Ultra-compact X-ray binaries

VALUES LIKE [X] ARE “(BEST) GUESSES” AND THUS MAY BE COMPLETELY WRONG. VALUES LIKE X? ARE UNCERTAIN.

Name Period Pdot d m2,min q M1 i Mv V RA DEC l b
[s] [s/s] [pc] Msun Msun [deg] [h:m:s] [d:m:s] [deg] [deg]
4U 1820-30 685(2) 7600 ~0.06 1.4? 3.7 18.8 18:23:40.45-30:21:40.12.79 7.91
4U 0513-40 1020(20) 12100 ~0.04 1.4? 05:14:06.46-40:02:38.222244.51-35.04
2S 0918-549 1043(6) 5000 ~0.04 1.4? ~10 09:20:26.47-55:12:24.5275.85-3.85
4U 1543-624 1092(6) [5000] ~0.04 1.4? 15:47:54.29-62:34:11.2321.76-6.34
4U 1850-087 1236 8200 ~0.03 1.4? 5.1 21 18:53:04.86-08:42:20.425.36 -4.32
M15 X-2 1355 10000 ~0.03 1.4? 18.6 (U) 21:29:58.06+12:10:02.665.01 -27.31
XTE J1807-294 2412 8500 ~0.02 1.4?
4U 1626-67 2520 5000 ~0.02 1.4?
4U 1626-67 2520 5000 ~0.02 1.4?

4U 1820-30

In globular cluster NGC 6624. Period from Stella et al. 1987. Van der Klis et al. 1993 find \dotP/P = -5.3(1.1)e-8 yr^-1. V and coordinates from Simbad.

4U 0513-40

In globular cluster NGC 1851, period from UV Zurek et al. 2009

2S 0918-549

Period and inclination from Zhong & Wang 2010

4U 1543-624

Period from Wang & Chakrabarty 2004. Coordinates from Simbad.

4U 1850-087

Period from Homer et al. 1996. In globular cluster NGC 6712. V and coordinates from Simbad.

M15 X-2

Position and bringtness from 2001ApJ...561L.101W, period from 2005ApJ...634L.105D

 
verification_binaries/ultra-compact_x-ray_binaries.txt · Last modified: 2011/04/26 10:09 (external edit)
 
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