CaltechAUTHORS
Published January 20, 2020 | Version Accepted Version + Published
Journal Article Open

Probing the Emission States of PSR J1107−5907

Creators

  • 1. ROR icon Xinjiang Astronomical Observatory
  • 2. ROR icon Chinese Academy of Sciences
  • 3. ROR icon Astronomy and Space
  • 4. ROR icon National Astronomical Observatories
  • 5. ROR icon United States Naval Research Laboratory
  • 6. ROR icon Swinburne University of Technology
  • 7. ROR icon ARC Centre of Excellence for Gravitational Wave Discovery
  • 8. ROR icon California Institute of Technology
  • 9. ROR icon University of KwaZulu-Natal
  • 10. ROR icon Cornell University
  • 11. ROR icon Purple Mountain Observatory
  • 12. ROR icon Peking University

Abstract

The emission from PSR J1107−5907 is erratic. Sometimes the radio pulse is undetectable, at other times the pulsed emission is weak, and for short durations the emission can be very bright. In order to improve our understanding of these state changes, we have identified archival data sets from the Parkes radio telescope in which the bright emission is present, and find that the emission never switches from the bright state to the weak state, but instead always transitions to the "off" state. Previous work had suggested the identification of the "off" state as an extreme manifestation of the weak state. However, the connection between the "off" and bright emission reported here suggests that the emission can be interpreted as undergoing only two emission states: a "bursting" state consisting of both bright pulses and nulls, and the weak emission state.

Additional Information

© 2020 The American Astronomical Society. Received 2019 September 26; revised 2019 November 24; accepted 2019 November 26; published 2020 January 20. The Parkes radio telescope is part of the Australia Telescope, which is funded by the Commonwealth of Australia for operation as a National Facility managed by the Commonwealth Scientific and Industrial Research Organisation (CSIRO). This paper includes archived data obtained through the CSIRO Data Access Portal (http://data.csiro.au). This work is supported by the Youth Innovation Promotion Association of Chinese Academy of Sciences, 201* Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents, the National Key R&D Program of China (No. 2017YFA0402602), the National Natural Science Foundation of China (No. 11690024), and the Strategic Priority Research Program (B) of the Chinese Academy of Sciences (No. XDB230102000). R.S. acknowledge Australian Research Council grant FL150100148. Work at NRL is supported by NASA.

Attached Files

Published - Wang_2020_ApJ_889_6.pdf

Accepted Version - 1911.12024.pdf

Files

1911.12024.pdf

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Additional details

Identifiers

Eprint ID
100828
Resolver ID
CaltechAUTHORS:20200122-084855990

Related works

Describes
https://arxiv.org/abs/1911.12024 (URL)

Funding

Commonwealth of Australia
National Key Research and Development Program of China
2017YFA0402602
National Natural Science Foundation of China
11690024
Chinese Academy of Sciences
XDB230102000
Australian Research Council
FL150100148
NASA

Dates

Created
2020-01-22
Created from EPrint's datestamp field
Updated
2021-11-16
Created from EPrint's last_modified field