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- Indian Institute of AstrophysicsIN108 papers
- Inter-University Centre for Astronomy and AstrophysicsIN27 papers
- Tata Institute of Fundamental ResearchIN27 papers
- Central University of KeralaIN15 papers
- Aryabhatta Research Institute of Observational SciencesIN13 papers
- National Centre for Radio AstrophysicsIN11 papers
- Centre National de la Recherche ScientifiqueFR8 papers
- Indian Institute of Science BangaloreIN8 papers
- Physical Research LaboratoryIN8 papers
- Ludwig-Maximilians-Universität MünchenDE7 papers
- Raman Research InstituteIN7 papers
- University of CambridgeGB6 papers
28 papers · 1 filter
Broadband mHz QPOs and spectral study of LMC X4 with AstroSat
Rahul Sharma, Chetana Jain, Ketan Rikame +1
We report the results of broadband timing and spectral analysis of data from an AstroSat observation of the High Mass X-ray binary LMC X4. The Large Area X-ray Proportional Coun…
Broadband Spectral properties of MAXI J1348--630 using AstroSat Observations
Gitika Mall, Jithesh Vadakkumthani, Ranjeev Misra
We present broadband X-ray spectral analysis of the black hole X-ray binary MAXI J1348--630, performed using five AstroSat observations. The source was in the soft spectral state f…
Barbell-shaped giant radio galaxy with ~100 kpc kink in the jet
Pratik Dabhade, Timothy W. Shimwell, Joydeep Bagchi +8
We present for the first time a study of peculiar giant radio galaxy (GRG) J223301+131502 using deep multi-frequency radio observations from GMRT (323, 612, and 1300 MHz) and LOFAR…
Spectral characteristics of the black hole binary 4U 1957+115: A multi-mission perspective
Sneha Prakash Mudambi, S. B. Gudennavar, R. Misra +1
We report spectral analysis of the persistent black hole X-ray binary, 4U 1957+115, using AstroSat, Swift and NuSTAR observations carried out between 2016-2019. Modelling with a di…
Long-term optical and ray variability of the blazar PKS~1222+216
Savithri H. Ezhikode, Amit Shukla, Gulab C. Dewangan +4
The ray emission from flat-spectrum radio quasars (FSRQs) is thought to be dominated by the inverse Compton scattering of the external sources of photon fields, e.g., accretion…
Study of the transient nature of classical Be stars using multi-epoch optical spectroscopy
Gourav Banerjee, Blesson Mathew, K. T. Paul +8
Variability is a commonly observed property of classical Be stars (CBe) stars. In extreme cases, complete disappearance of the Hα emission line occurs, indicating a disc-less state…