Journal of Astronomy and Space Sciences

The Korean Space Science Society (한국우주과학회)
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X-ray Data Analysis to Search for Magnetar Candidates in the Galactic Plane

  • Park, Woochan (Department of Astronomy and Space Science, Chungbuk National University) ;
  • An, Hongjun (Department of Astronomy and Space Science, Chungbuk National University)
  • Received : 2018.07.10
  • Accepted : 2018.09.05
  • Published : 2018.09.30
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Abstract

We report on our Galactic plane searches for magnetars in the archival Chandra X-ray Observatory (CXO) data. We summarize the properties of known magnetars and use them to establish a procedure for magnetar searches. The procedure includes four steps: source finding, spectral characterization, optical counterpart checks, and period searches. We searched 1,282 archival CXO observations, found 32,838 X-ray sources, and selected 25 intriguing candidates using the developed procedure. Although we do not firmly identify a magnetar among them, we significantly reduced the number of targets in future magnetar searches to be done with better X-ray telescopes.

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References

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