Document Type
Article
Publication Date
12-1-2013
Abstract
Some Galactic models predict a significant population of radio pulsars close to the Galactic center. Beams from these pulsars could be strongly deflected by the supermassive black hole (SMBH) believed to reside at the Galactic center and as a result reach Earth. Earlier work assuming a Schwarzschild SMBH gave marginal chances of observing this exotic phenomenon with current telescopes and good chances with future telescopes. Here we study whether those estimates are significantly affected by SMBH spin. We find that spin effects make a negligible difference in detectability, but the pattern of pulse arrival times is clearly affected. In particular, if strongly deflected beams are detected, the SMBH spin signature could be extracted from pulsar beam times of arrival. © 2013. The American Astronomical Society. All rights reserved..
Recommended Citation
Sourabh Nampalliwar, et. al., (2013) Detection of pulsar beams deflected by the black hole in SGR A*: Effects of black hole spin.Astrophysical Journal778:2. DOI: http://doi.org/10.1088/0004-637X/778/2/145
Publication Title
Astrophysical Journal
DOI
10.1088/0004-637X/778/2/145
Comments
© Astrophysical Journal. Original version available at: http://doi.org/10.1088/0004-637X/778/2/145