DISTRIBUTION OF CARBON STARS IN THE GALAXY

DISTRIBUTION OF CARBON STARS IN THE GALAXY

A search for new faint carbon (C) stars in the Polar region δ > 55o has been accomplished by obtaining objective prism spectra in the near infrared 550 -- 900 nm on images of CCD camera of Baldone Schmidt telescope of Astrophysical observatory. The positions of stars   having color indices (J – K...

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Main Authors: I. Eglitis, A. Sokolova
Format: Article
Language:English
Published: Odessa I. I. Mechnykov National University 2018-10-01
Series:Odessa Astronomical Publications
Subjects:
circumstellar mater
near infrared
carbon stars
absolute magnitude
distance
Online Access:http://oap.onu.edu.ua/article/view/144459
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spelling doaj-39923913ddc747c58bb515cf1cad8ff72020-11-25T02:17:10ZengOdessa I. I. Mechnykov National UniversityOdessa Astronomical Publications1810-42152018-10-01310707410.18524/1810-4215.2018.31.144459144459DISTRIBUTION OF CARBON STARS IN THE GALAXYI. Eglitis0A. Sokolova1Institute of Astronomy of the University of LatviaInstitute of Astronomy of the University of LatviaA search for new faint carbon (C) stars in the Polar region δ > 55o has been accomplished by obtaining objective prism spectra in the near infrared 550 -- 900 nm on images of CCD camera of Baldone Schmidt telescope of Astrophysical observatory. The positions of stars   having color indices (J – K) > 1.3 mag in Two Micron All Sky Infrared Survey (2MASS) were selected to pick out suspicious carbon stars. Our survey is limited in brightness by J < 10 mag. 24 new carbon stars were found and their characteristics obtained. The correlative relation between Teff  and spectral gradient [757 – 685] was confirmed. Such characteristics as Teff, distance from the Sun, absolute Mk  were obtained for newly discovered carbon stars.http://oap.onu.edu.ua/article/view/144459circumstellar maternear infraredcarbon starsabsolute magnitudedistance
collection DOAJ
language English
format Article
sources DOAJ
author I. Eglitis
A. Sokolova
spellingShingle I. Eglitis
A. Sokolova
DISTRIBUTION OF CARBON STARS IN THE GALAXY
Odessa Astronomical Publications
circumstellar mater
near infrared
carbon stars
absolute magnitude
distance
author_facet I. Eglitis
A. Sokolova
author_sort I. Eglitis
title DISTRIBUTION OF CARBON STARS IN THE GALAXY
title_short DISTRIBUTION OF CARBON STARS IN THE GALAXY
title_full DISTRIBUTION OF CARBON STARS IN THE GALAXY
title_fullStr DISTRIBUTION OF CARBON STARS IN THE GALAXY
title_full_unstemmed DISTRIBUTION OF CARBON STARS IN THE GALAXY
title_sort distribution of carbon stars in the galaxy
publisher Odessa I. I. Mechnykov National University
series Odessa Astronomical Publications
issn 1810-4215
publishDate 2018-10-01
description A search for new faint carbon (C) stars in the Polar region δ > 55o has been accomplished by obtaining objective prism spectra in the near infrared 550 -- 900 nm on images of CCD camera of Baldone Schmidt telescope of Astrophysical observatory. The positions of stars   having color indices (J – K) > 1.3 mag in Two Micron All Sky Infrared Survey (2MASS) were selected to pick out suspicious carbon stars. Our survey is limited in brightness by J < 10 mag. 24 new carbon stars were found and their characteristics obtained. The correlative relation between Teff  and spectral gradient [757 – 685] was confirmed. Such characteristics as Teff, distance from the Sun, absolute Mk  were obtained for newly discovered carbon stars.
topic circumstellar mater
near infrared
carbon stars
absolute magnitude
distance
url http://oap.onu.edu.ua/article/view/144459
work_keys_str_mv AT ieglitis distributionofcarbonstarsinthegalaxy
AT asokolova distributionofcarbonstarsinthegalaxy
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