Young stars of low mass in the Gum nebula

Journal Article · Thu Jun 01 00:00:00 EDT 1989 · Publications of the Astronomical Society of the Pacific; (USA)

DOI:https://doi.org/10.1086/132471· OSTI ID:5398440

Graham, J A; Heyer, M H ^[1]

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1. Carnegie Institution of Washington, Washington, DC (USA)

Observations are presented for four recently formed stars in the vicinity of the Gum nebula which are heavily obscured by surrounding dust and are associated with small reflection nebulae. HH46 is the only currently active star of the sample, and it is found to have a spectral type in the range of late G-early K, with superimposed emission lines of H-alpha, Ca II, Fe I, Fe II, and weak He I at near zero velocities. It is suggested that the observed scenario of low-mass stars in an older massive star environment may be analogous to the circumstances surrounding the birth of the sun. 53 refs.

• OSTI ID: 5398440
• Journal Information: Publications of the Astronomical Society of the Pacific; (USA), Vol. 101; ISSN 0004-6280
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
PROTOSTARS
EMISSION SPECTRA
COSMIC DUST
INFRARED RADIATION
MAPS
MASS
NEBULAE
PHOTOMETRY
SPECTROSCOPY
STAR CLUSTERS
STAR EVOLUTION
STELLAR WINDS
DUSTS
ELECTROMAGNETIC RADIATION
RADIATIONS
SPECTRA
STELLAR ACTIVITY
640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources