Nordita Astrophysics Seminars

Understanding X-ray Emission from AGN in Low Surface Brightness Galaxies

by Harsha Raichur (Nordita)

122:026 ()


This talk will discuss the possible implications of the recently scheduled XMM-Newton observations of 6 nearby, bulge dominated giant low surface brightness (GLSB) galaxies. They have diffuse stellar disks and massive HI disks but are overall poor in star formation. They are possibly the most dark matter dominated spirals in our nearby universe and yet a significant fraction of them have prominent bulges that host AGN activity. Optical studies indicate that their AGN black hole masses are low compared to their galaxy masses and lie below the M-sigma correlation. Not much is known about the AGN activity and bulge evolution in these galaxies, especially in the X-ray domain. XMM-Newton observations will be used to detect and characterize the X-ray properties of these systems.