The peculiar cool white dwarf LHS 1126 - A different interpretation

Details The peculiar cool white dwarf LHS 1126 - A different interpretation The peculiar cool white dwarf LHS 1126 - A different interpretation

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...269..258l&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 269, June 1, 1983, p. 258-263.

Other

21

Peculiar Stars, Stellar Spectrophotometry, White Dwarf Stars, Carbon Stars, Helium, Stellar Atmospheres, Visible Spectrum

Scientific paper

New UBVRI photometry and optical spectra for a cool degenerate star which was recently shown to have depressed H (1.6 microns) and K (2.2 microns) fluxes are presented. The star appears too blue in color to have a 4200 K hydrogen atmosphere, as previously suggested. The spectrum shows a weak, broad absorption near 5000 A, with other broad features possibly present. It is suggested that these are pressure-broadened and shifted C2 (Swan) bands in a helium-rich atmosphere at an effective temperature less than or approximately equal to 5000 K. The infrared absorption may also be due to C2 and possibly CO.

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