Spectroscopic confirmation of high-redshift supernovae with the ESO VLT

Spectroscopic confirmation of high-redshift supernovae with the ESO VLT
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DOI：
10.1051/0004-6361:20041504
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发表时间：
2004-10
期刊：
Astronomy and Astrophysics
影响因子：
6.5
通讯作者：
C. Lidman;D. Howell;D. Howell;G. Folatelli;G. Garavini;G. Garavini;S. Nobili;S. Nobili;G. Aldering;R. Amanullah;P. Antilogus;P. Astier;G. Blanc;M. S. Burns;A. Conley;A. Conley;S. Deustua;M. Doi;R. Ellis;S. Fabbro;V. Fadeyev;R. Gibbons;G. Goldhaber;G. Goldhaber;A. Goobar;D. Groom;I. Hook;N. Kashikawa;A. Kim;R. Knop;Brian C. Lee;J. Méndez;T. Morokuma;K. Motohara;P. Nugent;R. Pain;S. Perlmutter;S. Perlmutter;V. Prasad;R. Quimby;J. Raux;N. Regnault;N. Regnault;P. Ruíz-Lapuente;G. Sainton;B. E. Schaefer;K. Schahmaneche;E. Smith;A. Spadafora;V. Stanishev;N. Walton;Lifan Wang;W. M. Wood-Vasey;W. M. Wood-Vasey;N. Yasuda
C. Lidman;D. Howell;D. Howell;G. Folatelli;G. Garavini;G. Garavini;S. Nobili;S. Nobili;G. Aldering;R. Amanullah;P. Antilogus;P. Astier;G. Blanc;M. S. Burns;A. Conley;A. Conley;S. Deustua;M. Doi;R. Ellis;S. Fabbro;V. Fadeyev;R. Gibbons;G. Goldhaber;G. Goldhaber;A. Goobar;D. Groom;I. Hook;N. Kashikawa;A. Kim;R. Knop;Brian C. Lee;J. Méndez;T. Morokuma;K. Motohara;P. Nugent;R. Pain;S. Perlmutter;S. Perlmutter;V. Prasad;R. Quimby;J. Raux;N. Regnault;N. Regnault;P. Ruíz-Lapuente;G. Sainton;B. E. Schaefer;K. Schahmaneche;E. Smith;A. Spadafora;V. Stanishev;N. Walton;Lifan Wang;W. M. Wood-Vasey;W. M. Wood-Vasey;N. Yasuda
中科院分区：
物理与天体物理2区
文献类型：
--
作者：
C. Lidman;D. Howell;D. Howell;G. Folatelli;G. Garavini;G. Garavini;S. Nobili;S. Nobili;G. Aldering;R. Amanullah;P. Antilogus;P. Astier;G. Blanc;M. S. Burns;A. Conley;A. Conley;S. Deustua;M. Doi;R. Ellis;S. Fabbro;V. Fadeyev;R. Gibbons;G. Goldhaber;G. Goldhaber;A. Goobar;D. Groom;I. Hook;N. Kashikawa;A. Kim;R. Knop;Brian C. Lee;J. Méndez;T. Morokuma;K. Motohara;P. Nugent;R. Pain;S. Perlmutter;S. Perlmutter;V. Prasad;R. Quimby;J. Raux;N. Regnault;N. Regnault;P. Ruíz-Lapuente;G. Sainton;B. E. Schaefer;K. Schahmaneche;E. Smith;A. Spadafora;V. Stanishev;N. Walton;Lifan Wang;W. M. Wood-Vasey;W. M. Wood-Vasey;N. Yasuda

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我们给出了39颗候选高红移超新星的VLT、FORS1和FORS2光谱，这些光谱是利用Ia型超新星(SNE Ia)在广泛的红移范围内进行的宇宙学研究的一部分。仅从光谱上，就有20个候选者被光谱归类为SneIa，红移范围从z=0.212到z=1.181。在剩下的19个候选者中，1个可能是II型超新星，11个表现出广泛的类似超新星的光谱特征和/或具有类似超新星的光曲线。这些候选人是在8次单独的地面搜索中被发现的。在以z0.5处的SNE Ia为目标的搜索中，超过80%的观察到的候选者被光谱分类为SNE Ia。在那些以具有z&gt；1的SNE Ia为目标的搜索中，4个具有z&gt；1的候选者被光谱归类为SNE Ia，随后是地面和天基天文台。我们介绍了所有候选者的光谱，包括那些不能被光谱归类为超新星的光谱。
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 z {approx} 0.5 were targeted, over 80 percent 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.