Abstract
view Abstract Citations (32) References (65) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Interstellar Molecular Lines in the Direction of the Young Star TY CrA Cardelli, Jason A. ; Wallerstein, George Abstract Echelle data for the CN, CH, and CH(+) lines along the line of sight to TY CrA, a young star in a very young star forming region, are discussed. The molecular abundances of CN and CH are low in comparison to those of HD 29647. The results suggest that CH(+) is formed in a weak shock that may be associated with the local cloud collapse. The large abundances of CH(+) and CH imply a shock with a velocity of about 10 km/s (seen at an angle from the normal to the shock front of about 70 deg) and a radiation-field-enhancement factor of about 3-5. Publication: The Astronomical Journal Pub Date: April 1989 DOI: 10.1086/115052 Bibcode: 1989AJ.....97.1099C Keywords: Absorption Spectra; Early Stars; Interstellar Matter; Line Spectra; Molecular Spectra; Echelle Gratings; H Ii Regions; Interstellar Extinction; Photochemical Reactions; Astrophysics; INTERSTELLAR: MOLECULES full text sources ADS | data products SIMBAD (12)
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