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First-year spectroscopy for the Sloan Digital Sky Survey-II Supernova Survey

Zheng, Chen; Romani, Roger W; Sako, Masao; Marriner, Jogn; Bassett, Bruce; Becker, Andrew C; Choi, Changsu; Cinabro, David; DeJongh, Fritz; DePoy, D; Schlesinger, Katharine; Hopp, U

Description

This paper presents spectroscopy of supernovae (SNe) discovered in the first season of the Sloan Digital Sky Survey-II SN Survey. This program searches for and measures multi-band light curves of SNe in the redshift range z = 0.05-0.4, complementing existing surveys at lower and higher redshifts. Our goal is to better characterize the SN population, with a particular focus on SNe Ia, improving their utility as cosmological distance indicators and as probes of dark energy. Our SN spectroscopy...[Show more]

dc.contributor.authorZheng, Chen
dc.contributor.authorRomani, Roger W
dc.contributor.authorSako, Masao
dc.contributor.authorMarriner, Jogn
dc.contributor.authorBassett, Bruce
dc.contributor.authorBecker, Andrew C
dc.contributor.authorChoi, Changsu
dc.contributor.authorCinabro, David
dc.contributor.authorDeJongh, Fritz
dc.contributor.authorDePoy, D
dc.contributor.authorSchlesinger, Katharine
dc.contributor.authorHopp, U
dc.date.accessioned2015-12-13T22:18:03Z
dc.identifier.issn0004-6256
dc.identifier.urihttp://hdl.handle.net/1885/71458
dc.description.abstractThis paper presents spectroscopy of supernovae (SNe) discovered in the first season of the Sloan Digital Sky Survey-II SN Survey. This program searches for and measures multi-band light curves of SNe in the redshift range z = 0.05-0.4, complementing existing surveys at lower and higher redshifts. Our goal is to better characterize the SN population, with a particular focus on SNe Ia, improving their utility as cosmological distance indicators and as probes of dark energy. Our SN spectroscopy program features rapid-response observations using telescopes of a range of apertures, and provides confirmation of the SN 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.
dc.publisherUniversity of Chicago Press
dc.sourceAstronomical Journal
dc.subjectKeywords: Cosmology: observations; Methods: data analysis; Supernovae: general; Surveys; Techniques: spectroscopic
dc.titleFirst-year spectroscopy for the Sloan Digital Sky Survey-II Supernova Survey
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume135
dc.date.issued2008
local.identifier.absfor020106 - High Energy Astrophysics; Cosmic Rays
local.identifier.ariespublicationU3488905xPUB2724
local.type.statusPublished Version
local.contributor.affiliationZheng, Chen, Stanford University
local.contributor.affiliationRomani, Roger W, Stanford University
local.contributor.affiliationSako, Masao, University of Pennsylvania
local.contributor.affiliationMarriner, Jogn, Fermi National Accelerator Laboratory
local.contributor.affiliationBassett, Bruce, University of Cape Town
local.contributor.affiliationBecker, Andrew C, University of Washington
local.contributor.affiliationChoi, Changsu, Seoul National University
local.contributor.affiliationCinabro, David, Wayne State University
local.contributor.affiliationDeJongh, Fritz, Fermi National Accelerator Laboratory
local.contributor.affiliationDePoy, D, Ohio State University
local.contributor.affiliationSchlesinger, Katharine, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationHopp, U, Universitatssternwarte Munchen
local.description.embargo2037-12-31
local.bibliographicCitation.issue5
local.bibliographicCitation.startpage1766
local.bibliographicCitation.lastpage1784
local.identifier.doi10.1088/0004-6256/135/5/1766
dc.date.updated2015-12-11T07:41:06Z
local.identifier.scopusID2-s2.0-50849123014
CollectionsANU Research Publications

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