A multiwavelength study of the Carlson-Henize sample of early-type Galactic extreme emission-line stars

Journal Article · Sun Jul 01 00:00:00 EDT 1990 · Astrophysical Journal, Supplement Series; (USA)

DOI:https://doi.org/10.1086/191476· OSTI ID:6598000

Shore, S N; Brown, D N; Bopp, B W; Robinson, C R; Sanduleak, N ^[1]

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1. New Mexico Institute of Mining and Technology, Socorro (USA) Washington Univ., Seattle (USA) Ritter Observatory, Toledo, OH (USA) Warner and Swasey Observatory, Cleveland, OH (USA)

A UV, optical, and radio study of nine early spectral type extreme emission-line Galactic stars from the Carlson and Henize (1979) sample is presented. He 3-407 and He 3-1482 appear to be analogs of the massive evolved B(e) and luminous blue variable stars of the Magellanic Clouds. The sample appears to be confined to a narrow range in spectral type from about B0 to B6. Most of the observed stars do not show strong N emission, with the striking exception of He 3-1482, and these Galactic stars may not have mixed significant quantities of nitrogen into their envelopes, unlike many of the LMC supergiants, Most of the Galactic stars are considerably fainter than those in the Magellanic Clouds, although their spectral properties are quite similar. 26 refs.

• OSTI ID: 6598000
• Journal Information: Astrophysical Journal, Supplement Series; (USA), Vol. 73; ISSN 0067-0049
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
STARS
EMISSION SPECTRA
CHEMICAL COMPOSITION
COMPARATIVE EVALUATIONS
LUMINOSITY
MAGELLANIC CLOUDS
MILKY WAY
NITROGEN
RADIOWAVE RADIATION
SUPERGIANT STARS
ULTRAVIOLET SPECTRA
VARIABLE STARS
VISIBLE SPECTRA
ELECTROMAGNETIC RADIATION
ELEMENTS
GALAXIES
GIANT STARS
NONMETALS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATIONS
SPECTRA
640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources