Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ap.....49..333s&link_type=abstract
Astrophysics, Volume 49, Issue 3, pp.333-349
Astronomy and Astrophysics
Astrophysics
1
Stars, White Dwarfs, Subdwarfs-Planetary Nebulae
Scientific paper
Results of spectral observations of blue stellar objects from the FBS are presented for the purpose of classifying them, discovering new interesting objects, and studying the FBS sample as a whole. 99 FBS objects in the band with central declination δ = +43° were observed on the 2.6-m telescope at the Byurakan Observatory in 1987 1991 and have been digitized using a professional scanner and processed by MIDAS in a way similar to CCD spectra. 12 objects were also observed with the BAO-2.6 and OHP-1.93 telescopes using modern techniques during 1997 2000; some were repeated observations for confirming or correcting the classifications. A new planetary nebula, 7 white dwarfs, 78 hot subdwarfs, 9 HBB stars, and 6 stars in classes F-G were discovered. Proper motions in the range 57 84 mas/year were obtained for three stars (DA, DAB, and sdB). Three stars (a white dwarf and two subdwarfs) are identified with x-ray sources. The spectra of the 30 most interesting objects are given.
Mickaelian Areg M.
Sinamian P. K.
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