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- W2078798045 abstract "During the course of a survey for ultraviolet-excess objects, a group of objects were found that spectroscopically resemble the subdwarf B stars, except for variable strength H-alpha absorption. The H-alpha line can have the nominal strength predicted from the other Balmer lines, or it can be completely absent. Observations reveal significant changes in the H-alpha profile on both a night-to-night and month-to-month basis. IUE observations of three stars reveal few features in the ultraviolet region and, when combined with optical data, allow a rough determination of photospheric temperatures. A binary model is proposed for these systems, and the ramifications of the objects found here and in the Palomar-Green survey are discussed." @default.
- W2078798045 created "2016-06-24" @default.
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- W2078798045 date "1987-05-01" @default.
- W2078798045 modified "2023-09-27" @default.
- W2078798045 title "The stars with H-alpha missing" @default.
- W2078798045 doi "https://doi.org/10.1086/165241" @default.
- W2078798045 hasPublicationYear "1987" @default.
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