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Fast infrared varia...
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Vincentelli, F. M.Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England.
(author)
Fast infrared variability from the black hole candidate MAXI J1535-571 and tight constraints on the modelling
- Article/chapterEnglish2021
Publisher, publication year, extent ...
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2021-02-19
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Oxford University Press (OUP),2021
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LIBRIS-ID:oai:DiVA.org:kth-296192
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-296192URI
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https://doi.org/10.1093/mnras/stab475DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-195644URI
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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 20210603
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We present the results regarding the analysis of the fast X-ray/infrared (IR) variability of the black hole transient MAXI J1535-571. The data studied in thiswork consist of two strictly simultaneous observations performed with XMM-Newton (X-rays: 0.7-10 keV), VLT/HAWK-I (K-s band, 2.2 mu m) andVLT/VISIR (Mand PAH2 2 bands, 4.85 and 11.88 mu m, respectively). The cross-correlation function between the X-ray and near-IR light curves shows a strong asymmetric anticorrelation dip at positive lags. We detect a near-IR QPO (2.5 sigma) at 2.07 +/- 0.09 Hz simultaneously with an X-ray QPO at approximately the same frequency (f(0) = 2.25 +/- 0.05). From the cross-spectral analysis, a lag consistent with zero was measured between the two oscillations. We also measure a significant correlation between the average near-IR and mid-IR fluxes during the second night, but find no correlation on short time-scales. We discuss these results in terms of the two main scenarios for fast IR variability (hot inflow and jet powered by internal shocks). In both cases, our preliminary modelling suggests the presence of a misalignment between the disc and jet.
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Casella, P.INAF, Osservatorio Astron Roma, Via Frascati 33, I-00078 Monte Porzio Catone, Italy.
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Russell, D. M.New York Univ Abu Dhabi, Ctr Astro Particle & Planetary Phys, POB 129188, Abu Dhabi, U Arab Emirates.
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Baglio, M. C.New York Univ Abu Dhabi, Ctr Astro Particle & Planetary Phys, POB 129188, Abu Dhabi, U Arab Emirates.
(author)
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Veledina, AlexandraStockholms universitet,KTH,Nordic Institute for Theoretical Physics NORDITA,Univ Turku, Dept Phys & Astron, FI-20014 Turku, Finland.;NORDITA, KTH Royal Inst Technol, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden.;Stockholm Univ, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden.;Russian Acad Sci, Space Res Inst, Profsoyuznaya St 84-32, Moscow 117997, Russia.,Nordiska institutet för teoretisk fysik (Nordita),University of Turku, Finland; Space Research Institute of the Russian Academy of Sciences, Russia(Swepub:su)avele
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Maccarone, T.Texas Tech Univ, Phys & Astron Dept, Box 41051, Lubbock, TX 79409 USA.
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Malzac, J.Univ Toulouse, IRAP, CNRS, UPS,CNES, Toulouse, France.
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Fender, R.Univ Oxford, Astrophys, Dept Phys, Denys Wilkinson Bldg,Keble Rd, Oxford OX1 3RH, England.
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O'Brien, K.Univ Durham, Dept Phys, South Rd, Durham DH1 3LE, England.
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Uttley, P.Anton Pannekoek Univ Amsterdam, Astron Inst, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands.
(author)
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Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England.INAF, Osservatorio Astron Roma, Via Frascati 33, I-00078 Monte Porzio Catone, Italy.
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In:Monthly notices of the Royal Astronomical Society: Oxford University Press (OUP)503:1, s. 614-6240035-87111365-2966
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Vincentelli, F. ...
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Casella, P.
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Russell, D. M.
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Baglio, M. C.
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Veledina, Alexan ...
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Maccarone, T.
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Malzac, J.
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Fender, R.
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O'Brien, K.
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Uttley, P.
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