Optical spectra of type Ia supernovae at z = 0.46 and z = 1.2

Alison L. Coil; Thomas Matheson; Alexei V. Filippenko; Douglas C. Leonard; John Tonry; Adam G. Riess; Peter Challis; Alejandro Clocchiatti; Peter M. Garnavich; Craig J. Hogan; Saurabh Jha; Robert P. Kirshner; B. Leibundgut; M. M. Phillips; Brian P. Schmidt; Robert A. Schommer; R. Chris Smith; Alicia M. Soderberg; J. Spyromilio; Christopher Stubbs; Nicholas B. Suntzeff; Patrick Woudt

doi:10.1086/317311

Optical spectra of type Ia supernovae at z = 0.46 and z = 1.2

Alison L. Coil, Thomas Matheson, Alexei V. Filippenko, Douglas C. Leonard, John Tonry, Adam G. Riess, Peter Challis, Alejandro Clocchiatti, Peter M. Garnavich, Craig J. Hogan, Saurabh Jha, Robert P. Kirshner, B. Leibundgut, M. M. Phillips, Brian P. Schmidt, Robert A. Schommer, R. Chris Smith, Alicia M. Soderberg, J. Spyromilio, Christopher StubbsNicholas B. Suntzeff, Patrick Woudt

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6 Scopus citations

Abstract

We present optical spectra, obtained with the Keck 10 m telescope, of two high-redshift Type Ia supernovae (SNe Ia) discovered by the High-z Supernova Search Team: SN 1999ff at z = 0.455 and SN 1999fv at z ∼ 1.2, the highest redshift published SN Ia spectrum. Both SNe were at maximum light when the spectra were taken. We compare our high-z spectra with low-z normal and peculiar SNe Ia as well as with SNe Ic, Ib, and II. There are no significant differences between SN 1999ff and normal SNe Ia at low redshift. SN 1999fv appears to be an SN Ia and does not resemble the most peculiar nearby SNe Ia.

Original language	English (US)
Pages (from-to)	L111-L114
Journal	Astrophysical Journal
Volume	544
Issue number	2 PART 2
DOIs	https://doi.org/10.1086/317311
State	Published - Dec 1 2000
Externally published	Yes

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

Cosmology: observations
Supernovae: general
Supernovae: individual (SN 1999ff, SN 1999fv)

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10.1086/317311

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Coil, A. L., Matheson, T., Filippenko, A. V., Leonard, D. C., Tonry, J., Riess, A. G., Challis, P., Clocchiatti, A., Garnavich, P. M., Hogan, C. J., Jha, S., Kirshner, R. P., Leibundgut, B., Phillips, M. M., Schmidt, B. P., Schommer, R. A., Smith, R. C., Soderberg, A. M., Spyromilio, J., ... Woudt, P. (2000). Optical spectra of type Ia supernovae at z = 0.46 and z = 1.2. Astrophysical Journal, 544(2 PART 2), L111-L114. https://doi.org/10.1086/317311

@article{49b84fbe3cce4dcba5fdc55279a9c8d3,

title = "Optical spectra of type Ia supernovae at z = 0.46 and z = 1.2",

abstract = "We present optical spectra, obtained with the Keck 10 m telescope, of two high-redshift Type Ia supernovae (SNe Ia) discovered by the High-z Supernova Search Team: SN 1999ff at z = 0.455 and SN 1999fv at z ∼ 1.2, the highest redshift published SN Ia spectrum. Both SNe were at maximum light when the spectra were taken. We compare our high-z spectra with low-z normal and peculiar SNe Ia as well as with SNe Ic, Ib, and II. There are no significant differences between SN 1999ff and normal SNe Ia at low redshift. SN 1999fv appears to be an SN Ia and does not resemble the most peculiar nearby SNe Ia.",

keywords = "Cosmology: observations, Supernovae: general, Supernovae: individual (SN 1999ff, SN 1999fv)",

author = "Coil, {Alison L.} and Thomas Matheson and Filippenko, {Alexei V.} and Leonard, {Douglas C.} and John Tonry and Riess, {Adam G.} and Peter Challis and Alejandro Clocchiatti and Garnavich, {Peter M.} and Hogan, {Craig J.} and Saurabh Jha and Kirshner, {Robert P.} and B. Leibundgut and Phillips, {M. M.} and Schmidt, {Brian P.} and Schommer, {Robert A.} and Smith, {R. Chris} and Soderberg, {Alicia M.} and J. Spyromilio and Christopher Stubbs and Suntzeff, {Nicholas B.} and Patrick Woudt",

