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A black hole X-ray ...
A black hole X-ray binary at similar to 100 Hz : multiwavelength timing of MAXIJ1820+070 with HiPERCAM and NICER
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- Paice, J. A. (författare)
- Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England.;Interuniv Ctr Astron & Astrophys, Pune 411007, Maharashtra, India.
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- Gandhi, P. (författare)
- Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England.
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- Shahbaz, T. (författare)
- IAC, E-38205 Tenerife, Spain.;ULL, Dept Astrofis, E-38206 Tenerife, Spain.
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- Uttley, P. (författare)
- Univ Amsterdam, Astron Inst Anton Pannekoek, Sci Pk 904, NL-1098 XL Amsterdam, Netherlands.
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- Arzoumanian, Z. (författare)
- NASA, Xray Astrophys Lab, Astrophys Sci Div, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
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- Charles, P. A. (författare)
- Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England.
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- Dhillon, V. S. (författare)
- IAC, E-38205 Tenerife, Spain.;Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England.
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- Gendreau, K. C. (författare)
- NASA, Xray Astrophys Lab, Astrophys Sci Div, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
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- Littlefair, S. P. (författare)
- Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England.
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- Malzac, J. (författare)
- IRAP Univ Toulouse, CNES, UPS, CNRS, F-31400 Toulouse, France.
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- Markoff, S. (författare)
- Univ Amsterdam, Astron Inst Anton Pannekoek, Sci Pk 904, NL-1098 XL Amsterdam, Netherlands.
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- Marsh, T. R. (författare)
- Univ Warwick, Dept Phys, Astron & Astrophys Grp, Gibbet Hill Rd, Coventry CV4 7AL, W Midlands, England.
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- Misra, R. (författare)
- 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. (författare)
- New York Univ Abu Dhabi, POB 129188, Abu Dhabi, U Arab Emirates.
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- Veledina, Alexandra (författare)
- Stockholms universitet,KTH,Nordic Institute for Theoretical Physics NORDITA,Nordiska institutet för teoretisk fysik (Nordita),University of Turku, Finland
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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)
- 2019-10-03
- 2019
- Engelska.
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Ingår i: Monthly notices of the Royal Astronomical Society. - : OXFORD UNIV PRESS. - 0035-8711 .- 1365-2966 .- 1745-3925 .- 1745-3933. ; 490:1, s. L62-L66
- Relaterad länk:
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https://doi.org/10.1...
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https://academic.oup...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- accretion
- accretion discs
- X-rays: binaries
- X-rays: individual: MAXI J1820+070
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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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visa fler...
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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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Kungliga Tekniska Högskolan
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Stockholms universitet