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High-Energy Electromagnetic Offline Follow-Up of Ligo-Virgo Gravitational-Wave Binary Coalescence Candidate EventsWe present two different search methods for electromagnetic counterparts to gravitational-wave (GW) events from ground-based detectors using archival NASA high-energy data from the Fermi Gamma-ray Burst Monitor (GBM) and RXTE All-sky Monitor (ASM) instruments. To demonstrate the methods, we use a limited number of representative GW background noise events produced by a search for binary neutron star coalescence over the last two months of the LIGO-Virgo S6/VSR3 joint science run. Time and sky location provided by the GW data trigger a targeted search in the high-energy photon data. We use two custom pipelines: one to search for prompt gamma-ray counterparts in GBM, and the other to search for a variety of X-ray afterglow model signals in ASM. We measure the efficiency of the joint pipelines to weak gamma-ray burst counterparts, and a family of model X-ray afterglows. By requiring a detectable signal in either electromagnetic instrument coincident with a GW event, we are able to reject a large majority of GW candidates. This reduces the signal-to-noise ratio of the loudest surviving GW background event by around 15-20 percent.
Document ID
20150023417
Document Type
Reprint (Version printed in journal)
Authors
Blackburn, L. (Maryland Univ. College Park, MD, United States)
Briggs, M. S. (Alabama Univ. Huntsville, AL, United States)
Camp, J. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Christensen, N. (Carleton Coll. Northfield, MN, United States)
Connaughton, V. (Alabama Univ. Huntsville, AL, United States)
Jenke, P. (Alabama Univ. Huntsville, AL, United States)
Remillard, R. A. (Massachusetts Inst. of Tech. Cambridge, MA, United States)
Veitch, J. (Birmingham Univ. United Kingdom)
Date Acquired
December 18, 2015
Publication Date
March 5, 2015
Publication Information
Publication: The Astrophysical Journal Supplement Series
Volume: 217
Issue: 1
Subject Category
Astrophysics
Astronomy
Report/Patent Number
GSFC-E-DAA-TN28182
Funding Number(s)
CONTRACT_GRANT: STFC-ST/K005014/1
CONTRACT_GRANT: NSF-PHY-1204371
CONTRACT_GRANT: NNG06EO90A
Distribution Limits
Public
Copyright
Other
Keywords
gamma-ray burst: general
gravitational waves