note = "Funding Information: This research was supported by NSF grants AST 94-17213 and AST 99-87438 to A. V. F., by an NSF Graduate Research Fellowship to A. L. C., and by NASA grants GO-7505 and GO-8177 to the High-z Supernova Search Team from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555. The Keck Observatory is operated by the California Institute of Technology, The University of California, and NASA. We are grateful to the Keck staff for their assistance with the observations. We thank Ryan Chor-nock and Weidong Li for useful discussions and the referee for valuable comments.",

year = "2000",

month = dec,

day = "1",

doi = "10.1086/317311",

language = "English (US)",

volume = "544",

pages = "L111--L114",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing Ltd.",

number = "2 PART 2",

}

Coil, AL, Matheson, T, Filippenko, AV, Leonard, DC, Tonry, J, Riess, AG, Challis, P, Clocchiatti, A, Garnavich, PM, Hogan, CJ, Jha, S, Kirshner, RP, Leibundgut, B, Phillips, MM, Schmidt, BP, Schommer, RA, Smith, RC, Soderberg, AM, Spyromilio, J, Stubbs, C, Suntzeff, NB & Woudt, P 2000, 'Optical spectra of type Ia supernovae at z = 0.46 and z = 1.2', Astrophysical Journal, vol. 544, no. 2 PART 2, pp. L111-L114. https://doi.org/10.1086/317311

TY - JOUR

T1 - Optical spectra of type Ia supernovae at z = 0.46 and z = 1.2

AU - Coil, Alison L.

AU - Matheson, Thomas

AU - Filippenko, Alexei V.

AU - Leonard, Douglas C.

AU - Tonry, John

AU - Riess, Adam G.

AU - Challis, Peter

AU - Clocchiatti, Alejandro

AU - Garnavich, Peter M.

AU - Hogan, Craig J.

AU - Jha, Saurabh

AU - Kirshner, Robert P.

AU - Leibundgut, B.

AU - Phillips, M. M.

AU - Schmidt, Brian P.

AU - Schommer, Robert A.

AU - Smith, R. Chris

AU - Soderberg, Alicia M.

AU - Spyromilio, J.

AU - Stubbs, Christopher

AU - Suntzeff, Nicholas B.

AU - Woudt, Patrick

N1 - Funding Information: This research was supported by NSF grants AST 94-17213 and AST 99-87438 to A. V. F., by an NSF Graduate Research Fellowship to A. L. C., and by NASA grants GO-7505 and GO-8177 to the High-z Supernova Search Team from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555. The Keck Observatory is operated by the California Institute of Technology, The University of California, and NASA. We are grateful to the Keck staff for their assistance with the observations. We thank Ryan Chor-nock and Weidong Li for useful discussions and the referee for valuable comments.

PY - 2000/12/1

Y1 - 2000/12/1

N2 - We present optical spectra, obtained with the Keck 10 m telescope, of two high-redshift Type Ia supernovae (SNe Ia) discovered by the High-z Supernova Search Team: SN 1999ff at z = 0.455 and SN 1999fv at z ∼ 1.2, the highest redshift published SN Ia spectrum. Both SNe were at maximum light when the spectra were taken. We compare our high-z spectra with low-z normal and peculiar SNe Ia as well as with SNe Ic, Ib, and II. There are no significant differences between SN 1999ff and normal SNe Ia at low redshift. SN 1999fv appears to be an SN Ia and does not resemble the most peculiar nearby SNe Ia.

AB - We present optical spectra, obtained with the Keck 10 m telescope, of two high-redshift Type Ia supernovae (SNe Ia) discovered by the High-z Supernova Search Team: SN 1999ff at z = 0.455 and SN 1999fv at z ∼ 1.2, the highest redshift published SN Ia spectrum. Both SNe were at maximum light when the spectra were taken. We compare our high-z spectra with low-z normal and peculiar SNe Ia as well as with SNe Ic, Ib, and II. There are no significant differences between SN 1999ff and normal SNe Ia at low redshift. SN 1999fv appears to be an SN Ia and does not resemble the most peculiar nearby SNe Ia.

KW - Cosmology: observations

KW - Supernovae: general

KW - Supernovae: individual (SN 1999ff, SN 1999fv)

UR - http://www.scopus.com/inward/record.url?scp=18244429310&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=18244429310&partnerID=8YFLogxK

U2 - 10.1086/317311

DO - 10.1086/317311

M3 - Article

AN - SCOPUS:18244429310

SN - 0004-637X

VL - 544

SP - L111-L114

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2 PART 2

ER -

Optical spectra of type Ia supernovae at z = 0.46 and z = 1.2

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