Naked T Tauri stars - the low-mass pre-main sequence unveiled

Journal Article · Thu Jan 01 04:00:00 EST 1987 · Publ. Astron. Soc. Pac.; (United States)

DOI:https://doi.org/10.1086/131952· OSTI ID:6463106

Walter, F M

The search for low-mass premain-sequence (PMS) stars associated with X-ray sources in regions of star formation is discussed. The survey to date has revealed at least 30 low-mass PMS stars in the Tau-Aur region, and a comparable number in Oph. These stars are the naked T Tau stars, unveiled versions of the well-known classical T Tau stars. The properties of these newly discovered PMS stars and their relation to the classical T Tau stars are discussed, and it is concluded that the naked T Tau stars are the true low-mass PMS stars, and that the observable characteristics defining the classical T Tau stars are due to the interaction of an underlying, fairly normal star with a dominant circumstellar environment. The impact the naked T Tau stars are likely to have on models of the PMS evolution of low-mass stars is considered. 24 references.

• Research Organization: Colorado Univ., Boulder
• OSTI ID: 6463106
• Journal Information: Publ. Astron. Soc. Pac.; (United States), Journal Name: Publ. Astron. Soc. Pac.; (United States) Vol. 99; ISSN PASPA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BALMER LINES
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
DIAGRAMS
ERUPTIVE VARIABLE STARS
HERTZSPRUNG-RUSSELL DIAGRAM
MAIN SEQUENCE STARS
MASS
SPECTROPHOTOMETRY
STAR EVOLUTION
STARS
T TAURI STARS
VARIABLE STARS