Detection of water vapor in T Tauri stars

Details Detection of water vapor in T Tauri stars Detection of water vapor in T Tauri stars

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apjs...89..299s&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 89, no. 2, p. 299-319

Astronomy and Astrophysics

Astronomy

11

Accretion Disks, Infrared Astronomy, Spectrum Analysis, Stellar Spectrophotometry, T Tauri Stars, Water Vapor, Spectral Energy Distribution, Stellar Envelopes, Stellar Evolution

Scientific paper

We have carried out near-infrared spectrophotometry for 52 T Tauri stars in the Taurus-Auriga region in the wavelength range from 0.9 to 2.5 micrometers. Most of the observed sources show spectral energy distributions flatter than Planck curves. In more than half of our sample, wide and shallow dips due to water vapor are superposed at 1.4 and 1.9 micrometers on the spectra. After decomposition of the spectra into central star and disk components, the water vapor bands still remain in the disk component. We conclude that water vapor is located in the disk component at least 17 T Tauri stars (33%) of the sample. The origin of the water vapor is discussed.

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