Overlapping Open Clusters NGC 1750 and NGC 1758 behind the Taurus Dark Clouds. II. CCD Photometry in the Vilnius System
| Autor: | F. Smriglio, A. Cerniauskas, R. P. Boyle, V. Laugalys, A. G. Davis Philip, Algirdas Kazlauskas, K. Černis, V. Straižys, F. J. Vrba |
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| Jazyk: | angličtina |
| Rok vydání: | 2003 |
| Předmět: |
individual objects
Astronomy Extinction (astronomy) QB1-991 Astrophysics Hubble sequence Photometry (optics) symbols.namesake photometric vilnius photometric system stars Stellar evolution Physics extinction Astronomy and Astrophysics dust clouds open clusters Stars Space and Planetary Science ngc 1758 symbols Spectrum analysis techniques classification ism ngc 1750 Open cluster fundamental parameters |
| Zdroj: | Open Astronomy, Vol 12, Iss 3, Pp 323-351 (2003) |
| ISSN: | 2543-6376 |
| Popis: | Seven-color photometry in the Vilnius system has been obtained for 420 stars down to V=16 mag in the area containing the overlapping open clusters NGC 1750 and NGC 1758 in Taurus. Spectral and luminosity classes, color excesses, interstellar extinctions, and interstellar distances are given for 287 stars. The classification of stars is based on their reddening-free Q-parameters. Eighteen stars observed photoelectrically were used as standards. The extinction versus distance diagram exhibits the presence of one dust cloud at a distance of 175 pc, which almost coincides with the distance of other dust clouds in the Taurus complex. The clusters NGC 1750 and NGC 1758 are found to be at the same distance of approximately 760 pc and may penetrate each other. Their interstellar extinction A(V) is 1.06 mag, which corresponds to E(B-V) = 0.34 mag. (3 tables, 5 figures, 10 refs.) |
| Databáze: | OpenAIRE |
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