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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
The sloan digital Sky Survey-II Supernova Survey: Search algorithm and follow-up observations
Astronomical Journal, Volume 135, No. 1, Year 2008
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Description
The Sloan Digital Sky Survey-II Supernova Survey has identified a large number of new transient sources in a 300 deg2 region along the celestial equator during its first two seasons of a three-season campaign. Multi-band (ugriz) light curves were measured for most of the sources, which include solar system objects, galactic variable stars, active galactic nuclei, supernovae (SNe), and other astronomical transients. The imaging survey is augmented by an extensive spectroscopic follow-up program to identify SNe, measure their redshifts, and study the physical conditions of the explosions and their environment through spectroscopic diagnostics. During the survey, light curves are rapidly evaluated to provide an initial photometric type of the SNe, and a selected sample of sources are targeted for spectroscopic observations. In the first two seasons, 476 sources were selected for spectroscopic observations, of which 403 were identified as SNe. For the type Ia SNe, the main driver for the survey, our photometric typing and targeting efficiency is 90%. Only 6% of the photometric SN Ia candidates were spectroscopically classified as non-SN Ia instead, and the remaining 4% resulted in low signal-to-noise, unclassified spectra. This paper describes the search algorithm and the software, and the real-time processing of the SDSS imaging data. We also present the details of the supernova candidate selection procedures and strategies for follow-up spectroscopic and imaging observations of the discovered sources. © 2008. The American Astronomical Society. All rights reserved.
Authors & Co-Authors
Sako, Masao
United States, Philadelphia
University of Pennsylvania
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Bassett, Bruce A.C.C.
South Africa, Cape Town
University of Cape Town
South Africa, Cape Town
South African Astronomical Observatory
Becker, Andrew C.
United States, Seattle
University of Washington
Cinabro, David A.
United States, Detroit
Wayne State University
Dejongh, Fritz
United States, Batavia
Fermi National Accelerator Laboratory
DePoy, Darren L.
United States, Columbus
The Ohio State University
Dilday, Benjamin
United States, Chicago
The Kavli Institute for Cosmological Physics
United States, Chicago
The University of Chicago
Doi, Mamoru
Japan, Tokyo
The University of Tokyo
Frieman, Joshua A.
United States, Batavia
Fermi National Accelerator Laboratory
United States, Chicago
The Kavli Institute for Cosmological Physics
United States, Chicago
The University of Chicago
Garnavich, Peter M.
United States, Notre Dame
University of Notre Dame
Hogan, Craig J.
United States, Seattle
University of Washington
Holtzman, Jon A.
United States, Las Cruces
New Mexico State University
Jha, Saurabh W.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
Kessler, Richard S.
United States, Chicago
The Kavli Institute for Cosmological Physics
United States, Chicago
The Enrico Fermi Institute
Konishi, Kohki
Japan, Tokyo
The University of Tokyo
Lampeitl, Hubert
United States, Baltimore
Space Telescope Science Institute
Marriner, John P.
United States, Batavia
Fermi National Accelerator Laboratory
Miknaitis, Gajus
United States, Batavia
Fermi National Accelerator Laboratory
Nichol, Robert C.
United Kingdom, Portsmouth
University of Portsmouth
Prieto, José Luis
United States, Columbus
The Ohio State University
Riess, Adam G.
United States, Baltimore
Space Telescope Science Institute
United States, Baltimore
Johns Hopkins University
Richmond, Michael W.
United States, Rochester
Rochester Institute of Technology
Romani, Roger W.R.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
United States, Palo Alto
Stanford University
P. Schneider, Donald P.
United States, University Park
Pennsylvania State University
Smith, Matthew W.L.
United Kingdom, Portsmouth
University of Portsmouth
SubbaRao, Mark U.
United States, Chicago
The University of Chicago
Takanashi, Naohiro
Japan, Tokyo
The University of Tokyo
Tokita, Kouichi
Japan, Tokyo
The University of Tokyo
van der Heyden, Kurt J.
South Africa, Cape Town
South African Astronomical Observatory
Yasuda, Naoki
Japan, Tokyo
The University of Tokyo
Zheng, C.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
United States, Palo Alto
Stanford University
Barentine, John C.
United States, Austin
The University of Texas at Austin
United States, Sunspot
Apache Point Observatory
Brewington, Howard J.
United States, Sunspot
Apache Point Observatory
Choi, Changsu
South Korea, Seoul
Seoul National University
Dembicky, Jack
United States, Sunspot
Apache Point Observatory
Harnavek, Michael
United States, Sunspot
Apache Point Observatory
Ihara, Yutaka
Japan, Tokyo
The University of Tokyo
Im, Myungshin
South Korea, Seoul
Seoul National University
Ketzeback, William
United States, Sunspot
Apache Point Observatory
Kleinman, Scott J.
United States, Sunspot
Apache Point Observatory
Japan, Mitaka
National Institutes of Natural Sciences - National Astronomical Observatory of Japan
Krzesiński, Jurek
United States, Sunspot
Apache Point Observatory
Poland, Krakow
Uniwersytet Pedagogiczny Im. Komisji Edukacji Narodowej
Long, Daniel C.
United States, Sunspot
Apache Point Observatory
Malanushenko, Elena
United States, Sunspot
Apache Point Observatory
Malanushenko, Viktor P.
United States, Sunspot
Apache Point Observatory
McMillan, Russet J.
United States, Sunspot
Apache Point Observatory
Morokuma, Tomoki
Japan, Tokyo
The University of Tokyo
Japan, Mitaka
National Institutes of Natural Sciences - National Astronomical Observatory of Japan
Nitta, Atsuko
United States, Sunspot
Apache Point Observatory
United States, Hilo
Gemini Observatory
Pan, Kaike
United States, Sunspot
Apache Point Observatory
Saurage, Gabrelle
United States, Sunspot
Apache Point Observatory
Snedden, Stephanie A.
United States, Sunspot
Apache Point Observatory
Statistics
Citations: 192
Authors: 50
Affiliations: 26
Identifiers
Doi:
10.1088/0004-6256/135/1/348
ISSN:
00046256
Study Design
Cross Sectional Study
Cohort Study
Study Approach
Quantitative