Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ap.....49..173g&link_type=abstract
Astrophysics, Volume 49, Issue 2, pp.173-183
Astronomy and Astrophysics
Astrophysics
3
Stars, Carbon
Scientific paper
Using recent astronomical databases, we investigate the characteristics of a list of new Galactic carbon (C) stars. These stars were discovered on the First Byurakan Spectral Sky Survey (FBS) plates and constitute the second part of our search for such objects. This second list of FBS C stars contains 44 objects. Slit spectra obtained by us with the BAO 2.6-m telescope confirm the carbon-rich nature of all of them. The list comprises 12 N-type carbon stars and 32 CH-type stars. We consider spectral types, B and R magnitudes retrieved from the USNO-B1.0 catalog, and JHKs near-infrared photometry for stars extracted from the 2MASS point-source catalog. The R magnitudes of our objects are in the range 10 to 14. We derive distance estimates for all objects and find that most of the stars are located between approximately 3 and 20 kpc from the Sun. Their heights above or below the Galactic plane are in the range 1.5 to 13.0 kpc.
Gigoyan Kamo S.
Mauron Nicolas
Mickaelian Areg M.
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