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A black hole X-ray ...
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Paice, J. A.Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England.;Interuniv Ctr Astron & Astrophys, Pune 411007, Maharashtra, India.
(author)
A black hole X-ray binary at similar to 100 Hz : multiwavelength timing of MAXIJ1820+070 with HiPERCAM and NICER
- Article/chapterEnglish2019
Publisher, publication year, extent ...
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2019-10-03
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OXFORD UNIV PRESS,2019
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printrdacarrier
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LIBRIS-ID:oai:DiVA.org:kth-270915
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-270915URI
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https://doi.org/10.1093/mnrasl/slz148DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-180674URI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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QC 20200324
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We report on simultaneous sub-second optical and X-ray timing observations of the low-mass X-ray binary black hole candidate MAXI J1820+070. The bright 2018 outburst rise allowed simultaneous photometry in five optical bands (ugrizs) with HiPERCAM/GTC (Optical) at frame rates over 100 Hz, together with NICER/ISS observations (X-rays). Intense (factor of 2) red flaring activity in the optical is seen over a broad range of time-scales down to similar to 10 ms. Cross-correlating the bands reveals a prominent anticorrelation on time-scales of similar to seconds, and a narrow sub-second correlation at a lag of approximate to+165 ms (optical lagging X-rays). This lag increases with optical wavelength, and is approximately constant over Fourier frequencies of similar to 0.3-10 Hz. These features are consistent with an origin in the inner accretion flow and jet base within similar to 5000 Gravitational radii. An additional similar to+5 s lag feature may be ascribable to disc reprocessing. MAXI J1820+070 is the third black hole transient to display a clear similar to 0.1 s optical lag, which may be common feature in such objects. The sub-second lag variation with wavelength is novel, and may allow constraints on internal shock jet stratification models.
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Gandhi, P.Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England.
(author)
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Shahbaz, T.IAC, E-38205 Tenerife, Spain.;ULL, Dept Astrofis, E-38206 Tenerife, Spain.
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Uttley, P.Univ Amsterdam, Astron Inst Anton Pannekoek, Sci Pk 904, NL-1098 XL Amsterdam, Netherlands.
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Arzoumanian, Z.NASA, Xray Astrophys Lab, Astrophys Sci Div, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
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Charles, P. A.Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England.
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Dhillon, V. S.IAC, E-38205 Tenerife, Spain.;Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England.
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Gendreau, K. C.NASA, Xray Astrophys Lab, Astrophys Sci Div, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
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Littlefair, S. P.Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England.
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Malzac, J.IRAP Univ Toulouse, CNES, UPS, CNRS, F-31400 Toulouse, France.
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Markoff, S.Univ Amsterdam, Astron Inst Anton Pannekoek, Sci Pk 904, NL-1098 XL Amsterdam, Netherlands.
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Marsh, T. R.Univ Warwick, Dept Phys, Astron & Astrophys Grp, Gibbet Hill Rd, Coventry CV4 7AL, W Midlands, England.
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Misra, R.Interuniv Ctr Astron & Astrophys, Pune 411007, Maharashtra, India.,New York Univ Abu Dhabi, POB 129188, Abu Dhabi, U Arab Emirates.
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Russell, D. M.New York Univ Abu Dhabi, POB 129188, Abu Dhabi, U Arab Emirates.
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Veledina, AlexandraStockholms universitet,KTH,Nordic Institute for Theoretical Physics NORDITA,Nordiska institutet för teoretisk fysik (Nordita),University of Turku, Finland(Swepub:su)avele
(author)
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Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England.;Interuniv Ctr Astron & Astrophys, Pune 411007, Maharashtra, India.Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England.
(creator_code:org_t)
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In:Monthly notices of the Royal Astronomical Society: OXFORD UNIV PRESS490:1, s. L62-L660035-87111365-29661745-39251745-3933
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Paice, J. A.
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Gandhi, P.
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Shahbaz, T.
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Uttley, P.
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Arzoumanian, Z.
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Charles, P. A.
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Dhillon, V. S.
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Gendreau, K. C.
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Littlefair, S. P ...
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Malzac, J.
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Markoff, S.
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Marsh, T. R.
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Misra, R.
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Russell, D. M.
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Veledina, Alexan ...
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