{
  "id": "astro-ph/9808097",
  "version": "v1",
  "published": "1998-08-11T04:04:41.000Z",
  "updated": "1998-08-11T04:04:41.000Z",
  "title": "RXTE Observation of PSR B0656+14",
  "authors": [
    "Hsiang-Kuang Chang",
    "Cheng Ho"
  ],
  "comment": "10 pages, LaTeX (aaspp4.sty), figures (eps) included. To appear in ApJ 501 on Jan. 1, 1999",
  "categories": [
    "astro-ph"
  ],
  "abstract": "PSR B0656+14 was observed by the {\\it Rossi X-ray Timing Explorer (RXTE)} with the proportional counter array (PCA) and the high-energy x-ray timing experiment (HEXTE) for 160 ksec during August 22 -- September 3, 1997. No pulsation was firmly found in the timing analysis, in which the contemporaneous radio ephemeris and various statistical tests were applied for searching evidence of pulsation. A marginal detection of pulsation at a confidence level of 95.5% based on the $H$-test was found with data in the whole HEXTE energy band. In the energy band of 2-10 keV the {\\it RXTE} PCA upper limits are about one order of magnitude lower than that from {\\it ASCA} GIS data. If the {\\it CGRO} EGRET detection of this pulsar is real, considering the common trait that most EGRET-detected pulsars have a cooling spectrum in hard x-ray and gamma ray energy bands, the estimated {\\it RXTE} upper limits indicate a deviation (low-energy turn-over) from a cooling spectrum starting from 20 keV or higher. It in turn suggests an outer-magnetospheric synchrotron-radiation origin for high-energy emissions from PSR B0656+14. The {\\it RXTE} PCA upper limits also suggest that a reported power-law component based on {\\it ASCA} SIS data in 1-10 keV fitted jointly with {\\it ROSAT} data, if real, should be mainly unpulsed.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1998-08-11T04:04:41.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "rxte observation",
      "pca upper limits",
      "gamma ray energy bands",
      "cooling spectrum",
      "outer-magnetospheric synchrotron-radiation origin"
    ],
    "note": {
      "typesetting": "LaTeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 489895,
      "adsabs": "1998astro.ph..8097C"
    }
  }
}