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|Title:||X-ray timing analysis of the quasar PG 1211+143|
Reeves, J. N.
|Publisher:||Oxford University Press (OUP)|
|Citation:||Monthly Notices of the Royal Astronomical Society, 2016, 457 (1): 38-50.|
|Abstract:||We report on a timing analysis of a new ∼630 ks XMM–Newton observation of the quasar, PG 1211+143. We find a well-defined X-ray power spectrum with a well-detected bend at ∼7 × 10−5 Hz, consistent with the established tbend–MBH correlation for luminous, accreting black holes. We find the linear rms–flux relation commonly observed in accreting black hole systems and investigate the energy-dependence of the rms. The fractional rms is roughly constant with energy on short time-scales (<1 d; within observations) whereas there is enhanced soft band variability on long time-scales (between observations typically spaced by a few days). Additionally, we also report on the optical–UV variability using the Optical Monitor on-board XMM–Newton and a ∼2-month-long overlapping monitoring programme with Swift. We find that, although there is little UV variability within observations (<1 d), UV variations of a few per cent exist on time-scales of ∼days–weeks.|
|Rights:||Copyright © 2016, The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. The file associated with this record is distributed under the Creative Commons “Attribution Non-Commercial No Derivatives” licence, further details of which can be found via the following link: http://creativecommons.org/licenses/by-nc-nd/4.0/|
|Appears in Collections:||Published Articles, Dept. of Physics and Astronomy|
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|MNRAS-2016-Lobban-38-50.pdf||Published (publisher PDF)||3.14 MB||Adobe PDF||View/Open|
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