EXCEPTIONALLY BRIGHT TEV FLARES FROM THE BINARY LS I+61 degrees 303

S. Archambault; A. Archer; T. Aune; A. Barnacka; W. Benbow; R. Bird; M. Buchovecky; J. H. Buckley; V. Bugaev; K. Byrum; J. V. Cardenzana; M. Cerruti; X. Chen; L. Ciupik; E. Collins-Hughes; M. P. Connolly; W. Cui; H. J. Dickinson; J. Dumm; J. D. Eisch; A. Falcone; Q. Feng; J. P. Finley; H. Fleischhack; A. Flinders; P. Fortin; L. Fortson; A. Furniss; G. H. Gillanders; S. Griffin; J. Grube; G. Gyuk; M. Huetten; N. Hakansson; D. Hanna; J. Holder; T. B. Humensky; C. A. Johnson; P. Kaaret; P. Kar; N. Kelley-Hoskins; M. Kertzman; Y. Khassen; D. Kieda; M. Krause; F. Krennrich; S. Kumar; M. J. Lang; G. Maier; S. McArthur; A. McCann; K. Meagher; J. Millis; P. Moriarty; R. Mukherjee; D. Nieto; S. O'Brien; A. O'Faolain de Bhroithe; R. A. Ong; A. N. Otte; D. Pandel; N. Park; V. Pelassa; M. Pohl; A. Popkow; E. Pueschel; J. Quinn; K. Ragan; P. T. Reynolds; G. T. Richards; E. Roache; J. Rousselle; C. Rulten; M. Santander; G. H. Sembroski; K. Shahinyan; A. W. Smith; D. Staszak; I. Telezhinsky; J. V. Tucci; J. Tyler; S. Vincent; S. P. Wakely; O. M. Weiner; A. Weinstein; A. Wilhelm; D. A. Williams; B. Zitzer

doi:10.3847/2041-8205/817/1/L7

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EXCEPTIONALLY BRIGHT TEV FLARES FROM THE BINARY LS I+61 degrees 303

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EXCEPTIONALLY BRIGHT TEV FLARES FROM THE BINARY LS I+61 degrees 303

S. Archambault, A. Archer, T. Aune, A. Barnacka, W. Benbow, R. Bird, M. Buchovecky, J. H. Buckley, V. Bugaev, K. Byrum, …

Astrophysical journal. Letters, v 817(1)

20 Jan 2016

DOI: https://doi.org/10.3847/2041-8205/817/1/L7

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Abstract

Astronomy & Astrophysics

Physical Sciences

Science & Technology

The TeV binary system LS I +61 degrees 303 is known for its regular, non-thermal emission pattern that traces the orbital period of the compact object in its 26.5 day orbit around its B0 Ve star companion. The system typically presents elevated TeV emission around apastron passage with flux levels between 5% and 15% of the steady flux from the Crab Nebula (> 300 GeV). In this article, VERITAS observations of LS I + 61 degrees. 303 taken in late 2014 are presented, during which bright TeV flares around apastron at flux levels peaking above 30% of the Crab Nebula flux were detected. This is the brightest such activity from this source ever seen in the TeV regime. The strong outbursts have rise and fall times of less than a day. The short timescale of the flares, in conjunction with the observation of 10 TeV photons from LS I + 61 degrees 303 during the flares, provides constraints on the properties of the accelerator in the source.

