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- Birla Institute of Technology and Science - Hyderabad CampusIN15 papers
- Birla Institute of Technology and Science, PilaniIN13 papers
- Inter-University Centre for Astronomy and AstrophysicsIN5 papers
- Indian Space Research OrganisationIN4 papers
- Korea Astronomy and Space Science InstituteKR4 papers
- Tata Institute of Fundamental ResearchIN4 papers
- Indian Institute of AstrophysicsIN3 papers
- Maulana Azad National Urdu UniversityIN2 papers
- University of HyderabadIN2 papers
- Vellore Institute of Technology UniversityIN2 papers
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9 papers · 1 filter
Association of Optical, Ultraviolet and Soft X-ray excess Emissions in AGNs
D. Nour, K. Sriram
Soft X-ray emission (0.5--2.0 keV) plays a pivotal role in regulating the optical and UV emission in the AGNs. We collected a sample of 1811 AGNs from the SDSS database and obtaine…
Constraining the Coronal Heights and Readjustment Velocities Based on the Detection of a Few Hundred Seconds Delays in the Z Source GX 17+2
K. Sriram, S. Malu, C. S. Choi
Neutron star Z type sources provide a unique platform in order to understand the structure of accretion disk-corona geometry emitting close to the Eddington luminosity. Using RXTE…
Anti-Correlated lags in a Neutron star Z source GX 5-1: AstroSat's View
Chiranjeevi Pallerla, K. Sriram
We report the cross-correlation function studies of a Neutron star low mass X-ray binary, a Z source GX 5-1 using SXT and LAXPC energy bands onboard AstroSat. For the first time, w…
Influence of Comptonization region over the ambiance of accretion disc in Active Galactic Nucleus
K. Sriram, D. Nour, C. S. Choi
Understanding the radiative and physical structures of inner region of a few 100 pc of AGNs is important to constrain the causes of their activities. Although the X-ray emission fr…
Investigating the coronal structure by studying time lags in the Atoll source 4U 1705-44 using AstroSat
S. Malu, S. Harikrishna, K. Sriram +1
We performed a detailed timing study of the Atoll source 4U 1705-44 in order to understand the accretion disk geometry. Cross correlation function (CCF) studies were performed betw…
Understanding the Inner Structure of Accretion disk in GX 17+2: AstroSat's Outlook
K. Sriram, P. Chiranjeevi, S. Malu +1
We performed the timing and spectral studies of a Z source GX 17+2 observed from Astrosat LAXPC instrument. Cross-Correlation function (CCF) was performed using soft (3-5 keV) and…