Oxygen-Rich Cool Stars in the Cepheus Region. New Spectroscopic Observations of Selected Objects from the KP2001 Catalog

Spectra taken with the 2.6-m telescope at the Byurakan Astrophysical Observatory (BAO) in the λλ4000-7250Å range for eight M giants from the KP2001 catalog confirm their oxygen-rich nature. The features of these spectra are examined. Several important physical parameters from the EDR3 Gaia data base...

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Bibliographic Details
Published in:	Astrophysics Vol. 64; no. 2; pp. 203 - 209
Main Authors:	Petrosyan, G. V., Gigoyan, K. S., Karapetyan, E., Kostandyan, G. R.
Format:	Journal Article
Language:	English
Published:	New York Springer US 01-06-2021 Springer Springer Nature B.V
Subjects:	Astronomy Astrophysical observatories Astrophysics Astrophysics and Astroparticles Astrophysics and Cosmology Cepheus constellation Cool stars Observations and Techniques Oxygen Physical properties Physics Physics and Astronomy Space Exploration and Astronautics Space Sciences (including Extraterrestrial Physics Spectra Telescope survey stars classification variability
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Summary:	Spectra taken with the 2.6-m telescope at the Byurakan Astrophysical Observatory (BAO) in the λλ4000-7250Å range for eight M giants from the KP2001 catalog confirm their oxygen-rich nature. The features of these spectra are examined. Several important physical parameters from the EDR3 Gaia data base are presented. The optical variability is studied using ASAS-SN monitoring data.
ISSN:	0571-7256 1573-8191
DOI:	10.1007/s10511-021-09681-4