학술논문
Massive Black Hole Binaries as LISA Precursors in the Roman High Latitude Time Domain Survey
Document Type
Working Paper
Author
Haiman, Zoltán; Xin, Chengcheng; Bogdanović, Tamara; Seoane, Pau Amaro; Bonetti, Matteo; Casey-Clyde, J. Andrew; Charisi, Maria; Colpi, Monica; Davelaar, Jordy; De Rosa, Alessandra; D'Orazio, Daniel J.; Futrowsky, Kate; Gandhi, Poshak; Graham, Alister W.; Greene, Jenny E.; Habouzit, Melanie; Haggard, Daryl; Holley-Bockelmann, Kelly; Liu, Xin; Mangiagli, Alberto; Mastrobuono-Battisti, Alessandra; McGee, Sean; Mingarelli, Chiara M. F.; Nemmen, Rodrigo; Palmese, Antonella; Porquet, Delphine; Sesana, Alberto; Stemo, Aaron; Torres-Orjuela, Alejandro; Zrake, Jonathan
Source
Subject
Language
Abstract
With its capacity to observe $\sim 10^{5-6}$ faint active galactic nuclei (AGN) out to redshift $z\approx 6$, Roman is poised to reveal a population of $10^{4-6}\, {\rm M_\odot}$ black holes during an epoch of vigorous galaxy assembly. By measuring the light curves of a subset of these AGN and looking for periodicity, Roman can identify several hundred massive black hole binaries (MBHBs) with 5-12 day orbital periods, which emit copious gravitational radiation and will inevitably merge on timescales of $10^{3-5}$ years. During the last few months of their merger, such binaries are observable with the Laser Interferometer Space Antenna (LISA), a joint ESA/NASA gravitational wave mission set to launch in the mid-2030s. Roman can thus find LISA precursors, provide uniquely robust constraints on the LISA source population, help identify the host galaxies of LISA mergers, and unlock the potential of multi-messenger astrophysics with massive black hole binaries.
Comment: White Paper for the Nancy Grace Roman Space Telescope's Core Community Surveys (https://roman.gsfc.nasa.gov/science/ccs_white_papers.html)
Comment: White Paper for the Nancy Grace Roman Space Telescope's Core Community Surveys (https://roman.gsfc.nasa.gov/science/ccs_white_papers.html)