Other
Scientific paper
Jan 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985mnras.212..325m&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 212, Jan. 15, 1985, p. 325-335.
Other
15
Stellar Luminosity, Stellar Spectra, Stellar Spectrophotometry, White Dwarf Stars, Emission Spectra, Prisms, Slits, Stellar Magnitude
Scientific paper
This paper describes the objective prism study of 753 stellar objects (606 with B ≤ 20.0) in a survey field of 0.31 degree2 at l = 36°.5, b = -51°.1. Slit spectra were obtained for 103 of the objects, including 33 classified as possibly unusual from the prism images. All the slit spectra revealed normal stars except 7 of the latter group, 3 of which turned out to be white dwarfs, and 4 to be QSOs. The authors found no evidence for other objects with noticeable emission lines or an unusual energy distribution between 3200 and 5000 Å. The number of white dwarfs is consistent with the model of the galactic disc adopted by Bahcall & Soneira, but favours the higher density luminosity function for white dwarfs of Green and Liebert, Dahn & Sion. One of the white dwarfs belongs to the rare class of DF or DZ. The authors also present finding charts for all objects in the survey.
Krug P. A.
Morton Donald C.
Tritton K. P.
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