First-Year Spectroscopy for the SDSS-II Supernova Survey

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This 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 ... continued below

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Zheng, Chen; Romani, Roger W.; Sako, Masao; Marriner, John; Bassett, Bruce; Becker, Andrew et al. March 25, 2008.

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This 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.

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  • Journal Name: Astronomical Journal

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  • Report No.: SLAC-PUB-12994
  • Grant Number: AC02-76SF00515
  • DOI: 10.1088/0004-6256/135/5/1766 | External Link
  • Office of Scientific & Technical Information Report Number: 926190
  • Archival Resource Key: ark:/67531/metadc896614

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  • March 25, 2008

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  • Sept. 27, 2016, 1:39 a.m.

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  • Nov. 28, 2016, 4:35 p.m.

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Zheng, Chen; Romani, Roger W.; Sako, Masao; Marriner, John; Bassett, Bruce; Becker, Andrew et al. First-Year Spectroscopy for the SDSS-II Supernova Survey, article, March 25, 2008; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc896614/: accessed October 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.