Membership, binarity, reddening and metallicity of red giant candidates in three southern open clusters
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 p...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_17439213_v2_nS241_p239_Claria |
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todo:paper_17439213_v2_nS241_p239_Claria2023-10-03T16:31:31Z Membership, binarity, reddening and metallicity of red giant candidates in three southern open clusters Clariá, J.J. Mermilliod, J.-C. Piatti, A.E. Parisi, M.C. Galaxy: open clusters Radial velocities Techniques: photometric 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. SER info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_17439213_v2_nS241_p239_Claria |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Galaxy: open clusters Radial velocities Techniques: photometric |
| spellingShingle |
Galaxy: open clusters Radial velocities Techniques: photometric 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 |
| topic_facet |
Galaxy: open clusters Radial velocities Techniques: photometric |
| description |
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. |
| format |
SER |
| author |
Clariá, J.J. Mermilliod, J.-C. Piatti, A.E. Parisi, M.C. |
| author_facet |
Clariá, J.J. Mermilliod, J.-C. Piatti, A.E. Parisi, M.C. |
| author_sort |
Clariá, J.J. |
| title |
Membership, binarity, reddening and metallicity of red giant candidates in three southern open clusters |
| title_short |
Membership, binarity, reddening and metallicity of red giant candidates in three southern open clusters |
| title_full |
Membership, binarity, reddening and metallicity of red giant candidates in three southern open clusters |
| title_fullStr |
Membership, binarity, reddening and metallicity of red giant candidates in three southern open clusters |
| title_full_unstemmed |
Membership, binarity, reddening and metallicity of red giant candidates in three southern open clusters |
| title_sort |
membership, binarity, reddening and metallicity of red giant candidates in three southern open clusters |
| url |
http://hdl.handle.net/20.500.12110/paper_17439213_v2_nS241_p239_Claria |
| work_keys_str_mv |
AT clariajj membershipbinarityreddeningandmetallicityofredgiantcandidatesinthreesouthernopenclusters AT mermilliodjc membershipbinarityreddeningandmetallicityofredgiantcandidatesinthreesouthernopenclusters AT piattiae membershipbinarityreddeningandmetallicityofredgiantcandidatesinthreesouthernopenclusters AT parisimc membershipbinarityreddeningandmetallicityofredgiantcandidatesinthreesouthernopenclusters |
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1807317515799363584 |