Line-of-Sight Extinction Toward T Tauri Stars

Details Line-of-Sight Extinction Toward T Tauri Stars Line-of-Sight Extinction Toward T Tauri Stars

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...206.0712w&link_type=abstract

American Astronomical Society Meeting 206, #07.12; Bulletin of the American Astronomical Society, Vol. 37, p.439

Astronomy and Astrophysics

Astronomy

Scientific paper

We present medium resolution (RP ˜2500) spectra for several young T-Tauri stars in the near-IR region between 0.8 and 5 μ m acquired with the SpeX spectrometer at NASA's Infrared Telescope Facility. The spectra are rich in H I recombination lines. We report the fluxes of the emission lines in the Paschen and Brackett series and compare the relative line strengths with predicted theoretical values to estimate line-of-sight extinction. We explore the suppression of fluxes for lower n lines in the series due to opacity and the resulting implications upon extinction calculations.
This work was supported by the Research Experience for Undergraduates Program and NSF grant AST 02-05881.

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