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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
THE TIME DOMAIN SPECTROSCOPIC SURVEY: VARIABLE SELECTION and ANTICIPATED RESULTS
Astrophysical Journal, Volume 806, No. 2, Article 244, Year 2015
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Description
We present the selection algorithm and anticipated results for the Time Domain Spectroscopic Survey (TDSS). TDSS is an Sloan Digital Sky Survey (SDSS)-IV Extended Baryon Oscillation Spectroscopic Survey (eBOSS) subproject that will provide initial identification spectra of approximately 220,000 luminosity-variable objects (variable stars and active galactic nuclei across 7500 deg2 selected from a combination of SDSS and multi-epoch Pan-STARRS1 photometry. TDSS will be the largest spectroscopic survey to explicitly target variable objects, avoiding pre-selection on the basis of colors or detailed modeling of specific variability characteristics. Kernel Density Estimate analysis of our target population performed on SDSS Stripe 82 data suggests our target sample will be 95% pure (meaning 95% of objects we select have genuine luminosity variability of a few magnitudes or more). Our final spectroscopic sample will contain roughly 135,000 quasars and 85,000 stellar variables, approximately 4000 of which will be RR Lyrae stars which may be used as outer Milky Way probes. The variability-selected quasar population has a smoother redshift distribution than a color-selected sample, and variability measurements similar to those we develop here may be used to make more uniform quasar samples in large surveys. The stellar variable targets are distributed fairly uniformly across color space, indicating that TDSS will obtain spectra for a wide variety of stellar variables including pulsating variables, stars with significant chromospheric activity, cataclysmic variables, and eclipsing binaries. TDSS will serve as a pathfinder mission to identify and characterize the multitude of variable objects that will be detected photometrically in even larger variability surveys such as Large Synoptic Survey Telescope. © 2015. The American Astronomical Society. All rights reserved.
Authors & Co-Authors
Morganson, Eric P.
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
Green, Paul J.
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
Anderson, Scott F.
United States, Seattle
University of Washington
Myers, Adam D.
United States, Laramie
University of Wyoming
Eracleous, Michael C.
United States, University Park
Pennsylvania State University
Kelly, Brandon C.
United States, Santa Barbara
University of California, Santa Barbara
Badenes, Carles
United States, Pittsburgh
University of Pittsburgh
Blanton, Michael R.
United States, New York
New York University
Bershady, Matthew A.
United States, Madison
University of Wisconsin-madison
Borissova, Jura
Chile, Santiago
Instituto Milenio de Astrofísica
Brandt, William Nielsen
United States, University Park
Pennsylvania State University
Burgett, William S.
Unknown Affiliation
Chambers, Kenneth C.
United States, Honolulu
University of Hawaiʻi at Mānoa
Davenport, James R.A.
United States, Seattle
University of Washington
Flewelling, Heather A.
United States, Honolulu
University of Hawaiʻi at Mānoa
Garnavich, Peter M.
United States, Notre Dame
University of Notre Dame
Isler, Jedidah C.
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
United States, Syracuse
Syracuse University
Kaiser, Nicholas
Unknown Affiliation
Kinemuchi, Karen
United States, Sunspot
Apache Point Observatory
Kudritzki, Rolf Peter
United States, Honolulu
University of Hawaiʻi at Mānoa
Metcalfe, Nigel
United States, Honolulu
University of Hawaiʻi at Mānoa
Poleski, Radoslaw
United States, Columbus
The Ohio State University
Price, Paul A.
United States, Princeton
Princeton University
Salvato, Mara
Germany, Garching Bei Munchen
Max Planck Institute for Extraterrestrial Physics
Shanks, Tom
United Kingdom, Durham
Durham University
Schlafly, Edward F.
Germany, Heidelberg
Max Planck Institute for Astronomy
P. Schneider, Donald P.
United States, University Park
Pennsylvania State University
Shen, Yue
United States, Pasadena
Carnegie Observatories
China, Beijing
Peking University
Stassun, Keivan Guadalupe
United States, Nashville
Vanderbilt University
Tonry, John L.
United States, Honolulu
University of Hawaiʻi at Mānoa
Walter, Fabian W.
Germany, Heidelberg
Max Planck Institute for Astronomy
Waters, Christopher Z.
United States, Honolulu
University of Hawaiʻi at Mānoa
Statistics
Citations: 49
Authors: 32
Affiliations: 22
Identifiers
Doi:
10.1088/0004-637X/806/2/244
ISSN:
0004637X
Study Design
Cross Sectional Study
Phenomenological Study
Study Approach
Quantitative