Artículo
Abstract:
37 potential members of the red-giant branches of NGC 6192, NGC 6208 and NGC 6268 were observed in the UBV system, while 22 of them were also observed in the DDO system. The observations were made at La Silla and Cerro Tololo Inter-American observatories (Chile), using pulse-counting photoelectric photometers. Coravel radial velocities (RVs) were obtained at La Silla for 24 red giant candidates in the three clusters. Five stars of NGC 6192 have RVs in the narrow range -8.8 km/s < VR < -6.4 km/s, including two new spectroscopic binaries (SBs). Three stars of NGC 6208 including a new SB and three stars of NGC 6268 show similar RVs so that their physical membership to NGC 6208 and NGC 6268, respectively, is highly probable. Mean radial velocities are: -7.7 0.38 km/s (NGC 6192), -32.21 0.28 km/s (NGC 6208) and -15.11 0.08 km/s (NGC 6268). We have also derived the following mean E(B-V) values from Janes (1977) iterative method: 0.63 0.02 (NGC 6192), 0.31 0.02 (NGC 6208) and 0.43 0.02 (NGC 6268). © 2007 International Astronomical Union.
Registro:
| Documento: | Artículo |
| Título: | Membership, binarity, reddening and metallicity of red giant candidates in three southern open clusters |
| Autor: | Clariá, J.J.; Mermilliod, J.-C.; Piatti, A.E.; Parisi, M.C. |
| Filiación: | Observatorio Astronómico, Universidad Nacional de Córdoba, Argentina Laboratoire d'Astrophysique, É'Cole Polytechnique Fédérale de Lausanne, Switzerland Instituto de Astronomía y Física Del Espacio, Bs. As., Argentina |
| Palabras clave: | Galaxy: open clusters; Radial velocities; Techniques: photometric |
| Año: | 2006 |
| Volumen: | 2 |
| Número: | S241 |
| Página de inicio: | 239 |
| Página de fin: | 240 |
| DOI: | http://dx.doi.org/10.1017/S1743921307008010 |
| Título revista: | Proceedings of the International Astronomical Union |
| Título revista abreviado: | Proc. Int. Astron. Union |
| ISSN: | 17439213 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17439213_v2_nS241_p239_Claria |
Referencias:
- Clark, J.S., Neguerela, I., Crowther, P.A., Goodwin, P., (2005) A&A, 434, p. 949
- Girardi, L., Bressan, A., Bertelli, G., Chiosi, C., (2000) A&A, 141, p. 371
- Janes, K.A., (2000) PASP, 89, p. 576
- King, D.J., (1987) The Observatory, 107, p. 107
- Paunzen, E., Maitzen, J.M., (2001) A&A, 373, p. 153
- Piatti, A.E., Clariá, J.J., Minniti, D., (1993) JA&A, 14, p. 145
Citas:
---------- APA ----------
Clariá, J.J., Mermilliod, J.-C., Piatti, A.E. & Parisi, M.C. (2006) . Membership, binarity, reddening and metallicity of red giant candidates in three southern open clusters. Proceedings of the International Astronomical Union, 2(S241), 239-240.http://dx.doi.org/10.1017/S1743921307008010
---------- CHICAGO ----------
Clariá, J.J., Mermilliod, J.-C., Piatti, A.E., Parisi, M.C. "Membership, binarity, reddening and metallicity of red giant candidates in three southern open clusters" . Proceedings of the International Astronomical Union 2, no. S241 (2006) : 239-240.http://dx.doi.org/10.1017/S1743921307008010
---------- MLA ----------
Clariá, J.J., Mermilliod, J.-C., Piatti, A.E., Parisi, M.C. "Membership, binarity, reddening and metallicity of red giant candidates in three southern open clusters" . Proceedings of the International Astronomical Union, vol. 2, no. S241, 2006, pp. 239-240.http://dx.doi.org/10.1017/S1743921307008010
---------- VANCOUVER ----------
Clariá, J.J., Mermilliod, J.-C., Piatti, A.E., Parisi, M.C. Membership, binarity, reddening and metallicity of red giant candidates in three southern open clusters. Proc. Int. Astron. Union. 2006;2(S241):239-240.http://dx.doi.org/10.1017/S1743921307008010
