| Autor: |
Bhowmick, Riya, Debnath, Dipak, Chatterjee, Kaushik, Jana, Arghajit, Nath, Sujoy Kumar |
| Předmět: |
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| Zdroj: |
Galaxies (2075-4434); Oct2022, Vol. 10 Issue 5, pN.PAG-N.PAG, 21p |
| Abstrakt: |
The newly discovered galactic black hole candidate (BHC) MAXI J1348-630 showed two major outbursts in 2019, just after its discovery. Here, we provide a detailed spectral and temporal analysis of the less-studied second outburst using archive data from multiple satellites, namely Swift, MAXI, NICER, NuSTAR and AstroSat. The outburst continued for around two and a half months. Unlike the first outburst from this source, this second outburst was a 'failed' one. The source did not transition to soft or intermediate spectral states. During the entire outburst, the source was in the hard state with high dominance of non-thermal photons. The presence of strong shocks are inferred from spectral fitting using a TCAF model. In NuSTAR spectra, weak reflection is observed from spectral fitting. Low-frequency quasi-periodic oscillations are also detected in AstroSat data. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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