First-Year spectroscopy for the SDSS-II Supernova Survey
Date
2008-05Author
Zheng, Chen
Romani, Roger
Sako, Masao
Marriner, John
Bassett, Bruce
Becker, Andrew
Choi, Changsu
Cinabro, David
DeJongh, Fritz
Depoy, Darren
Dilday, Ben
Doi, Mamoru
Frieman, Joshua
Garnavich, Peter
Hogan, Craig
Holtzman, Jon
Im, Myungshin
Jha, Saurabh
Kessler, Richard
Konishi, Kohki
Lampeitl, Hubert
Marshall, Jennifer
McGinnis, David
Miknaitis, Gajus
Nichol, Robert
Preito, Jose
Riess, Adam
Richmond, Michael
Schneider, Donald
Smith, Matthew
Takanashi, Naohiro
Tokita, Kouichi
van der Heyden, Kurt
Yasuda, Naoki
Assef, Roberto
Barentine, John
Bender, Ralf
Blandford, Roger
Bremer, Malcolm
Brewington, Howard
Collins, Chris
Crotts, Arlin
Dembicky, Jack
Eastman, Jason
Edge, Alastair
Elson, Ed
Eyler, Michael
Filippenko, Alexei
Foley, Ryan
Frank, Stephan
Goobar, Ariel
Harvanek, Michael
Hopp, Ulrich
Ihara, Yutaka
Kahn, Steven
Ketzeback, William
Kleinman, Scott
Kollatschny, Wolfram
Krzesinski, Jurek
Leloudas, Giorgos
Long, Daniel
Lucey, John
Malanushenko, Elena
Malanushenko, Viktor
McMillan, Russet
Morgan, Christopher
Morokuma, Tomoki
Nitta, Atsuko
Ostman, Linda
Pan, Kaike
Romer, Kathy
Saurage, Gabrelle
Schlesinger, Katie
Snedden, Stephanie
Sollerman, Jesper
Stritzinger, Maximilian
Watson, Linda
Watters, Shannon
Wheeler, Craig
York, Donald
Metadata
Show full item recordAbstract
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.