UBV(RI)(C) photometry of the open clusters Be 15, Be 80 and NGC 2192
Por:
Tapia M.T., Schuster W.J., Michel R., Chavarría-K. C., Dias W.S., Vázquez R., Moitinho A.
Publicada:
1 ene 2010
Resumen:
The three open clusters Be 15, Be 80 and NGC 2192 have been observed using CCD UBV(RI)(C) photometry at the San Pedro Martir Observatory, Mexico within the framework of our open-cluster survey. The fundamental parameters of interstellar reddening, distance and age have been derived, and also the metallicity for NGC 2192 (solar metallicity has been assumed for the other two). By shifting the colours of Schmidt-Kaler in the (U - B, B - V) two-colour diagram along the appropriate reddening vector, the interstellar reddenings have been derived as E(B - V) = 0.23 +/- 0.03 mag for Be 15, 1.31 +/- 0.05 for Be 80, and 0.16 +/- 0.03 for NGC 2192. Evidence is shown for a variable interstellar extinction across the cluster Be 80. For NGC 2192, a nicely consistent fit is obtained for both the interstellar reddening and the metallicity ([Fe/H] = -0.31) using simultaneously the F-type and red-clump stars. By fitting isochrones to the observed sequences of these three clusters in various colour-magni
Filiaciones:
Tapia M.T.:
Univ Nacl Autonoma Mexico, Inst Astron, Ensenada 22860, Baja California, Mexico
Schuster W.J.:
Univ Nacl Autonoma Mexico, Inst Astron, Ensenada 22860, Baja California, Mexico
Michel R.:
Univ Nacl Autonoma Mexico, Inst Astron, Ensenada 22860, Baja California, Mexico
Chavarría-K. C.:
Univ Nacl Autonoma Mexico, Inst Astron, Ensenada 22860, Baja California, Mexico
Dias W.S.:
UNIFEI, Instituto de Ciências Exatas, Universidade Federal de Itajubá, Itajubá MG, Brazil
Vázquez R.:
Univ Nacl Autonoma Mexico, Inst Astron, Ensenada 22860, Baja California, Mexico
Moitinho A.:
SIM/IDL, Fac. de Ciencias, Universidade de Lisboa, Ed. C8, Campo Grande, 1749-016 Lisboa, Portugal
Bronze
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