The Sloan Digital Sky Survey - II: supernova survey: technical summary

Joshua A. Frieman, Bruce A. Bassett, Andrew Becker, Changsu Choi, David Cinabro, Fritz Dejongh, Darren L. Depoy, Ben Dilday, Mamoru Doi, Peter M. Garnavich, Craig J. Hogan, Jon A. Holtzman, Myungshin Im, Saurabh W. Jha, Richard Kessler, Kohki Konishi, Hubert Lampeitl, John P. Marriner, Jennifer L. Marshall, David McGinnisGajus Miknaitis, Robert C. Nichol, Jose Luis Prieto, Adam G. Riess, Michael W. Richmond, Roger W. Romani, Masao Sako, Donald P. Schneider, Mathew Smith, Naohiro Takanashi, Kouichi Tokita, Kurt Van Der Heyden, Naoki Yasuda, Chen Zheng, Jennifer K. Adelman-McCarthy, James Annis, Roberto J. Assef, John C. Barentine, Ralf Bender, Roger D. Blandford, William N. Boroski, Malcolm Bremer, Howard J. Brewington, Chris A. Collins, Arlin Crotts, Jack Dembicky, Jason Eastman, Alastair C. Edge, Edmond M. Edmondson, Edward Elson, Michael E. Eyler, Alexei V. Filippenko, Ryan J. Foley, Stephan Frank, Ariel Goobar, Tina Gueth, James E. Gunn, Michael Harvanek, Ulrich Hopp, Yutaka Ihara, Zelko Ivezic, Steven Kahn, Jared Kaplan, Stephen M. Kent, William Ketzeback, Scott J. Kleinman, Wolfram Kollatschny, Richard G. Kron, Jurek Krzesiński, Dennis Lamenti, Giorgos Leloudas, Huan Lin, Daniel C. Long, John Lucey, Robert H. Lupton, Elena Malanushenko, Viktor Malanushenko, Russet J. McMillan, Javier Mendez, Christopher W. Morgan, Tomoki Morokuma, Atsuko Nitta, Linda Ostman, Kaike Pan, Constance M. Rockosi, A. Kathy Romer, Pilar Ruiz-lapuente, Gabrelle Saurage, Katie Schlesinger, Stephanie A. Snedden, Jesper Sollerman, Chris Stoughton, Maximilian D. Stritzinger, Mark Subbarao, Douglas L. Tucker, Petri Vaisanen, Linda C. Watson, Shannon Watters, J. Craig Wheeler, Brian Yanny, Donald G. York

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Abstract

The Sloan Digital Sky Survey-II (SDSS-II) has embarked on a multi-year project to identify and measure light curves for intermediate-redshift (0.05 < z < 0.35) Type Ia supernovae (SNe Ia) using repeated five-band (ugriz) imaging over an area of 300 sq. deg. The survey region is a stripe 2.5° wide centered on the celestial equator in the Southern Galactic Cap that has been imaged numerous times in earlier years, enabling construction of a deep reference image for the discovery of new objects. Supernova imaging observations are being acquired between September 1 and November 30 of 2005-7. During the first two seasons, each region was imaged on average every five nights. Spectroscopic follow-up observations to determine supernova type and redshift are carried out on a large number of telescopes. In its first two three-month seasons, the survey has discovered and measured light curves for 327 spectroscopically confirmed SNe Ia, 30 probable SNe Ia, 14 confirmed SNe Ib/c, 32 confirmed SNe II, plus a large number of photometrically identified SNe Ia, 94 of which have host-galaxy spectra taken so far. This paper provides an overview of the project and briefly describes the observations completed during the first two seasons of operation.
Original languageEnglish
Pages (from-to)338-347
JournalThe Astronomical Journal
Volume135
Issue number1
Early online date12 Dec 2007
DOIs
Publication statusPublished - Jan 2008

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