Discovery of a binary quasar at z~0.2 with 430 pc separation indicating a bound SMBH pair each >4e8 Msun, with 2.5 Gyr upper limit on merger timescale and implications for the PTA gravitational wave background.
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2 Pith papers cite this work. Polarity classification is still indexing.
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astro-ph.GA 2years
2019 2verdicts
UNVERDICTED 2representative citing papers
Some LIGO/Virgo BH-BH mergers may arise from black holes in merging ultra-dwarf galaxies at z>1 if merger timescales are 4-7 Gyr, as local rates are too low by an order of magnitude but high-z conditions could match the observed GW rate of 9.7-101 Gpc^-3 yr^-1.
citing papers explorer
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Discovery of a close-separation binary quasar at the heart of a z~0.2 merging galaxy and its implications for low-frequency gravitational waves
Discovery of a binary quasar at z~0.2 with 430 pc separation indicating a bound SMBH pair each >4e8 Msun, with 2.5 Gyr upper limit on merger timescale and implications for the PTA gravitational wave background.
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Gravitational Waves from Black Holes in Merging Ultra-Dwarf Galaxies
Some LIGO/Virgo BH-BH mergers may arise from black holes in merging ultra-dwarf galaxies at z>1 if merger timescales are 4-7 Gyr, as local rates are too low by an order of magnitude but high-z conditions could match the observed GW rate of 9.7-101 Gpc^-3 yr^-1.