Massive Black Hole Binaries as LISA Precursors in the Roman High Latitude Time Domain Survey
| Autor: | 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 |
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| Rok vydání: | 2023 |
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| Druh dokumentu: | Working Paper |
| Popis: | 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) |
| Databáze: | arXiv |
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