DOI | Resolve DOI: https://doi.org/10.1007/s10509-011-0962-9 |
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Author | Search for: Bell, M.B.1; Search for: Comeau, S.P.1 |
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Affiliation | - National Research Council of Canada. NRC Herzberg Institute of Astrophysics
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Format | Text, Article |
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Abstract | Evidence is presented indicating that the bursting component of the X-ray radiation detected in the nuclear region of the active radio galaxy 3C 111 comes from the blobs ejected in the pc-scale jet and not from the accretion disc. After each new outburst the radio flux density associated with it increases to a peak in ~1 year and then subsides over a period of 1-2 years with the flux falling off exponentially as the blob moves outward and dissipates. Similar peaks (bursts) are seen in the X-ray light curve and a cross-correlation between the two shows a very high correlation with the X-ray peaks leading the radio peaks by ~100 days. A second cross-correlation, this time between the radio event start times and the X-ray light curve, also shows a significant correlation. When this is taken together with the long (~1 yr) delay between the start of each ejection event and its associated X-ray peak it indicates that this bursting component of the X-ray flux must be associated with the ejected blobs in the pc-scale jet and not with the accretion disc. Because X-ray telescopes do not have the resolution required to resolve the accretion disc area from the pc-scale jet, this paper is the first to present observational evidence that can pinpoint the point of origin of at least those long-timescale X-ray bursts with durations of 1-3 yrs. © 2011 Springer Science+Business Media B.V. |
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Publication date | 2012 |
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In | |
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Language | English |
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Peer reviewed | Yes |
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NPARC number | 21269246 |
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Export citation | Export as RIS |
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Report a correction | Report a correction (opens in a new tab) |
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Record identifier | aa62f194-a5ef-46fa-a339-828a84c0d176 |
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Record created | 2013-12-12 |
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Record modified | 2020-04-21 |
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