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1989•Monthly Notices of the Royal Astronomical SocietyOpen access

Analysis of high-latitude blue stars--III. Three emission-line stars

D. Kilkenny

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Abstract

A simple analysis is made of three high-latitude B stars which have emission lines. Balmer line equivalent widths from Reticon spectrograms together with published Stromgren photometry are used to determine Teff and log g and the He I line widths are used to estimate values of V sin i. The results are checked by fitting Kurucz profiles to the observed Hδ profiles. All three stars appear to be normal Be stars at distances between 3 and 7 kpc from the galactic plane.

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A simple analysis is made of three high-latitude B stars which have emission lines. Balmer line equivalent widths from Reticon spectrograms together with published Stromgren photometry are used to determine Teff and log g and the He I line widths are used to estimate values of V sin i. The results are checked by fitting Kurucz profiles to the observed Hδ profiles. All three stars appear to be normal Be stars at distances between 3 and 7 kpc from the galactic plane.

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Available abstract

A simple analysis is made of three high-latitude B stars which have emission lines. Balmer line equivalent widths from Reticon spectrograms together with published Stromgren photometry are used to determine Teff and log g and the He I line widths are used to estimate values of V sin i. The results are checked by fitting Kurucz profiles to the observed Hδ profiles. All three stars appear to be normal Be stars at distances between 3 and 7 kpc from the galactic plane.

Key concepts: Physics, Stars, Balmer series, Astrophysics, Photometry (optics), Equivalent width, Line (geometry), Astronomy

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