Finding Local Low-mass Supermassive Black Holes
Smita Mathur (1), Himel Ghosh (1), Laura Ferrarese (2), Fabrizio Fiore, (3) ((1) Ohio State University, (2) Herzberg Institute of Astrophysics, (3), INAF - Osservatorio Astronomico di Roma)
TL;DR
This paper presents a successful method for identifying low-mass supermassive black holes in late-type galaxies using X-ray data, advancing understanding of the low-mass end of the black hole mass function.
Contribution
It introduces a new approach combining X-ray detections and multiwavelength data to find active nuclei in normal galaxies, especially when broad emission lines are not visible.
Findings
Most Chandra-detected nuclear X-ray sources are AGNs.
Methods for black hole mass estimation without broad emission lines.
Enhanced detection of low-mass supermassive black holes.
Abstract
The low-mass end of the supermassive black hole mass function is unknown and difficult to determine. Here we discuss our successful program to find active nuclei of late type "normal" galaxies using X-ray detections and multiwavelength identifications. We conclude that most of the Chandra detected nuclear X-ray sources are AGNs. We then outline methods of black hole mass determination when broad emission lines are unobservable.
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