518 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Indian Institute of Technology GandhinagarIN282 papers
- Tata Institute of Fundamental ResearchIN161 papers
- Centre National de la Recherche ScientifiqueFR100 papers
- Indian Institute of AstrophysicsIN92 papers
- Chinese Academy of SciencesCN71 papers
- Aryabhatta Research Institute of Observational SciencesIN66 papers
- Inter-University Centre for Astronomy and AstrophysicsIN62 papers
- Harish-Chandra Research InstituteIN54 papers
- Indian Institute of Science BangaloreIN54 papers
- Indian Institute of Technology BombayIN54 papers
- Udaipur Solar ObservatoryIN53 papers
- California Institute of TechnologyUS46 papers
12 papers · 2 filters
Correlated X-ray/UV/optical emission and short term variability in a Seyfert 1 galaxy NGC 4593
Main Pal, Sachindra Naik
We present a detailed multi-frequency analysis of an intense monitoring programme of Seyfert 1 galaxy NGC 4593 over a duration of nearly for a month with Swift observatory. We used…
Transition Elements in Supernova Presolar Grains: Condensation vs. Implantation
Kuljeet K. Marhas, Piyush Sharda
We compute the concentrations of five transition elements (Cr, Fe, Co, Ni and Zn) in supernova presolar grains (Silicon Carbide Type X) from the time they condense till the end of…
Understanding the spectral and timing behavior of a newly discovered transient X-ray pulsar Swift J0243.6+6124
Gaurava K. Jaisawal, Sachindra Naik, J. Chenevez
We present the results obtained from timing and spectral studies of the newly discovered accreting X-ray binary pulsar Swift J0243.6+6124 using a NuSTAR observation in 2017 October…
A Suzaku View of Accretion Powered X-ray Pulsar GX 1+4
Yuki Yoshida, Shunji Kitamoto, Hiroo Suzuki +3
We present results obtained from a Suzaku observation of the accretion powered X-ray pulsar GX 1+4. Broad-band continuum spectrum of the pulsar was found to be better described by…
Complex Optical/UV and X-ray Variability of the Seyfert 1 galaxy 1H 0419-577
Main Pal, Gulab C. Dewangan, Ajit K. Kembhavi +2
We present detailed broadband UV/optical to X-ray spectral variability of the Seyfert 1 galaxy 1H 0419-577 using six XMM-Newton observations performed during 2002-2003. These obser…
A precise measurement of the orbital period parameters of Cygnus X-3
Yash Bhargava, A. R. Rao, K. P. Singh +9
We present X-ray light curves of Cygnus X-3 as measured by the recently launched AstroSat satellite. The light curve folded over the binary period of 4.8 hours shows a remarkable s…
Stochastic modeling of multiwavelength variability of the classical BL Lac object OJ 287 on timescales ranging from decades to hours
A. Goyal, L. Stawarz, S. Zola +109
We present the results of our power spectral density analysis for the BL Lac object OJ\,287, utilizing the {\it Fermi}-LAT survey at high-energy -rays, {\it Swift}-XRT in X-rays…
Decade long RXTE monitoring observations of Be/X-ray binary pulsar EXO 2030+375
Prahlad Epili, Sachindra Naik, Gaurava K. Jaisawal +1
We present a comprehensive timing and spectral studies of Be/X-ray binary pulsar EXO 2030+375 using extensive Rossi X-ray Timing Explorer observations from 1995 till 2011, covering…
Surprise in simplicity: an unusual spectral evolution of a single pulse GRB 151006A
R. Basak, S. Iyyani, V. Chand +4
We present a detailed analysis of GRB 151006A, the first GRB detected by Astrosat CZT Imager (CZTI). We study the long term spectral evolution by exploiting the capabilities of \em…
A tale of two transients: GW170104 and GRB170105A
V. Bhalerao, M. M. Kasliwal, D. Bhattacharya +30
We present multi-wavelength follow-up campaigns by the AstroSat-CZTI and GROWTH collaborations to search for an electromagnetic counterpart to the gravitational wave event GW170104…
Prompt emission polarimetry of Gamma Ray Bursts with ASTROSAT CZT-Imager
Tanmoy Chattopadhyay, Santosh V. Vadawale, E. Aarthy +10
X-ray and Gamma-ray polarization measurements of the prompt emission of Gamma-ray bursts (GRBs) are believed to be extremely important for testing various models of GRBs. So far, t…
Detection of Cyclotron Resonance Scattering Feature in High Mass X-ray Binary Pulsar SMC X-2
Gaurava K. Jaisawal, Sachindra Naik
We report broadband spectral properties of the high mass X-ray binary pulsar SMC X-2 by using three simultaneous and /XRT observations during its 2015 outburst. The…