The black hole occupation fraction of local dwarf galaxies with AXIS
Elena Gallo, Edmund Hodges-Kluck, Tommaso Treu, Vivienne Baldassare,, Anil Seth, Jenny Greene, Fabio Pacucci, Richard Plotkin, Amy Reines, Belinda, Wilkes
TL;DR
This paper discusses how AXIS observations can determine the fraction of local dwarf galaxies hosting massive black holes, providing insights into the origins of supermassive black holes.
Contribution
It proposes a method to measure the black hole occupation fraction in dwarf galaxies using AXIS, combining serendipitous fields and dedicated observations.
Findings
Potential 5% constraint on black hole occupation fraction
Observation plan includes 3300 galaxies across mass spectrum
Combines serendipitous and dedicated AXIS observations
Abstract
The fraction of local dwarf galaxies that hosts massive black holes is arguably the cleanest diagnostic of the dominant seed formation mechanism of today's supermassive black holes. A 5 per cent constraint on this quantity can be achieved with AXIS observations of 3300 galaxies across the mass spectrum through a combination of serendipitous extra-galactic fields plus a dedicated 1 Msec GO program.
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Taxonomy
TopicsAstrophysical Phenomena and Observations · Pulsars and Gravitational Waves Research · Astronomy and Astrophysical Research