Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...248..150h&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 248, no. 1, Aug. 1991, p. 150-154.
Astronomy and Astrophysics
Astrophysics
19
A Stars, Iue, Pre-Main Sequence Stars, Stellar Evolution, Stellar Spectra, Emission Spectra, Hertzsprung-Russell Diagram, Line Spectra, Stellar Composition, Stellar Mass, Ultraviolet Spectra
Scientific paper
IUE observations are noted to indicate that HD 104237 exhibits the same UV, visible, and IR spectral properties as the Herbig Ae stars AB Aur and HR 5999. It is accordingly concluded that HD 104237 is a 2.1 solar-mass Herbig AE star. With respect to HR 5999, the chromospheric and transition region emission-line flux of HD 104237 is sufficiently large to permit the detection of these lines. A study of the relation of different levels of chromospheric activities and evolutionary stage of intermediate, premain-sequence stars is projected to be able to contribute to the understanding of the premain-sequence evolution of the intermediate-mass stars, during the final contraction phase.
Blondel P. F. C.
Catala Claude
de Winter Dolf
Hu Jiang-Yao
Talavera Antonio
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