{
  "id": "1905.08072",
  "version": "v1",
  "published": "2019-05-20T13:01:00.000Z",
  "updated": "2019-05-20T13:01:00.000Z",
  "title": "Long term variability of Swift J1753.5-0127]{Long term variability of Swift J1753.5-0127: X-ray spectral-temporal correlations during state transitions",
  "authors": [
    "Qingcui Bu",
    "Lian Tao",
    "Yu Lu",
    "Shuangnan Zhang",
    "Liang Zhang",
    "Yue Huang",
    "Li Chen",
    "Jinlu Qu",
    "Xiang Ma"
  ],
  "comment": "29 pages, 8 figures, accepted by MNRAS",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "We studied the long-term evolution of the spectral-temporal correlated properties of the black hole candidate Swift J1753.5-0127 from the onset of its outburst until 2011 with the Rossi X-ray Timing Explorer (RXTE). The source stayed most of its lifetime during hard state, with occasionally transitioned to the hard intermediate state. Similar to typical black hole transients, Swift J1753.5-0127 traces a clear hard line in absolute rms - intensity diagram during the low hard state, with expected highest absolute rms, while shows a clear turn during the hard intermediate state, accompanied by lower absolute rms. Different from Cyg X-1, we found that frequency-dependent time lag increased significantly in the 0.02 -- 3.2 Hz band during state transition in this source. The X-ray time lags in 0.02 -- 3.2 Hz can therefore be used as indicators of state transition in this source. Type-C QPO frequency is positively related with its fractional rms and X-ray photon index, suggesting a moving inwards disk/corona scenario. We discussed the physical interpretation of our results in our paper.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2019-05-20T13:01:00.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "long term variability",
      "x-ray spectral-temporal correlations",
      "state transition",
      "hard intermediate state",
      "absolute rms"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 29,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}