Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988aj.....95..534s&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 95, Feb. 1988, p. 534-542. NSF-NASA-supported research.
Astronomy and Astrophysics
Astronomy
64
Auriga Constellation, Statistical Analysis, Stellar Evolution, Stellar Luminosity, Stellar Mass, T Tauri Stars, Accretion Disks, Frequency Distribution, Histograms, Infrared Spectra, Spectral Energy Distribution
Scientific paper
This paper presents a statistical study in which the observed total luminosity is compared quantitatively with an estimate of the stellar luminosity for a sample of 59 low-mass young stellar objects (YSOs) in the Taurus-Auriga complex. In 13 of the analyzed YSOs, luminosity excesses greater than 0.20 are observed together with greater than 0.6 IR excesses, which typically contribute the bulk of the observed excess luminosity and are characterized by spectral energy distributions which are flat or rise toward long wavelengths. The analysis suggests that YSOs showing the largest luminosity excesses typically power optical jets and/or molecular outflows or have strong winds, as evidenced by the presence of O I emission, indicating a possible correlation between accretion and mass-outflow properties.
Hartmann Lee
Kenyon Scott. J.
Strom Karen M.
Strom Stephen E.
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