Exact gravitational wave signatures from colliding extreme black holes

Joan Camps, Shahar Hadar, Nicholas S. Manton

Research output: Contribution to journalArticlepeer-review


The low-energy dynamics of any system admitting a continuum of static configurations is approximated by slow motion in moduli (configuration) space. Here, following Ferrell and Eardley, this moduli space approximation is utilized to study collisions of two maximally charged Reissner-Nordström black holes of arbitrary masses, and to compute analytically the gravitational radiation generated by their scattering or coalescence. The motion remains slow even though the fields are strong, and the leading radiation is quadrupolar. A simple expression for the gravitational waveform is derived and compared at early and late times to expectations.

Original languageEnglish
Article number061501
JournalPhysical Review D
Issue number6
StatePublished - 25 Sep 2017
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2017 American Physical Society.

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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