Gravitational-wave limit on the Chandrasekhar mass of dark matter

Divya Singh, Michael Ryan, Ryan Magee, Towsifa Akhter, Sarah Shandera, Donghui Jeong, Chad Hanna

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


We explore a new paradigm to study dissipative dark matter models using gravitational-wave observations. We consider a dark atomic model which predicts the formation of binary black holes such as GW190425 while obeying constraints from large-scale structure, and improving on the missing-satellite problem. Using LIGO and Virgo gravitational-wave data from September 12, 2015 to October 1, 2019, we show that interpreting GW190425 as a dark matter black-hole binary limits the Chandrasekhar mass for dark matter to be below 1.4 M⊙ at >99.9% confidence implying that the dark proton is heavier than 0.95 GeV, while also suggesting that the molecular energy-level spacing of dark molecules lies near 10-3 eV and constraining the cooling rate of dark matter at low temperatures.

Original languageEnglish (US)
Article number044015
JournalPhysical Review D
Issue number4
StatePublished - Aug 15 2021

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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