HECATE: galaxies and hosted ultraluminous X-ray source populations in the Local Universe
Konstantinos Kovlakas  1, 2@  
1 : University of Crete
2 : Foundation for Research and Technology - Hellas [Crete]

Ultraluminous X-ray sources (ULXs) are of great interest to many investigations of modern Astrophysics: accretion physics, compact binary systems and gravitational wave progenitors, heating during the cosmological epoch of reionization, etc. Through connecting their populations with their environments, we can draw valuable information on the nature and evolution of ULXs, and put constraints to binary population synthesis models. Towards this direction, we have compiled HECATE, a volume-limited (200 Mpc) catalogue of more than 160K galaxies with distance estimates and stellar population properties. By cross-matching the Chandra Source Catalogue 2.0 with HECATE, we create the largest up-to-date census of ULXs and study their connection with host galaxy properties such as (specific) star-formation rate, stellar mass and metallicity and compare our results with predictions from X-ray binary population synthesis models.

Online user: 1