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Title:
A Survey About Nothing: Monitoring a Million Supergiants for Failed Supernovae
Authors:
Kochanek, Christopher S.; Beacom, John F.; Kistler, Matthew D.; Prieto, José L.; Stanek, Krzysztof Z.; Thompson, Todd A.; Yüksel, Hasan
Affiliation:
AA(Department of Astronomy, The Ohio State University, 140 West 18th Avenue, Columbus, OH 43210; Center for Cosmology and Astroparticle Physics, The Ohio State University, 191 West Woodruff Avenue, Columbus, OH 43210.), AB(Department of Astronomy, The Ohio State University, 140 West 18th Avenue, Columbus, OH 43210; Center for Cosmology and Astroparticle Physics, The Ohio State University, 191 West Woodruff Avenue, Columbus, OH 43210; Department of Physics, The Ohio State University, 191 West Woodruff Avenue, Columbus, OH 43210.), AC(Center for Cosmology and Astroparticle Physics, The Ohio State University, 191 West Woodruff Avenue, Columbus, OH 43210; Department of Physics, The Ohio State University, 191 West Woodruff Avenue, Columbus, OH 43210.), AD(Department of Astronomy, The Ohio State University, 140 West 18th Avenue, Columbus, OH 43210; Center for Cosmology and Astroparticle Physics, The Ohio State University, 191 West Woodruff Avenue, Columbus, OH 43210.), AE(Department of Astronomy, The Ohio State University, 140 West 18th Avenue, Columbus, OH 43210; Center for Cosmology and Astroparticle Physics, The Ohio State University, 191 West Woodruff Avenue, Columbus, OH 43210.), AF(Department of Astronomy, The Ohio State University, 140 West 18th Avenue, Columbus, OH 43210; Center for Cosmology and Astroparticle Physics, The Ohio State University, 191 West Woodruff Avenue, Columbus, OH 43210.), AG(Center for Cosmology and Astroparticle Physics, The Ohio State University, 191 West Woodruff Avenue, Columbus, OH 43210; Department of Physics, The Ohio State University, 191 West Woodruff Avenue, Columbus, OH 43210.)
Publication:
The Astrophysical Journal, Volume 684, Issue 2, pp. 1336-1342. (ApJ Homepage)
Publication Date:
09/2008
Origin:
UCP
Astronomy Keywords:
Stars: Evolution, Stars: Supernovae: General, Surveys
DOI:
10.1086/590053
Bibliographic Code:
2008ApJ...684.1336K

Abstract

Extragalactic transient searches have historically been limited to looking for the appearance of new sources such as supernovae. It is now possible to carry out a new kind of survey that will do the opposite, that is, search for the disappearance of massive stars. This will entail the systematic observation of galaxies within a distance of 10 Mpc in order to watch ~106 supergiants. Reaching this critical number ensures that something will occur yearly, since these massive stars must end their lives with a core collapse within ~10 6 yr. Using deep imaging and image subtraction, it is possible to determine the fates of these stars, whether they end with a bang (supernova) or a whimper (fall out of sight). Such a survey would place completely new limits on the total rate of all core collapses, which is critical for determining the validity of supernova models. It would also determine the properties of supernova progenitors, better characterize poorly understood optical transients (such as η Carina-like mass ejections), find and characterize large numbers of Cepheids, luminous blue variables, and eclipsing binaries, and allow the discovery of any new phenomena that inhabit this relatively unexplored parameter space.
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