Quantitative comparison between type la supernova spectra at low and high redshifts: A case study

G. Garavini; G. Folatelli; S. Nobili; G. Aldering; R. Amanullah; P. Antilogus; P. Astier; G. Blanc; T. Bronder; M. S. Burns; A. Conley; S. E. Deustua; M. Doi; S. Fabbro; V. Fadeyev; R. Gibbons; G. Goldhaber; A. Goobar; D. E. Groom; I. Hook; D. A. Howell; N. Kashikawa; A. G. Kim; M. Kowalski; N. Kuznetsova; B. C. Lee; C. Lidman; J. Mendez; T. Morokuma; K. Motohara; P. E. Nugent; R. Pain; S. Perlmutter; R. Quimby; J. Raux; N. Regnault; P. Ruiz-Lapuente; G. Sainton; K. Schahmaneche; E. Smith; A. L. Spadafora; V. Stanishev; R. C. Thomas; N. A. Walton; L. Wang; W. M. Wood-Vasey; N. Yasuda

doi:10.1051/0004-6361:20065400

Quantitative comparison between type la supernova spectra at low and high redshifts: A case study

G. Garavini^*
, G. Folatelli
, S. Nobili
, G. Aldering
, R. Amanullah
, P. Antilogus
, P. Astier
, G. Blanc
, T. Bronder
, M. S. Burns
, A. Conley
, S. E. Deustua
, M. Doi
, S. Fabbro
, V. Fadeyev
, R. Gibbons
, G. Goldhaber
, A. Goobar
, D. E. Groom
, I. Hook

D. A. Howell, N. Kashikawa, A. G. Kim, M. Kowalski, N. Kuznetsova, B. C. Lee, C. Lidman, J. Mendez, T. Morokuma, K. Motohara, P. E. Nugent, R. Pain, S. Perlmutter, R. Quimby, J. Raux, N. Regnault, P. Ruiz-Lapuente, G. Sainton, K. Schahmaneche, E. Smith, A. L. Spadafora, V. Stanishev, R. C. Thomas, N. A. Walton, L. Wang, W. M. Wood-Vasey, N. Yasuda

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

50 Citations (Scopus)

Abstract

We develop a method to measure the strength of the absorption features in type la supernova (SN la) spectra and use it to make a quantitative comparisons between the spectra of type la supernovae at low and high redshifts. In this case study, we apply the method to 12 high-redshift (0.212 ≤ z ≤ 0.912) SNe la observed by the Supernova Cosmology Project. Through measurements of the strengths of these features and of the blueshift of the absorption minimum in Ca II H&K, we show that the spectra of the high-redshift SNe Ia are quantitatively similar to spectra of nearby SNe la (z < 0.15). One supernova in our high redshift sample, SN 2002fd at z = 0.279, is found to have spectral characteristics that are associated with peculiar SN 1991T/SN 1999aa-like supernovae.

Original language	English
Pages (from-to)	411-424
Number of pages	14
Journal	Astronomy and Astrophysics
Volume	470
Issue number	2
DOIs	https://doi.org/10.1051/0004-6361:20065400
Publication status	Published - 1 Jan 2007
Externally published	Yes

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Garavini, G., Folatelli, G., Nobili, S., Aldering, G., Amanullah, R., Antilogus, P., Astier, P., Blanc, G., Bronder, T., Burns, M. S., Conley, A., Deustua, S. E., Doi, M., Fabbro, S., Fadeyev, V., Gibbons, R., Goldhaber, G., Goobar, A., Groom, D. E., ... Yasuda, N. (2007). Quantitative comparison between type la supernova spectra at low and high redshifts: A case study. Astronomy and Astrophysics, 470(2), 411-424. https://doi.org/10.1051/0004-6361:20065400

@article{e582db9ab2674e0d8ba63171c302f67c,

title = "Quantitative comparison between type la supernova spectra at low and high redshifts: A case study",

abstract = "We develop a method to measure the strength of the absorption features in type la supernova (SN la) spectra and use it to make a quantitative comparisons between the spectra of type la supernovae at low and high redshifts. In this case study, we apply the method to 12 high-redshift (0.212 ≤ z ≤ 0.912) SNe la observed by the Supernova Cosmology Project. Through measurements of the strengths of these features and of the blueshift of the absorption minimum in Ca II H\&K, we show that the spectra of the high-redshift SNe Ia are quantitatively similar to spectra of nearby SNe la (z < 0.15). One supernova in our high redshift sample, SN 2002fd at z = 0.279, is found to have spectral characteristics that are associated with peculiar SN 1991T/SN 1999aa-like supernovae.",

keywords = "Cosmology: early Universe, Stars: supernovae: general",

author = "G. Garavini and G. Folatelli and S. Nobili and G. Aldering and R. Amanullah and P. Antilogus and P. Astier and G. Blanc and T. Bronder and Burns, \{M. S.\} and A. Conley and Deustua, \{S. E.\} and M. Doi and S. Fabbro and V. Fadeyev and R. Gibbons and G. Goldhaber and A. Goobar and Groom, \{D. E.\} and I. Hook and Howell, \{D. A.\} and N. Kashikawa and Kim, \{A. G.\} and M. Kowalski and N. Kuznetsova and Lee, \{B. C.\} and C. Lidman and J. Mendez and T. Morokuma and K. Motohara and Nugent, \{P. E.\} and R. Pain and S. Perlmutter and R. Quimby and J. Raux and N. Regnault and P. Ruiz-Lapuente and G. Sainton and K. Schahmaneche and E. Smith and Spadafora, \{A. L.\} and V. Stanishev and Thomas, \{R. C.\} and Walton, \{N. A.\} and L. Wang and Wood-Vasey, \{W. M.\} and N. Yasuda",

