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Search for associations containing young stars (SACY). I. Sample and searching method
We report results from a high-resolution optical spectroscopic surveyaimed to search for nearby young associations and young stars amongoptical counterparts of ROSAT All-Sky Survey X-ray sources in theSouthern Hemisphere. We selected 1953 late-type (B-V~≥~0.6),potentially young, optical counterparts out of a total of 9574 1RXSsources for follow-up observations. At least one high-resolutionspectrum was obtained for each of 1511 targets. This paper is the firstin a series presenting the results of the SACY survey. Here we describeour sample and our observations. We describe a convergence method in the(UVW) velocity space to find associations. As an example, we discuss thevalidity of this method in the framework of the β Pic Association.
| New Elements for 80 Eclipsing Binaries III.
This research presents new elements for 80 eclipsing binaries found withthe help of the ASAS-3 and Hipparcos databases.
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Datos observacionales y astrométricos
| Constelación: | Vela |
| Ascensión Recta: | 09h04m38.42s |
| Declinación: | -41°03'52.6" |
| Magnitud Aparente: | 8.913 |
| Distancia: | 173.01 parsecs |
| Movimiento Propio en Ascensión Recta: | 15.7 |
| Movimiento Propio en Declinación: | 39.3 |
| B-T magnitude: | 9.63 |
| V-T magnitude: | 8.973 |
Catálogos y designaciones:
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