Physics
Scientific paper
Feb 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1094..880s&link_type=abstract
COOL STARS, STELLAR SYSTEMS AND THE SUN: Proceedings of the 15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun.
Physics
Faint Blue Stars, White Dwarfs, Degenerate Stars, Nuclei Of Planetary Nebulae, Circumstellar Shells, Clouds, And Expanding Envelopes, Circumstellar Masers, Photometric, Polarimetric, And Spectroscopic Instrumentation
Scientific paper
The spectroscopy of two carbon-rich mass-loosing variables-R Leporis and DY Persei -is presented. High-resolution echelle spectra of carbon Mira R Lep were observed for two seasons. The heliocentric photospheric radial velocity was found to be +32.6 and +38.4 km/s respectively. Strong emission in atomic resonance lines and C2 Swan system bandhead at 5165 Å was detected, which was apparently the result of dust formation and ejection. The spectroscopical features of the extremely cool R Coronae Borealis star DY Per indicate the presence of surrounding clouds of gas and dust ejected by this star.
Alksnis O.
Musaev Faig
Smirnova Olga
Zacs Laimons
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