Radio and infrared properties of young stars

Details Radio and infrared properties of young stars Radio and infrared properties of young stars

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987stin...8830579p&link_type=abstract

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Astronomy and Astrophysics

Astronomy

Infrared Radiation, Pre-Main Sequence Stars, Radio Frequencies, Stellar Evolution, Stellar Radiation, Extinction, Infrared Astronomy, Luminosity, Star Formation, Stellar Mass Accretion, Stellar Winds

Scientific paper

Observing young stars, or more appropriately, pre-main-sequence (PMS) stars, in the infrared and at radio frequencies has the advantage over optical observation in that the heavy extinction associated with a star forming region is only a minor problem, so that the whole region can be studied thoroughly. Therefore, it means being able to: (1) search for stars and do statistical studies on the rate of star formation; (2) determine their luminosity, hence, to study luminosity functions and initial mass functions down to low masses; and (3) to study their spectra and, thus, to determine the prevailing conditions at and near the surface of a newly born star and its relations with the surrounding environment. The third point is of principal interest. The report limits itself to a consideration of the observations concerning the processes of outflows from, and accretion onto, PMS stars and the theory necessary to interpret them. Section 2 discusses the radiative processes relevant in stellar outflows. The main observational results are presented in Section 3. A discussion of the statistical properties of stellar winds from PMS stars are given in Section 4.

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