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  • evidence that the bursting component of the x-ray radiation from 3c 111 originates in the pc-scale jet

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    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 940
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
    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.

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