The Spin of New Black Hole Candidate: MAXI J1803-298 Observed by NuSTAR and NICER
MAXI J1803-298, a newly-discovered Galactic transient and black hole candidate, was first detected by \emph{MAXI}/GSC on May 1st, 2021. In this paper, we present a detailed spectral analysis of MAXI J1803-298. Utilizing the X-ray reflection fitting method, we perform a joint fit to the spectra of MA...
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| creator | Ye, Feng Zhao, Xueshan Li, Yufeng Gou, Lijun Jia, Nan Liao, Zhenxuan Wang, Yuan |
| description | MAXI J1803-298, a newly-discovered Galactic transient and black hole candidate, was first detected by \emph{MAXI}/GSC on May 1st, 2021. In this paper, we present a detailed spectral analysis of MAXI J1803-298. Utilizing the X-ray reflection fitting method, we perform a joint fit to the spectra of MAXI J1803-298, respectively, observed by \emph{NuSTAR} and \emph{NICER}/XTI on the same day over the energy range between 0.7-79.0 keV, and found its spin (and the inclination angle i) can be constrained to be close to an extreme value, 0.991 (\(i\sim\) \(70 ^{\circ}\)), at 68\% confidence interval. The results suggest that MAXI J1803-298 may be a fast-rotating black hole with a large inclination angle. |
| doi_str_mv | 10.48550/arxiv.2112.02794 |
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In this paper, we present a detailed spectral analysis of MAXI J1803-298. Utilizing the X-ray reflection fitting method, we perform a joint fit to the spectra of MAXI J1803-298, respectively, observed by \emph{NuSTAR} and \emph{NICER}/XTI on the same day over the energy range between 0.7-79.0 keV, and found its spin (and the inclination angle i) can be constrained to be close to an extreme value, 0.991 (\(i\sim\) \(70 ^{\circ}\)), at 68\% confidence interval. 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| subjects | Black holes Confidence intervals Extreme values Inclination angle Physics - High Energy Astrophysical Phenomena Spectrum analysis X ray reflection |
| title | The Spin of New Black Hole Candidate: MAXI J1803-298 Observed by NuSTAR and NICER |
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