cosmological analysis.",
keywords = "Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics",
author = "Williams, {S. C.} and Hook, {I. M.} and B. Hayden and Jakob Nordin and G. Aldering and K. Boone and A. Goobar and Lidman, {C. E.} and S. Perlmutter and David Rubin and P. Ruiz-Lapuente and C. Saunders",
note = "This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The definitive publisher-authenticated version S C Williams, I M Hook, B Hayden, J Nordin, G Aldering, K Boone, A Goobar, C E Lidman, S Perlmutter, D Rubin, P Ruiz-Lapuente, C Saunders, (The Supernova Cosmology Project), See Change: VLT spectroscopy of a sample of high-redshift Type Ia supernova host galaxies, Monthly Notices of the Royal Astronomical Society, Volume 495, Issue 4, July 2020, Pages 3859–3880, https://doi.org/10.1093/mnras/staa1319 is available online at: https://academic.oup.com/mnras/article-abstract/495/4/3859/5837586",
year = "2020",
month = jul,
day = "1",
doi = "10.1093/mnras/staa1319",
language = "English",
volume = "495",
pages = "3859--3880",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "OXFORD UNIV PRESS",
number = "4",

}

### RIS

TY - JOUR

T1 - See Change

T2 - VLT spectroscopy of a sample of high-redshift Type Ia supernova host galaxies

AU - Williams, S. C.

AU - Hook, I. M.

AU - Hayden, B.

AU - Nordin, Jakob

AU - Aldering, G.

AU - Boone, K.

AU - Goobar, A.

AU - Lidman, C. E.

AU - Perlmutter, S.

AU - Rubin, David

AU - Ruiz-Lapuente, P.

AU - Saunders, C.

N1 - This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The definitive publisher-authenticated version S C Williams, I M Hook, B Hayden, J Nordin, G Aldering, K Boone, A Goobar, C E Lidman, S Perlmutter, D Rubin, P Ruiz-Lapuente, C Saunders, (The Supernova Cosmology Project), See Change: VLT spectroscopy of a sample of high-redshift Type Ia supernova host galaxies, Monthly Notices of the Royal Astronomical Society, Volume 495, Issue 4, July 2020, Pages 3859–3880, https://doi.org/10.1093/mnras/staa1319 is available online at: https://academic.oup.com/mnras/article-abstract/495/4/3859/5837586

PY - 2020/7/1

Y1 - 2020/7/1

N2 - The Supernova Cosmology Project has conducted the See Change' programme, aimed at discovering and observing high-redshift (1.13 $\leq$ z $\leq$ 1.75) Type Ia supernovae (SNe Ia). We used multi-filter Hubble Space Telescope (HST) observations of massive galaxy clusters with sufficient cadence to make the observed SN Ia light curves suitable for a cosmological probe of dark energy at z > 0.5. As part of the See Change programme, we obtained ground-based spectroscopy of each discovered transient and/or its host galaxy. Here we present Very Large Telescope (VLT) spectra of See Change transient host galaxies, deriving their redshifts, and host parameters such as stellar mass and star formation rate. Of the 39 See Change transients/hosts that were observed with the VLT, we successfully determined the redshift for 26, including 15 SNe Ia at z > 0.97. This new sample of SNe Ia with multi-colour light curves is the largest to date at these redshifts. We show that even in passive environments, it is possible to recover secure redshifts for the majority of SN hosts out to z = 1.5. We find that with typical exposure times of 3 - 4 hrs on an 8m-class telescope we can recover ~75% of SN Ia redshifts in the range of 0.97 <z <1.5. Furthermore, we show that the combination of HST photometry and VLT spectroscopy is able to provide estimates of host galaxy stellar mass that are sufficiently accurate for use in a mass-step correction in the cosmological analysis.

AB - The Supernova Cosmology Project has conducted the `See Change' programme, aimed at discovering and observing high-redshift (1.13 $\leq$ z $\leq$ 1.75) Type Ia supernovae (SNe Ia). We used multi-filter Hubble Space Telescope (HST) observations of massive galaxy clusters with sufficient cadence to make the observed SN Ia light curves suitable for a cosmological probe of dark energy at z > 0.5. As part of the See Change programme, we obtained ground-based spectroscopy of each discovered transient and/or its host galaxy. Here we present Very Large Telescope (VLT) spectra of See Change transient host galaxies, deriving their redshifts, and host parameters such as stellar mass and star formation rate. Of the 39 See Change transients/hosts that were observed with the VLT, we successfully determined the redshift for 26, including 15 SNe Ia at z > 0.97. This new sample of SNe Ia with multi-colour light curves is the largest to date at these redshifts. We show that even in passive environments, it is possible to recover secure redshifts for the majority of SN hosts out to z = 1.5. We find that with typical exposure times of 3 - 4 hrs on an 8m-class telescope we can recover ~75% of SN Ia redshifts in the range of 0.97 <z <1.5. Furthermore, we show that the combination of HST photometry and VLT spectroscopy is able to provide estimates of host galaxy stellar mass that are sufficiently accurate for use in a mass-step correction in the cosmological analysis.

KW - Astrophysics - Astrophysics of Galaxies

KW - Astrophysics - Cosmology and Nongalactic Astrophysics

U2 - 10.1093/mnras/staa1319

DO - 10.1093/mnras/staa1319

M3 - Journal article

VL - 495

SP - 3859

EP - 3880

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 4

ER -