New spectral types for white dwarfs previously thought to be of class DC

Details New spectral types for white dwarfs previously thought to be of class DC New spectral types for white dwarfs previously thought to be of class DC

Jul 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983aj.....88.1034w&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 88, July 1983, p. 1034-1037.

Astronomy and Astrophysics

Astronomy

13

Stellar Spectra, Stellar Temperature, White Dwarf Stars, Carbon Stars, H Lines, Helium, High Resolution, Swan Bands

Scientific paper

The visual spectra of 18 white dwarfs previously given spectral type DC have been reexamined using the image intensified dissector scanner on the Kitt Peak 2.1-m telescope. With this new high signal-to-noise data, only eight stars remain classified DC, while two are cool narrow lined DA, three appear as cool DB, two show evidence of the Swan bands of the C2 molecule, and one may have an unidentified feature near λ5000. The remaining object is of a new variety, hitherto unreported, that has its spectrum dominated by C I lines.

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