Using Black Hole--Pulsar Binaries to Search for a Warped Extra Dimension

Details Using Black Hole--Pulsar Binaries to Search for a Warped Extra Dimension Using Black Hole--Pulsar Binaries to Search for a Warped Extra Dimension

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21812201k&link_type=abstract

American Astronomical Society, AAS Meeting #218, #122.01; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

We will discuss the observable effects of enhanced black-hole mass loss in a black hole--neutron star (BH--NS) binary, due to the presence of a warped extra spatial dimension in the braneworld scenario. For some masses and orbital parameters in the expected ranges the binary components would outspiral, the opposite of the behavior due to energy loss from gravitational radiation alone. If the NS is a pulsar, observations of the rate of change of the orbital period with a precision obtained for the Binary Pulsar B1913+16 could easily detect the effect of mass loss. Observations of a BH--pulsar system could set considerably better limits on these braneworld models than could be determined by torsion-balance gravity experiments in the foreseeable future.

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