Spectroscopic confirmation of high-redshift supernovae with the ESO VLT

被引:34
作者
Lidman, C
Howell, DA
Folatelli, G
Garavini, G
Nobili, S
Aldering, G
Amanullah, R
Antilogus, P
Astier, P
Blanc, G
Burns, MS
Conley, A
Deustua, SE
Doi, M
Ellis, R
Fabbro, S
Fadeyev, V
Gibbons, R
Goldhaber, G
Goobar, A
Groom, DE
Hook, I
Kashikawa, N
Kim, AG
Knop, RA
Lee, BC
Mendez, J
Morokuma, T
Motohara, K
Nugent, PE
Pain, R
Perlmutter, S
Prasad, V
Quimby, R
Raux, J
Regnault, N
Ruiz-Lapuente, P
Sainton, G
Schaefer, BE
Schahmaneche, K
Smith, E
Spadafora, AL
Stanishev, V
Walton, NA
Wang, L
Wood-Vasey, WM
Yasuda, N
机构
[1] European So Observ, Santiago 19, Chile
[2] EO Lawrence Berkeley Natl Lab, Berkeley, CA USA
[3] Univ Toronto, Dept Astron & Astrophys, Toronto, ON, Canada
[4] Stockholm Univ, S-10691 Stockholm, Sweden
[5] Univ Paris 06, CNRS, LPNHE, IN2P3, Paris, France
[6] Univ Paris 07, CNRS, LPNHE, IN2P3, Paris, France
[7] Osserv Astron Padova, I-35122 Padua, Italy
[8] Colorado Coll, Colorado Springs, CO 80903 USA
[9] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[10] Amer Astronom Soc, Washington, DC USA
[11] Univ Tokyo, Astron Inst, Sch Sci, Tokyo, Japan
[12] CALTECH, Pasadena, CA 91125 USA
[13] IST, CENTRA, Ctr M Astrofis, Lisbon, Portugal
[14] IST, Dept Phys, Lisbon, Portugal
[15] Univ Oxford, Dept Phys, Nucl & Astrophys Lab, Oxford OX1 2JD, England
[16] Natl Astron Observ, Tokyo 1810058, Japan
[17] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA
[18] Isaac Newton Grp, La Palma, Spain
[19] Univ Barcelona, Dept Astron, E-08007 Barcelona, Spain
[20] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA
[21] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England
[22] Univ Tokyo, Inst Cosm Ray Res, Tokyo, Japan
来源
ASTRONOMY & ASTROPHYSICS | 2005年 / 430卷 / 03期
关键词
stars : supernovae : general; cosmology : observations;
D O I
10.1051/0004-6361:20041504
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present VLT FORS1 and FORS2 spectra of 39 candidate high-redshift supernovae that were discovered as part of a cosmological study using type Ia supernovae (SNe Ia) over a wide range of redshifts. From the spectra alone, 20 candidates are spectrally classified as SNe Ia with redshifts ranging from z=0.212 to z=1.181. Of the remaining 19 candidates, 1 might be a type II supernova and 11 exhibit broad supernova-like spectral features and/or have supernova-like light curves. The candidates were discovered in 8 separate ground-based searches. In those searches in which SNe Ia at zsimilar to0.5 were targeted, over 80% of the observed candidates were spectrally classified as SNe Ia. In those searches in which SNe Ia with z>1 were targeted, 4 candidates with z>1 were spectrally classified as SNe Ia and later followed with ground and space based observatories. We present the spectra of all candidates, including those that could not be spectrally classified as supernova.
引用
收藏
页码:843 / 851
页数:9
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