Jan 13 – 16, 2020
IFPU, Miramare campus, Trieste, Italy
Europe/Rome timezone

Growth of supermassive black hole seeds in ETG star-forming progenitors via gaseous dynamical friction: perspectives for GW detections

Jan 14, 2020, 10:00 AM
IFPU, Miramare campus, Trieste, Italy

IFPU, Miramare campus, Trieste, Italy

Via Beirut 2, Trieste, Italy


Dr Lumen Boco (SISSA)


In this talk I will discuss a novel mechanism to grow supermassive black hole seeds in star-forming ETG progenitors at z >1. This envisages the migration and merging of stellar compact remnants, via gaseous dynamical friction, toward the central regions of such galaxies. I will show that this process can build up central BH masses of order 10^4 − 10^6 Msun in a timescale shorter than 10^8 yr, providing heavy seeds before standard disk accretion takes over to become the dominant process for further BH growth. I will discuss the perspectives to detect the merger events between the migrating stellar remnants and the accumulating central supermassive BH via gravitational wave emission with future ground and space-based detectors such as the Einstein Telescope (ET) and the Laser Interferometer Space Antenna (LISA).

Primary author

Dr Lumen Boco (SISSA)


Prof. Andrea Lapi (SISSA) Prof. Luigi Danese (SISSA)

Presentation materials