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| Query : 1999A&A...350.1085C |
1999A&A...350.1085C - Astronomy and Astrophysics, volume 350, 1085-1088 (1999/10-3)
The distance to eight X-ray sources derived from Hipparcos observations.
CLARK L.L. and DOLAN J.F.
Abstract (from CDS):
The parallaxes of eight galactic X-ray sources measured by Hipparcos are consistent with zero in all but two cases, 4U1145-619 (= Cen X-5) and HZ43. The parallax and proper motion measured for each of the others, including the Be/neutron star binaries X Per and A0535+26 and the massive X-ray binaries 4U0900-40, 4U1700-37, and Cyg XR-1, are consistent with their spectroscopic parallaxes. These results provide no evidence that visible stars in X-ray binaries have a luminosity that is abnormal for their spectral type.
Abstract Copyright: ∼
Journal keyword(s): astrometry - stars: distances - stars: kinematics - X-rays: stars
Simbad objects: 9
| Number of rows : 9 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2024 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | LS I +61 303 | HXB | 02 40 31.6644419688 | +61 13 45.593918580 | 11.27 | 11.61 | 10.75 | 10.19 | 9.55 | B0Ve | 852 | 2 |
| 2 | V* X Per | HXB | 03 55 23.0777456088 | +31 02 45.039836148 | 6.090 | 6.840 | 6.720 | O9.5III | 977 | 0 | ||
| 3 | HD 245770 | HXB | 05 38 54.5748918624 | +26 18 56.836952784 | 9.30 | 9.84 | 9.39 | 8.77 | 8.30 | O9/B0III/Ve | 982 | 0 |
| 4 | V* GP Vel | HXB | 09 02 06.8608812864 | -40 33 16.899168060 | 6.85 | 7.37 | 6.87 | 6.31 | 6.05 | B0.5Ia | 1504 | 0 |
| 5 | HD 102567 | HXB | 11 48 00.0214464120 | -62 12 24.902384760 | 8.24 | 9.06 | 9.00 | 9.62 | B1Vne | 318 | 0 | |
| 6 | HZ 43A | WD* | 13 16 21.8532409720 | +29 05 55.411186877 | 12.52 | 12.66 | DAwk | 467 | 0 | |||
| 7 | V* V861 Sco | EB* | 16 56 35.9776521336 | -40 49 24.443276592 | 5.86 | 6.51 | 6.22 | 5.92 | 5.64 | B2Iab/b | 221 | 0 |
| 8 | HD 153919 | HXB | 17 03 56.7725629224 | -37 50 38.913331452 | 6.06 | 6.78 | 6.51 | 6.08 | 5.90 | O6Iafcp | 813 | 1 |
| 9 | HD 226868 | HXB | 19 58 21.6757355952 | +35 12 05.784512688 | 9.38 | 9.72 | 8.91 | 8.42 | O9.7Iabpvar | 4336 | 0 |
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