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Three micron spectroscopy of low-mass pre-main-sequence stars
The Astrophysical Journal1990Vol. 359, pp. 192–192
Citations Over TimeTop 14% of 1990 papers
Abstract
Low-resolution spectra were obtained of 16 premain-sequence stars, and ice-band features are detected in young T Tauri stars (TTSs) and in low-mass protostars. The TTSs have an ice band optical depth tau(ice) of 0.1-0.4. The tau(ice) for objects in the Taurus dark cloud decreases progressively from protostars to TTSs. The apparent color temperatures of the continuum spectra are 800-1200 K for protostars and 1100-1500 K for TTSs. The color temperatures of the continuum increase to 1200-2000K after correcting the protostar spectra for foreground extinction. This common temperature range in both young TTSs and protostars suggests that the inner boundary of the circumstellar disk is determined by the sublimation of refractory grains.
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