Study of accretion flows around an ultraluminous X-ray source M82 X-1 using NuSTAR data Article Swipe

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Santanu Mondal , Biswaraj Palit , Sandip K. Chakrabarti ·

YOU? · · 2022 · Open Access · · DOI: https://doi.org/10.48550/arxiv.2208.05634

We study the spectral properties and accretion flow behavior of an ultraluminous X-ray source M82\,X-1 using {\it NuSTAR} observations. We use the physical two component advective flow (TCAF) model to fit the data and to derive the accretion flow properties of the source. From the model fitted parameters, we found that M82\,X-1 is harboring an intermediate mass black hole at its centre, where the mass varies from $156.04^{+13.51}_{-15.30}$ to $380.96^{28.38}_{-29.76}$ M$_\odot$. The error weighted average mass of the black hole is $273\pm43$ M$_\odot$, which accreted in nearly super-Eddington rate. The Compton cloud was compact with a size of $\sim13 r_g$ and the shock compression ratio had \textcolor{black}{nearly intermediate values except for the epoch four}. These indicate a possible significant mass outflow from the inner region of the disk. The quasi periodic oscillation (QPO) frequencies estimated from the model fitted parameters can reproduce the observed QPOs. The robustness of the model parameters is verified by drawing the confidence contours among them.

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Physics Astrophysics Accretion (finance) Accretion disc Outflow Black hole (networking) Computer network Routing (electronic design automation) Computer science Link-state routing protocol Routing protocol Meteorology

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Type: preprint
Language: en
Landing Page: http://arxiv.org/abs/2208.05634
PDF: https://arxiv.org/pdf/2208.05634
OA Status: green
Related Works: 10
OpenAlex ID: https://openalex.org/W4291219784

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DOI: https://doi.org/10.48550/arxiv.2208.05634

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Title: Study of accretion flows around an ultraluminous X-ray source M82 X-1 using NuSTAR data

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Type: preprint

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Language: en

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Publication year: 2022

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Publication date: 2022-08-11

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Authors: Santanu Mondal, Biswaraj Palit, Sandip K. Chakrabarti

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Landing page: https://arxiv.org/abs/2208.05634

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PDF URL: https://arxiv.org/pdf/2208.05634

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Concepts: Physics, Astrophysics, Accretion (finance), Accretion disc, Outflow, Black hole (networking), Computer network, Routing (electronic design automation), Computer science, Link-state routing protocol, Routing protocol, Meteorology

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