Статья

Testing Evolution of LFQPOs with Mass Accretion Rate in GRS 1915+105 with Insight-HXMT

Honghui LiuCenter for Field Theory and Particle Physics and Department of Physics, Fudan University, 200438 Shanghai, People’s Republic of China; [email protected]Long JiInstitut für Astronomie und Astrophysik, Kepler Center for Astro and Particle Physics, Eberhard Karls Universität, Tübingen, GermanyCosimo BambiCenter for Field Theory and Particle Physics and Department of Physics, Fudan University, 200438 Shanghai, People’s Republic of China; [email protected]Pankaj JainDepartment of Physics, IIT Kanpur, Kanpur, Uttar Pradesh 208016, IndiaRanjeev MisraInter-University Center for Astronomy and Astrophysics, Ganeshkhind, Pune 411007, IndiaDivya RawatDepartment of Physics, IIT Kanpur, Kanpur, Uttar Pradesh 208016, IndiaJ. S. YadavDepartment of Physics, IIT Kanpur, Kanpur, Uttar Pradesh 208016, IndiaYuexin ZhangKapteyn Astronomical Institute, University of Groningen, PO Box 800, Groningen NL-9700 AV, The Netherlands

2021en

ABI

Аннотация

Abstract Using the Insight-HXMT observations of GRS 1915+105 when it exhibits low-frequency quasiperiodic oscillations (QPOs), we measure the evolution of the QPO frequency along with disk inner radius and mass accretion rate. We find a tight positive correlation between the QPO frequency and mass accretion rate. Our results extend the finding of previous work with AstroSat to a larger range of accretion rates with independent instruments and observations. Treating the QPO frequency of GRS 1915+105 as the relativistic dynamic frequency of a truncated disk, we are able to confirm the high spin nature of the black hole in GRS 1915+105. We also address the potential of our finding to test general relativity in the future.

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Идентификаторы

DOI: 10.3847/1538-4357/abdf65

Цитирования и источники

Цитирований: 4Использованных источников: 0

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