Physics – Optics
Scientific paper
Apr 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26as...88...47s&link_type=abstract
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 88, no. 1, April 1991, p. 47-62. Research supported by Depar
Physics
Optics
8
Astronomical Photometry, Astronomical Spectroscopy, Charge Coupled Devices, Fiber Optics, Open Clusters, Stellar Spectra, Color-Magnitude Diagram, Emission Spectra, Radial Velocity, Southern Sky
Scientific paper
New spectroscopic and photometric observations are presented for a sample of faint stars which extends the color-magnitude diagram of the open cluster NGC 3114 down to V = 16 mag. The distance to the cluster is estimated as 940 + or - 60 pc. The spectroscopic observations indicate the presence of six CaII emitters in a sample of 55 stars. Radial velocity measurements and spectral classification have been carried out for all the 55 stars. Both spectroscopic and photometric observations indicate the presence of a large number of field stars in the direction of the cluster. Isochrones fitted to the color-magnitude diagram as well as the position of the red giant concentration indicate that the age of the cluster is about 1-2 x 10 to the 8th yr.
Sagar Ram
Sharples Ray M.
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