Hipparcos results on massive X-ray binaries
| dc.creator | Chevalier, Claude | |
| dc.creator | Ilovaisky, Sergio A. | |
| dc.date | 1997-10-01 | |
| dc.date.accessioned | 2026-07-07T02:24:23Z | |
| dc.date.available | 2026-07-07T02:24:23Z | |
| dc.description | We present results on parallaxes, magnitudes and proper motions for 17 optically identified massive X-ray binaries (MXRB) which were observed during the Hipparcos astrometry mission. This sample includes the sources detected in the medium-energy range (2-10 keV) having optical counterparts brighter than V=12. We compare the Hipparcos results with ground-based optical data and derive probable values for absolute magnitudes and peculiar tangential velocities (v_t). The 4 OB supergiant systems in our sample are high-velocity objects (the average value of v_t is greater than 60 km/s), while the 13 Be systems have low velocities (<v_t> = 11.3 +/- 6.7 km/s), suggesting a different formation mechanism for the two subgroups. The unusual X-ray/radio source LSI+61 303 lies much closer than previously believed and its low optical luminosity (M_V = +2.2) and blue intrinsic colors now suggest it may be a peculiar type of low-mass X-ray binary. | |
| dc.description | 5 pages, LaTeX, uses aa.cls, Astronomy and Astrophysics (accepted), also available at http://www.obs-hp.fr/www/preprints/pp109/abspp109.html | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9710008 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9710008 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/11599 | |
| dc.subject | Astrophysics | |
| dc.title | Hipparcos results on massive X-ray binaries | |
| dc.type | text |