year = "2007",

month = jan,

day = "1",

doi = "10.1051/0004-6361:20065400",

language = "English",

volume = "470",

pages = "411--424",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

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number = "2",

}

Garavini, G, Folatelli, G, Nobili, S, Aldering, G, Amanullah, R, Antilogus, P, Astier, P, Blanc, G, Bronder, T, Burns, MS, Conley, A, Deustua, SE, Doi, M, Fabbro, S, Fadeyev, V, Gibbons, R, Goldhaber, G, Goobar, A, Groom, DE, Hook, I, Howell, DA, Kashikawa, N, Kim, AG, Kowalski, M, Kuznetsova, N, Lee, BC, Lidman, C, Mendez, J, Morokuma, T, Motohara, K, Nugent, PE, Pain, R, Perlmutter, S, Quimby, R, Raux, J, Regnault, N, Ruiz-Lapuente, P, Sainton, G, Schahmaneche, K, Smith, E, Spadafora, AL, Stanishev, V, Thomas, RC, Walton, NA, Wang, L, Wood-Vasey, WM & Yasuda, N 2007, 'Quantitative comparison between type la supernova spectra at low and high redshifts: A case study', Astronomy and Astrophysics, vol. 470, no. 2, pp. 411-424. https://doi.org/10.1051/0004-6361:20065400

TY - JOUR

T1 - Quantitative comparison between type la supernova spectra at low and high redshifts

T2 - A case study

AU - Garavini, G.

AU - Folatelli, G.

AU - Nobili, S.

AU - Aldering, G.

AU - Amanullah, R.

AU - Antilogus, P.

AU - Astier, P.

AU - Blanc, G.

AU - Bronder, T.

AU - Burns, M. S.

AU - Conley, A.

AU - Deustua, S. E.

AU - Doi, M.

AU - Fabbro, S.

AU - Fadeyev, V.

AU - Gibbons, R.

AU - Goldhaber, G.

AU - Goobar, A.

AU - Groom, D. E.

AU - Hook, I.

AU - Howell, D. A.

AU - Kashikawa, N.

AU - Kim, A. G.

AU - Kowalski, M.

AU - Kuznetsova, N.

AU - Lee, B. C.

AU - Lidman, C.

AU - Mendez, J.

AU - Morokuma, T.

AU - Motohara, K.

AU - Nugent, P. E.

AU - Pain, R.

AU - Perlmutter, S.

AU - Quimby, R.

AU - Raux, J.

AU - Regnault, N.

AU - Ruiz-Lapuente, P.

AU - Sainton, G.

AU - Schahmaneche, K.

AU - Smith, E.

AU - Spadafora, A. L.

AU - Stanishev, V.

AU - Thomas, R. C.

AU - Walton, N. A.

AU - Wang, L.

AU - Wood-Vasey, W. M.

AU - Yasuda, N.

PY - 2007/1/1

Y1 - 2007/1/1

N2 - We develop a method to measure the strength of the absorption features in type la supernova (SN la) spectra and use it to make a quantitative comparisons between the spectra of type la supernovae at low and high redshifts. In this case study, we apply the method to 12 high-redshift (0.212 ≤ z ≤ 0.912) SNe la observed by the Supernova Cosmology Project. Through measurements of the strengths of these features and of the blueshift of the absorption minimum in Ca II H&K, we show that the spectra of the high-redshift SNe Ia are quantitatively similar to spectra of nearby SNe la (z < 0.15). One supernova in our high redshift sample, SN 2002fd at z = 0.279, is found to have spectral characteristics that are associated with peculiar SN 1991T/SN 1999aa-like supernovae.

AB - We develop a method to measure the strength of the absorption features in type la supernova (SN la) spectra and use it to make a quantitative comparisons between the spectra of type la supernovae at low and high redshifts. In this case study, we apply the method to 12 high-redshift (0.212 ≤ z ≤ 0.912) SNe la observed by the Supernova Cosmology Project. Through measurements of the strengths of these features and of the blueshift of the absorption minimum in Ca II H&K, we show that the spectra of the high-redshift SNe Ia are quantitatively similar to spectra of nearby SNe la (z < 0.15). One supernova in our high redshift sample, SN 2002fd at z = 0.279, is found to have spectral characteristics that are associated with peculiar SN 1991T/SN 1999aa-like supernovae.

KW - Cosmology: early Universe

KW - Stars: supernovae: general

UR - https://www.scopus.com/pages/publications/34547364426

U2 - 10.1051/0004-6361:20065400

DO - 10.1051/0004-6361:20065400

M3 - Article

AN - SCOPUS:34547364426

SN - 0004-6361

VL - 470

SP - 411

EP - 424

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

IS - 2

ER -

Quantitative comparison between type la supernova spectra at low and high redshifts: A case study

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