A Search for Pulsed Very High-Energy Gamma Rays from Thirteen Young Pulsars in Archival VERITAS Data

A. Archer (1) , W. Benbow (2) , R. Bird (3) , R. Brose (4 , 5) , M. Buchovecky (3) , J. H. Buckley (1) , A. J. Chromey (6)

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W. Cui (7 8) A. Falcone (9) Q. Feng (10) J. P. Finley (7) L. Fortson (11) A. Furniss (12) A. Gent (13) O. Gueta (5) D. Hanna (10) T. Hassan (5) O. Hervet (14) J. Holder (15) G. Hughes (2) T. B. Humensky (16) C. A. Johnson (14) P. Kaaret (17) P. Kar (18) N. Kelley-Hoskins (5) M. Kertzman (19) D. Kieda (18) F. Krennrich (6) S. Kumar (15) M. J. Lang (20) T. T.Y. Lin (10) A. McCann (10) P. Moriarty (20) R. Mukherjee (21) S. O'Brien (22) R. A. Ong (3) A. N. Otte (13) D. Pandel (23) N. Park (24) A. Petrashyk (16) M. Pohl (4 E. Pueschel (5) J. Quinn (22) K. Ragan (10) G. T. Richards (15 13) E. Roache (2) I. Sadeh (5) M. Santander (25) S. S. Scott (14) G. H. Sembroski (7) K. Shahinyan (11) I. Sushch (5) J. Tyler (10) S. P. Wakely (24) A. Weinstein (6) R. M. Wells (6) P. Wilcox (17) A. Wilhelm (4 D. A. Williams (14) T. J Williamson (15) B. Zitzer (10) ((1) Department of Physics Washington University St. Louis MO 63130 USA (2) Fred Lawrence Whipple Observatory Harvard-Smithsonian Center for Astrophysics Amado AZ 85645 (3) Department of Physics Astronomy University of California Los Angeles CA 90095 (4) Institute of Physics University of Potsdam 14476 Potsdam-Golm Germany (5) DESY Platanenallee 6 15738 Zeuthen (6) Department of Physics Iowa State University Ames IA 50011 (7) Department of Physics Purdue University West Lafayette IN 47907 (8) Department of Physics Center for Astrophysics Tsinghua University Beijing 100084 China (9) Department of Astronomy Astrophysics 525 Davey Lab Pennsylvania State University University Park PA 16802 (10) Physics Department McGill University Montreal QC H3A 2T8 Canada (11) School of Physics University of Minnesota Minneapolis MN 55455 (12) Department of Physics California State University - East Bay Hayward CA 94542 (13) School of Physics Center for Relativistic Astrophysics Georgia Institute of Technology 837 State Street NW Atlanta GA 30332-0430 (14) Santa Cruz Institute for Particle Physics Department of Physics Santa Cruz CA 95064 (15) Department of Physics the Bartol Research Institute University of Delaware Newark DE 19716 (16) Physics Department Columbia University New York NY 10027 (17) Department of Physics University of Iowa Van Allen Hall Iowa City IA 52242 (18) Department of Physics University of Utah Salt Lake City UT 84112 (19) Department of Physics DePauw University Greencastle IN 46135-0037 (20) School of Physics National University of Ireland Galway University Road Galway Ireland (21) Department of Physics Barnard College (22) School of Physics University College Dublin Belfield Dublin 4 (23) Department of Physics Grand Valley State University Allendale MI 49401 (24) Enrico Fermi Institute University of Chicago Chicago IL 60637 (25) Department of Physics University of Alabama Tuscaloosa AL 35487 USA)

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classification 🌌 astro-ph.HE

keywords pulsarsdatagamma-raypulsedarchivalemissionfluxgamma

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We conduct a search for periodic emission in the very high-energy gamma-ray band (VHE; E > 100 GeV) from a total of 13 pulsars in an archival VERITAS data set with a total exposure of over 450 hours. The set of pulsars includes many of the brightest young gamma-ray pulsars visible in the Northern Hemisphere. The data analysis resulted in non-detections of pulsed VHE gamma rays from each pulsar. Upper limits on a potential VHE gamma-ray flux are derived at the 95% confidence level above three energy thresholds using two methods. These are the first such searches for pulsed VHE emission from each of the pulsars, and the obtained limits constrain a possible flux component manifesting at VHEs as is seen for the Crab pulsar.

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A Search for Pulsed Very High-Energy Gamma Rays from Thirteen Young Pulsars in Archival VERITAS Data

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