Browsing by Subject "F Stars"

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IUE observations of high galactic latitude F supergiants HD 161796 and HD 187885

Parthasarathy, M; Pottasch, S. R; Wamsteker, W (European Southern Observatory, 1988-09)

Low resolution (6 A) IUE ultraviolet spectra of the high galactic latitude F supergiants HD 161796 (F3 Ib) and HD 187885 (F2-3I) are analyzed. The UV spectrum (1250 A to 3250 A) of HD 161796 shows no excess UV flux ...
A photometric study of F-type stars of high galactic latitude

Ferro, A. A; Giridhar, S; Chavez, M; Parrao, L (European Southern Observatory, 1989-04)

Photometry in the O I 7774 A line and the uvbybeta system is presented for a group of high Galactic latitude F-type luminosity type I stars. The results indicate that the candidates are high gravity near solar Fe/H abundance ...
Possible proto-planetary nebulae

Parthasarathy, M (Cambridge University Press, 1989)

IRAS data for high-galactic-latitude F supergiants, a few luminous F-G stars, and a few peculiar (forbidden) emission-line stars reveal they have dust shells with characteristics similar to those observed in planetary ...

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