Contenidos
Imágenes
Subir su imagen
DSS Images Other Images
Artículos relacionados
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.
| UVBY photometry of HIPPARCOS stars
Photoelectric data in the uvby system have been obtained for 367southern stars of the Hipparcos Input Catalogue. Most of the stars are Fand G main sequence and fall in the magnitude range V = 9 to 10.
|
Enviar un nuevo artículo
Enlaces relacionados
- - No se han encontrado enlaces -
En viar un nuevo enlace
Miembro de los siguientes grupos:
|
Datos observacionales y astrométricos
| Constelación: | Sagitario |
| Ascensión Recta: | 20h25m01.99s |
| Declinación: | -40°58'25.3" |
| Magnitud Aparente: | 9.438 |
| Movimiento Propio en Ascensión Recta: | 54.8 |
| Movimiento Propio en Declinación: | -31.2 |
| B-T magnitude: | 10.257 |
| V-T magnitude: | 9.506 |
Catálogos y designaciones:
|
