14 citations · 23 across the 4 of their papers we have counts for
5 papers · 1 filter
Long-term X-ray variability of the NLS1 Ark 564
Neha P R, Nikita S Arun, Savithri H. Ezhikode +4
We present a systematic spectral study of the X-ray emission from the Narrow- Line Seyfert 1 (NLS1) galaxy Ark 564 using Swift/XRT observations spanning sixteen years. The source e…
Establishing the Spectral Turnover of Blazar PKS 2155-304 as an Outcome of Radiative Losses
Sitha K. Jagan, S. Sahayanathan, R. Misra +2
The broad band optical/UV and X-ray spectra of blazars have been often modeled as synchrotron component arising from a broken power-law distribution of electrons. A broken power-la…
Long term optical variability of bright X-ray point sources in elliptical galaxies
V. Jithesh, R. Misra, P. Shalima +3
We present long term optical variability studies of bright X-ray sources in four nearby elliptical galaxies with {\it Chandra} Advanced CCD Imaging Spectrometer array (ACIS-S) and…
Mid-Infrared and X-ray luminosity correlations of X-ray point sources in NGC 1399
P. Shalima, V. Jithesh, K. Jeena +5
It is known that the IR and X-ray luminosities of Active Galactic Nuclei (AGN) are correlated with L_{IR} ~ L_{X}. Moreover, the IR flux ratio between the 5.8 and 3.6 μm bands is a…
Black Hole Mass Limits for Optically Dark X-ray Bright Sources in Elliptical Galaxies
V. Jithesh, K. Jeena, R. Misra +4
Estimation of the black hole mass in bright X-ray sources of nearby galaxies is crucial to the understanding of these systems and their formation. However, the present allowed blac…