2008ApJ...688.1282P

Query : 2008ApJ...688.1282P

2008ApJ...688.1282P - Astrophys. J., 688, 1282-1287 (2008/December-1)

Constraining Brans-Dicke gravity with accreting millisecond pulsars in ultracompact binaries.

PSALTIS D.

Abstract (from CDS):

The five accreting, millisecond X-ray pulsars in ultracompact binaries that were recently discovered with the Rossi X-Ray Timing Explorer provide excellent candidates for constraining the deviations from general relativity described by the Brans-Dicke parameter ωBD. I calculate the expected rate of change of the orbital periods of these binaries and discuss the prospects of constraining ωBD to values that can be as stringent as current solar system constraints. Finally, I show how measurements of the orbital period derivative in ultracompact binaries can be used to place lower bounds on their orbital inclinations.

Abstract Copyright: ∼

Journal keyword(s): Gravitation - Relativity - X-Rays: Binaries

Simbad objects: 8

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Number of rows : 8
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* V1037 Cas LXB 00 29 03.06 +59 34 19.0           ~ 283 1
2 V* BW Ant LXB 09 29 20.19 -31 23 03.2   18.50 18.63     ~ 194 0
3 [KRL2007b] 291 LXB 17 51 13.49 -30 37 23.4           ~ 262 0
4 [KRL2007b] 304 LXB 18 06 59.8 -29 24 30           ~ 228 0
5 SAX J1808.4-3658 LXB 18 08 27.58 -36 58 43.9           ~ 1051 0
6 V* V5511 Sgr LXB 18 13 39.03 -33 46 22.3   18.61 18.33 18.05   ~ 215 0
7 NGC 6624 GlC 18 23 40.51 -30 21 39.7           ~ 939 1
8 X Sgr X-4 LXB 18 23 40.57 -30 21 40.6   19.06 18.81     ~ 1056 1

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