VERITAS Observations of the Unusual Extragalactic Transient Swift J164449.3+573451

E Aliu; T Arlen; T Aune; M Beilicke; W Benbow; M Böttcher; A Bouvier; S. M Bradbury; J. H Buckley; V Bugaev; A Cannon; A Cesarini; L Ciupik; E Collins-Hughes; M. P Connolly; W Cui; R Dickherber; M Errando; A Falcone; J. P Finley; L Fortson; A Furniss; N Galante; D Gall; G. H Gillanders; S Godambe; S Griffin; J Grube; G Gyuk; D Hanna; J Holder; H Huan; G Hughes; C. M Hui; T. B Humensky; P Kaaret; N Karlsson; M Kertzman; D Kieda; H Krawczynski; F Krennrich; A. S Madhavan; G Maier; P Majumdar; S McArthur; A McCann; P Moriarty; R Mukherjee; R. A Ong; M Orr; A. N Otte; N Park; J. S Perkins; A Pichel; M Pohl; H Prokoph; J Quinn; K Ragan; L. C Reyes; P. T Reynolds; E Roache; H. J Rose; J Ruppel; D. B Saxon; M Schroedter; G. H Sembroski; C Skole; A. W Smith; D Staszak; G Tešić; M Theiling; S Thibadeau; K Tsurusaki; J Tyler; A Varlotta; S Vincent; M Vivier; S. P Wakely; J. E Ward; A Weinstein; T Weisgarber; D. A Williams

doi:10.1088/2041-8205/738/2/L30

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VERITAS Observations of the Unusual Extragalactic Transient Swift J164449.3+573451

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VERITAS Observations of the Unusual Extragalactic Transient Swift J164449.3+573451

E Aliu, T Arlen, T Aune, M Beilicke, W Benbow, M Böttcher, A Bouvier, S. M Bradbury, J. H Buckley, V Bugaev, …

Astrophysical journal. Letters, Vol.738(2), L30

07/08/2011

DOI: 10.1088/2041-8205/738/2/L30

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Abstract

We report on very high energy (>100 GeV) gamma-ray observations of Swift J164449.3+573451, an unusual transient object first detected by the Swift Observatory and later detected by multiple radio, optical, and X-ray observatories. A total exposure of 28 hr was obtained on Swift J164449.3+573451 with the Very Energetic Radiation Imaging Telescope Array System (VERITAS) during 2011 March 28–April 15. We do not detect the source and place a differential upper limit on the emission at 500 GeV during these observations of 1.4 × 10−12 erg cm−2 s−1 (99% confidence level). We also present time-resolved upper limits and use a flux limit averaged over the X-ray flaring period to constrain various emission scenarios that can accommodate both the radio-through-X-ray emission detected from the source and the lack of detection by VERITAS.

Physics - High Energy Astrophysical Phenomena

Details

Title: Subtitle: VERITAS Observations of the Unusual Extragalactic Transient Swift J164449.3+573451
Creators: E Aliu - Columbia University
T Arlen - University of California, Los Angeles
T Aune - Santa Cruz Institute for Particle Physics
M Beilicke - Washington University in St. Louis
W Benbow - Harvard University
M Böttcher - Ohio University
A Bouvier - Santa Cruz Institute for Particle Physics
S. M Bradbury - University of Leeds
J. H Buckley - Washington University in St. Louis
V Bugaev - Washington University in St. Louis
A Cannon - University College Dublin
A Cesarini - Ollscoil na Gaillimhe – University of Galway
L Ciupik - Adler Planetarium
E Collins-Hughes
M. P Connolly - Ollscoil na Gaillimhe – University of Galway
W Cui - Purdue University West Lafayette
R Dickherber - Washington University in St. Louis
M Errando - Columbia University
A Falcone - Pennsylvania State University
J. P Finley - Purdue University West Lafayette
L Fortson - University of Minnesota
A Furniss - Santa Cruz Institute for Particle Physics
N Galante - Harvard University
D Gall - University of Iowa
G. H Gillanders - Ollscoil na Gaillimhe – University of Galway
S Godambe - University of Utah
S Griffin - McGill University
J Grube - Adler Planetarium
G Gyuk - Adler Planetarium
D Hanna - McGill University
J Holder - University of Delaware
H Huan - University of Chicago
G Hughes
C. M Hui - University of Utah
T. B Humensky - University of Chicago
P Kaaret - University of Iowa
N Karlsson - University of Minnesota
M Kertzman - DePauw University
D Kieda - University of Utah
H Krawczynski - Washington University in St. Louis
F Krennrich - Iowa State University
A. S Madhavan - Iowa State University
G Maier
P Majumdar - University of California, Los Angeles
S McArthur - Washington University in St. Louis
A McCann - McGill University
P Moriarty - Galway-Mayo Institute of Technology
R Mukherjee - Columbia University
R. A Ong - University of California, Los Angeles
M Orr - Iowa State University
A. N Otte - Santa Cruz Institute for Particle Physics
N Park - University of Chicago
J. S Perkins - Harvard University
A Pichel
M Pohl - University of Potsdam
H Prokoph
J Quinn - University College Dublin
K Ragan - McGill University
L. C Reyes - University of Chicago
P. T Reynolds - Cork Institute of Technology
E Roache - Harvard University
H. J Rose - University of Leeds
J Ruppel - University of Potsdam
D. B Saxon - University of Delaware
M Schroedter - Harvard University
G. H Sembroski - Purdue University West Lafayette
C Skole
A. W Smith - Argonne National Laboratory
D Staszak - McGill University
G Tešić - McGill University
M Theiling - Harvard University
S Thibadeau - Washington University in St. Louis
K Tsurusaki - University of Iowa
J Tyler - McGill University
A Varlotta - Purdue University West Lafayette
S Vincent - University of Utah
M Vivier - University of Delaware
S. P Wakely - University of Chicago
J. E Ward - University College Dublin
A Weinstein - University of California, Los Angeles
T Weisgarber - University of Chicago
D. A Williams - Santa Cruz Institute for Particle Physics
Resource Type: Journal article
Publication Details: Astrophysical journal. Letters, Vol.738(2), L30
DOI: 10.1088/2041-8205/738/2/L30
ISSN: 2041-8205
eISSN: 2041-8213
Publisher: The American Astronomical Society
Language: English
Date published: 07/08/2011
Academic Unit: Physics and Astronomy
Record Identifier: 9984199699902771

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