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A SEARCH FOR VERY HIGH ENERGY GAMMA RAYS FROM THE MISSING LINK BINARY PULSAR J1023+0038 WITH VERITAS

  • E. Aliu
  • , S. Archambault
  • , A. Archer
  • , W. Benbow
  • , R. Bird
  • , J. Biteau
  • , M. Buchovecky
  • , J. H. Buckley
  • , V. Bugaev
  • , K. L. Byrum
  • , J. V. Cardenzana
  • , M. Cerruti
  • , X. Chen
  • , L. Ciupik
  • , M. P. Connolly
  • , W. Cui
  • , H. J. Dickinson
  • , J. D. Eisch
  • , A. D. Falcone
  • , Q. Feng
  • J. P. Finley, H. Fleischhack, A. Flinders, P. Fortin, L. F. Fortson, A. Furniss, G. H. Gillanders, S. Griffin, J. Grube, G. Gyuk, M. Hütten, N. Håkansson, J. Holder, T. B. Humensky, C. A. Johnson, P. Kaaret, P. Kar, N. Kelley-Hoskins, M. Kertzman, D. B. Kieda, M. Krause, Mark Lang, A. Loo, G. Maier, S. McArthur, A. J. McCann, K. Meagher, Patrick Moriarty, R. Mukherjee, T. Nguyen, D. Nieto, A. O'Faoláin De Bhróithe, R. A. Ong, A. N. Otte, D. Pandel, N. Park, V. Pelassa, A. Petrashyk, M. Pohl, A. Popkow, E. Pueschel, J. Quinn, K. Ragan, P. T. Reynolds, G. T. Richards, E. Roache, C. B. Rulten, M. Santander, G. H. Sembroski, K. Shahinyan, A. W. Smith, D. Staszak, I. Telezhinsky, J. V. Tucci, J. Tyler, A. Varlotta, S. Vincent, S. P. Wakely, O. M. Weiner, A. Weinstein, A. Wilhelm, D. A. Williams, B. Zitzer, M. Chernyakova, M. S. E. Roberts
  • Barnard College
  • McGill University
  • Washington University in St. Louis
  • Harvard & Smithsonian
  • University College Dublin
  • Santa Cruz Institute for Particle Physics
  • University of California, Los Angeles
  • Argonne National Laboratory
  • Iowa State University
  • University of Potsdam
  • DESY
  • Adler Planetarium
  • University of Galway
  • Purdue University
  • Methodology Center at Penn State
  • University of Utah
  • University of Minnesota
  • California State University, East Bay
  • The Bartol Research Institute
  • Columbia University
  • University of Iowa
  • DePauw University
  • Georgia Institute of Technology
  • Grand Valley State University
  • University of Chicago
  • South Campus
  • University of Maryland, College Park
  • Dublin City University
  • Dublin Institute for Advanced Studies
  • New York University Abu Dhabi
  • Eureka Scientific, Inc.

Research output: Contribution to a Journal (Peer & Non Peer)Articlepeer-review

7 Citations (Scopus)

Abstract

The binary millisecond radio pulsar PSR J1023+0038 exhibits many characteristics similar to the gamma-ray binary system PSR B1259-63 LS 2883, making it an ideal candidate for the study of high-energy nonthermal emission. It has been the subject of multiwavelength campaigns following the disappearance of the pulsed radio emission in 2013 June, which revealed the appearance of an accretion disk around the neutron star. We present the results of very high energy (VHE) gamma-ray observations carried out by the Very Energetic Radiation Imaging Telescope Array System before and after this change of state. Searches for steady and pulsed emission of both data sets yield no significant gamma-ray signal above 100 GeV, and upper limits are given for both a steady and pulsed gamma-ray flux. These upper limits are used to constrain the magnetic field strength in the shock region of the PSR J1023+0038 system. Assuming that VHE gamma rays are produced via an inverse Compton mechanism in the shock region, we constrain the shock magnetic field to be greater than similar to 2 G before the disappearance of the radio pulsar and greater than similar to 10 G afterward.
Original languageEnglish (Ireland)
Article number193
JournalAstrophysical Journal
Volume831
Issue number2
DOIs
Publication statusPublished - 1 Nov 2016

Keywords

  • binaries: general
  • gamma rays: general
  • pulsars: general
  • pulsars: individual (PSR J1023+0038)

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