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Get Free AccessThis paper presents spectroscopy of supernovae discovered in the first season of the Sloan Digital Sky Survey-II Supernova Survey. This program searches for and measures multi-band light curves of supernovae in the redshift range z = 0.05-0.4, complementing existing surveys at lower and higher redshifts. Our goal is to better characterize the supernova population, with a particular focus on SNe Ia, improving their utility as cosmological distance indicators and as probes of dark energy. Our supernova spectroscopy program features rapid-response observations using telescopes of a range of apertures, and provides confirmation of the supernova and host-galaxy types as well as precise redshifts. We describe here the target identification and prioritization, data reduction, redshift measurement, and classification of 129 SNe Ia, 16 spectroscopically probable SNe Ia, 7 SNe Ib/c, and 11 SNe II from the first season. We also describe our efforts to measure and remove the substantial host galaxy contamination existing in the majority of our SN spectra.
Chen Zheng, Roger W. Romani, M. Šako, J. P. Marriner, Bruce A. Bassett, A. C. Becker, Changsu Choi, David Cinabro, F. DeJongh, D. L. DePoy, B. Dilday, Mamoru Doi, J. Frieman, P. Garnavich, Craig J. Hogan, Jon A. Holtzman, Myungshin Im, Saurabh W. Jha, R. Keßler, K. Konishi, Hubert Lampeitl, J. L. Marshall, D. McGinnis, G. Miknaitis, R. C. Nichol, J. L. Prieto, Adam G. Riess, M. Richmond, Donald P. Schneider, M. Smith, N. Takanashi, Kouichi Tokita, K. van der Heyden, Naoki Yasuda, Roberto J. Assef, John C. Barentine, R. Bender, R. D. Blandford, M. N. Bremer, H. Brewington, C. A. Collins, Arlin Crotts, J. Dembicky, Jason D. Eastman, A. C. Edge, Ed Elson, Michael E. Eyler, Alexei V Filippenko, R. J. Foley, F. Stephan, A. Goobar, Michael Harvanek, U. Hopp, Y. Ihara, S. M. Kahn, William Ketzeback, S. J. Kleinman, W. Kollatschny, J. Krzesiński, G. Leloudas, Daniel C. Long, J. R. Lucey, Elena Malanushenko, Viktor Malanushenko, R. McMillan, Christopher W. Morgan, Tomoki Morokuma, A. Nitta, L. Östman, Kaike Pan, A. K. Romer, Gabrelle Saurage, Katie Schlesinger, Stephanie A. Snedden, J. Sollerman, M. Stritzinger, L. C. Watson, S. Watters, J. C. Wheeler, Donald G. York (2008). FIRST-YEAR SPECTROSCOPY FOR THE SLOAN DIGITAL SKY SURVEY-II SUPERNOVA SURVEY. , 135(5), DOI: https://doi.org/10.1088/0004-6256/135/5/1766.
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Type
Article
Year
2008
Authors
80
Datasets
0
Total Files
0
Language
en
DOI
https://doi.org/10.1088/0004-6256/135/5/1766
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