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Title: A State Change In The Missing Link Binary Pulsar System Psr J1023+0038

Abstract

We present radio, X-ray, and γ-ray observations which reveal that the binary millisecond pulsar / low-mass X-ray binary transition system PSR J1023+0038 has undergone a transformation in state. Whereas until recently the system harbored a bright millisecond radio pulsar, the radio pulsations at frequencies between 300 to 5000MHz have now become undetectable. Concurrent with this radio disappearance, the γ-ray flux of the system has quintupled. We conclude that, though the radio pulsar is currently not detectable, the pulsar mechanism is still active and the pulsar wind, as well as a newly formed accretion disk, are together providing the necessary conditions to create the γ-ray increase. The system is the first example of a transient, compact, low-mass γ-ray binary and will continue to provide an exceptional test bed for better understanding the formation of millisecond pulsars as well as accretion onto neutron stars in general.

Authors:
 [1];  [2];  [3];  [2]; ORCiD logo [4];  [2];  [5];  [1];  [6];  [7];  [8];  [9]
  1. Univ. of Manchester (United Kingdom)
  2. Netherlands Inst. for Radio Astronomy, Dwingeloo (Netherlands)
  3. Netherlands Inst. for Radio Astronomy, Dwingeloo (Netherlands); Univ. of Amsterdam (Netherlands)
  4. Columbia Univ., New York, NY (United States). Columbia Astrophysics Lab.
  5. McGill Univ., Montreal, QC (Canada)
  6. Netherlands Inst. for Radio Astronomy, Dwingeloo (Netherlands); Leiden Univ. (Netherlands)
  7. California Inst. of Technology (CalTech), Pasadena, CA (United States)
  8. SLAC National Accelerator Lab., Menlo Park, CA (United States); Univ. of Southampton (United Kingdom)
  9. SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1356464
Grant/Contract Number:
AC02-76SF00515
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Astrophysical Journal
Additional Journal Information:
Journal Volume: 790; Journal Issue: 1; Journal ID: ISSN 0004-637X
Publisher:
Institute of Physics (IOP)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

Stappers, B. W., Archibald, A. M., Hessels, J. W. T., Bassa, C. G., Bogdanov, S., Janssen, G. H., Kaspi, V. M., Lyne, A. G., Patruno, A., Tendulkar, S., Hill, A. B., and Glanzman, T. A State Change In The Missing Link Binary Pulsar System Psr J1023+0038. United States: N. p., 2014. Web. doi:10.1088/0004-637X/790/1/39.
Stappers, B. W., Archibald, A. M., Hessels, J. W. T., Bassa, C. G., Bogdanov, S., Janssen, G. H., Kaspi, V. M., Lyne, A. G., Patruno, A., Tendulkar, S., Hill, A. B., & Glanzman, T. A State Change In The Missing Link Binary Pulsar System Psr J1023+0038. United States. doi:10.1088/0004-637X/790/1/39.
Stappers, B. W., Archibald, A. M., Hessels, J. W. T., Bassa, C. G., Bogdanov, S., Janssen, G. H., Kaspi, V. M., Lyne, A. G., Patruno, A., Tendulkar, S., Hill, A. B., and Glanzman, T. Tue . "A State Change In The Missing Link Binary Pulsar System Psr J1023+0038". United States. doi:10.1088/0004-637X/790/1/39. https://www.osti.gov/servlets/purl/1356464.
@article{osti_1356464,
title = {A State Change In The Missing Link Binary Pulsar System Psr J1023+0038},
author = {Stappers, B. W. and Archibald, A. M. and Hessels, J. W. T. and Bassa, C. G. and Bogdanov, S. and Janssen, G. H. and Kaspi, V. M. and Lyne, A. G. and Patruno, A. and Tendulkar, S. and Hill, A. B. and Glanzman, T.},
abstractNote = {We present radio, X-ray, and γ-ray observations which reveal that the binary millisecond pulsar / low-mass X-ray binary transition system PSR J1023+0038 has undergone a transformation in state. Whereas until recently the system harbored a bright millisecond radio pulsar, the radio pulsations at frequencies between 300 to 5000MHz have now become undetectable. Concurrent with this radio disappearance, the γ-ray flux of the system has quintupled. We conclude that, though the radio pulsar is currently not detectable, the pulsar mechanism is still active and the pulsar wind, as well as a newly formed accretion disk, are together providing the necessary conditions to create the γ-ray increase. The system is the first example of a transient, compact, low-mass γ-ray binary and will continue to provide an exceptional test bed for better understanding the formation of millisecond pulsars as well as accretion onto neutron stars in general.},
doi = {10.1088/0004-637X/790/1/39},
journal = {Astrophysical Journal},
number = 1,
volume = 790,
place = {United States},
year = {Tue Jul 01 00:00:00 EDT 2014},
month = {Tue Jul 01 00:00:00 EDT 2014}
}

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