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Late-type stars found in the FBS. New carbon stars.
- Source :
-
Astrophysics . Apr2008, Vol. 51 Issue 2, p209-217. 9p. 1 Black and White Photograph, 3 Charts, 3 Graphs. - Publication Year :
- 2008
-
Abstract
- We present new observations of seven late-type stars previously discovered in the First Byurakan Survey (FBS). These observations prove that they belong to the family of carbon (C) stars. Seventy-nine similar FBS C stars were previously known. The seven objects under analysis were presented in the FBS lists as M or C star candidates. Among the seven objects, six objects are confirmed by low-resolution spectra of the Hamburg Quasar Objective-Prism Survey. We also present for five of them moderate-resolution spectra obtained at optical wavelengths with a spectrograph equipped with a CCD detector. Three objects can be classified as N-type C stars. One object is an early CH-type C star. Most likely, the star FBS 1339+117 belongs to the group of carbon dwarfs. We estimate distances of these seven new C stars either by using their red-band magnitudes, or by using their near-infrared 2MASS J-KS color and KS-band magnitudes. [ABSTRACT FROM AUTHOR]
- Subjects :
- *STARS
*GALAXIES
*N stars
*COOL stars (Astronomy)
*ASTRONOMICAL observations
Subjects
Details
- Language :
- English
- ISSN :
- 05717256
- Volume :
- 51
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Astrophysics
- Publication Type :
- Academic Journal
- Accession number :
- 33635619
- Full Text :
- https://doi.org/10.1007/s10511-008-9009-5