3 papers
astro-ph.SR2020
PHAT XX. AGB stars and other cool giants in M31 star clusters
Leo Girardi, Martha L. Boyer, L. Clifton Johnson +20
The presence of AGB stars in clusters provides key constraints for stellar models, as has been demonstrated with historical data from the Magellanic Clouds. In this work, we look f…
astro-ph.HE2019
The Accretion Disc-Jet Connection in Blazars
Sagnick Mukherjee, Kaustav Mitra, Ritaban Chatterjee
The power spectral density (PSD) of the X-ray emission variability from the accretion disc-corona region of black hole X-ray binaries and active galactic nuclei has a broken power…
astro-ph.GA2018
X-ray Surface Brightness Profiles of Optically Selected Active Galactic Nuclei: Comparison with X-ray AGN
Sagnick Mukherjee, Anirban Bhattacharjee, Suchetana Chatterjee +2
We use data from the All Wavelength Extended Groth Strip International Survey to construct stacked X-ray maps of optically bright active galaxies (AGN) and an associated control sa…