| Name: | Anirudh Salgundi |
| Affiliation: | Indian Institute of Astrophysics |
| Conference ID : | ASI2023_672 |
| Title : | Timing analysis of Black Hole X-ray Binary GX 339-4 using AstroSat data |
| Authors : | Author - Anirudh Salgundi
Co-Author - Santanu Mondal |
| Mode of Presentation: | Poster |
| Abstract Category : | Stars, ISM and Galaxy |
| Abstract : | Galactic Black Hole X-ray Binaries (BHXRBs) show rapid spectral and temporal variability during their outburst period. GX 339-4 is a well studied BHXRB which showed this kind of variability in different enrgy bands during its perevious outbursts before 2021. With the simultaneous data from LAXPC and SXT onboard AstroSat, we have attempted to thoroughly explore different spectral and temporal properties of GX 339-4. The X-ray light curves and the spectra are examined to check the spectral variabilities during the flux state transitions. We also computed the Power Density Spectrum to look for temporal features and its correlation with the spectral state of the source. Different model fitted parameters show that the source was in hard state during 2021 with photon index ~1.6. Therefore, the corona was significantly hot and big. Our study also sheds lights on the accretion ejection properties of the source.
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