Winds from low-mass stars - Self-regulated star formation in Taurus, Ophiuchus, NGC 2264 and Orion

Astronomy and Astrophysics – Astrophysics

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Orion Nebula, Star Formation, Stellar Winds, Density Distribution, Pre-Main Sequence Stars, Stellar Mass, Stellar Models, T Tauri Stars, Taurus Constellation

Scientific paper

Using the self-regulated star formation model proposed by Franco and Cox, (1983) the effects of winds from low-mass stars are analyzed. Two types of winds are considered; hypothetical protostellar winds and the observed T Tauri winds. It is found that the radial momentum input, in both cases, could regulate the evolution of the star-forming regions. The birthrates due to protostellar rotationally driven winds and T Tauri winds are very similar, and are proportional to the square root of the local density in the star-forming region. The predicted rates for Taurus-Auriga, Rho Ophiuchi NGC 2264, and the Trapezium region in Orion are in agreement with observational results.

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