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Title: EXCEPTIONALLY BRIGHT TEV FLARES FROM THE BINARY LS I+61 degrees 303
Creators: S. Archambault - McGill University
A. Archer - Washington University in St. Louis
T. Aune - University of California, Los Angeles
A. Barnacka - Harvard University
W. Benbow - Harvard University
R. Bird - University College Dublin
M. Buchovecky - University of California, Los Angeles
J. H. Buckley - Washington University in St. Louis
V. Bugaev - Washington University in St. Louis
K. Byrum - Argonne National Laboratory
J. V. Cardenzana - Iowa State University
M. Cerruti - Harvard University
X. Chen - University of Potsdam
L. Ciupik - Adler Planetarium
E. Collins-Hughes - University College Dublin
M. P. Connolly - National University of Ireland, Galway
W. Cui - Purdue University West Lafayette
H. J. Dickinson - Iowa State University
J. Dumm - University of Minnesota
J. D. Eisch - Iowa State University
A. Falcone - Pennsylvania State University
Q. Feng - Purdue University West Lafayette
J. P. Finley - Purdue University West Lafayette
H. Fleischhack - DESY, Platanenallee 6, D-15738 Zeuthen, Germany
A. Flinders - University of Utah
P. Fortin - Harvard University
L. Fortson - University of Minnesota
A. Furniss - California State University, East Bay
G. H. Gillanders - National University of Ireland, Galway
S. Griffin - McGill University
J. Grube - Adler Planetarium
G. Gyuk - Adler Planetarium
M. Huetten - DESY, Platanenallee 6, D-15738 Zeuthen, Germany
N. Hakansson - University of Potsdam
D. Hanna - McGill University
J. Holder - University of Delaware
T. B. Humensky - Columbia University
C. A. Johnson - Santa Cruz Institute for Particle Physics
P. Kaaret - University of Iowa
P. Kar - University of Utah
N. Kelley-Hoskins - DESY, Platanenallee 6, D-15738 Zeuthen, Germany
M. Kertzman - DePauw University
Y. Khassen - University College Dublin
D. Kieda - University of Utah
M. Krause - DESY, Platanenallee 6, D-15738 Zeuthen, Germany
F. Krennrich - Iowa State University
S. Kumar - University of Delaware
M. J. Lang - National University of Ireland, Galway
G. Maier - DESY, Platanenallee 6, D-15738 Zeuthen, Germany
S. McArthur - Purdue University West Lafayette
A. McCann - McGill University
K. Meagher - Georgia Institute of Technology
J. Millis - Anderson University - Indiana
P. Moriarty - National University of Ireland, Galway
R. Mukherjee - Columbia University
D. Nieto - Columbia University
S. O'Brien - University College Dublin
A. O'Faolain de Bhroithe - DESY, Platanenallee 6, D-15738 Zeuthen, Germany
R. A. Ong - University of California, Los Angeles
A. N. Otte - Georgia Institute of Technology
D. Pandel - Grand Valley State University
N. Park - University of Chicago
V. Pelassa - Harvard University
M. Pohl - University of Potsdam
A. Popkow - University of California, Los Angeles
E. Pueschel - University College Dublin
J. Quinn - University College Dublin
K. Ragan - McGill University
P. T. Reynolds - Cork Institute of Technology
G. T. Richards - Georgia Institute of Technology
E. Roache - Harvard University
J. Rousselle - University of California, Los Angeles
C. Rulten - University of Minnesota
M. Santander - Columbia University
G. H. Sembroski - Purdue University West Lafayette
K. Shahinyan - University of Minnesota
A. W. Smith - University of Maryland, College Park
D. Staszak - McGill University
I. Telezhinsky - University of Potsdam
J. V. Tucci - Purdue University West Lafayette
J. Tyler - McGill University
S. Vincent - DESY, Platanenallee 6, D-15738 Zeuthen, Germany
S. P. Wakely - University of Chicago
O. M. Weiner - Columbia University
A. Weinstein - Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA
A. Wilhelm - University of Potsdam
D. A. Williams - Santa Cruz Institute for Particle Physics
B. Zitzer - Argonne National Laboratory
Publication Details: Astrophysical journal. Letters, v 817(1)
Publisher: Iop Publishing Ltd
Number of pages: 6
Grant note: 1505228 / Division Of Physics; National Science Foundation (NSF); NSF - Directorate for Mathematical & Physical Sciences (MPS) NSERC in Canada; Natural Sciences and Engineering Research Council of Canada (NSERC) U.S. Department of Energy Office of Science; United States Department of Energy (DOE) NNH13ZDA001N / Fermi Cycle 7 Guest Investigator Program 1307311 / Direct For Mathematical & Physical Scien; National Science Foundation (NSF); NSF - Directorate for Mathematical & Physical Sciences (MPS) Helmholtz Association Smithsonian Institution U.S. National Science Foundation; National Science Foundation (NSF)
Resource Type: Journal article
Language: English
Academic Unit: Physics
Web of Science ID: WOS:000369370900007
Scopus ID: 2-s2.0-84955309352
Other Identifier: 991019201374804721

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Collaboration types: Domestic collaboration; International collaboration
Web of Science research areas: Astronomy & Astrophysics

EXCEPTIONALLY BRIGHT TEV FLARES FROM THE BINARY LS I+61 degrees 303

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