Reflare in MAXI J1348-630]{Evolution of disc and corona in MAXI J1348-630 during the 2019 reflare: NICER and Insight-HXMT view
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2023
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866913604829184000 |
|---|---|
| author | Dai, Xiaohang Kong, Lingda Bu, Qingcui Santangelo, Andrea Zhang, Shu Ji, Long Zhang, Shuangnan Yorgancioglu, Emre Seyit |
| author_facet | Dai, Xiaohang Kong, Lingda Bu, Qingcui Santangelo, Andrea Zhang, Shu Ji, Long Zhang, Shuangnan Yorgancioglu, Emre Seyit |
| contents | In this work, using \textit{NICER} and \textit{Insight}-HXMT observations, we present a study of the broadband spectral and timing evolution of the source throughout the first reflare, which occurred about 4 months after the major outburst. Our findings suggest that during the reflare, below a critical luminosity $L_{\rm crit}\sim2.5\times10^{36}$ (D/2.2 kpc)$^{2}$ erg s$^{-1}$, the scale of the corona shrinks in the radial direction, whereas the inner radius of the disk does not change considerably; however, the inner radius of the disk starts to move inward when the source exceeds the critical luminosity. We conclude that at low luminosity the increase in accretion rate only heats up the inner zone of the accretion disc without the transfer of angular momentum which occurs above a certain luminosity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2303_05290 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Reflare in MAXI J1348-630]{Evolution of disc and corona in MAXI J1348-630 during the 2019 reflare: NICER and Insight-HXMT view Dai, Xiaohang Kong, Lingda Bu, Qingcui Santangelo, Andrea Zhang, Shu Ji, Long Zhang, Shuangnan Yorgancioglu, Emre Seyit High Energy Astrophysical Phenomena High Energy Physics - Phenomenology In this work, using \textit{NICER} and \textit{Insight}-HXMT observations, we present a study of the broadband spectral and timing evolution of the source throughout the first reflare, which occurred about 4 months after the major outburst. Our findings suggest that during the reflare, below a critical luminosity $L_{\rm crit}\sim2.5\times10^{36}$ (D/2.2 kpc)$^{2}$ erg s$^{-1}$, the scale of the corona shrinks in the radial direction, whereas the inner radius of the disk does not change considerably; however, the inner radius of the disk starts to move inward when the source exceeds the critical luminosity. We conclude that at low luminosity the increase in accretion rate only heats up the inner zone of the accretion disc without the transfer of angular momentum which occurs above a certain luminosity. |
| title | Reflare in MAXI J1348-630]{Evolution of disc and corona in MAXI J1348-630 during the 2019 reflare: NICER and Insight-HXMT view |
| topic | High Energy Astrophysical Phenomena High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2303.05290 |