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Solid carbon dioxide in regions of low-mass star formation

Authors
  • A, Nummelin
  • Dcb, Whittet
  • E L, Gibb
  • P A, Gerakines
  • Jean Chiar
Type
Published Article
Journal
The Astrophysical Journal
Publisher
American Astronomical Society
Publication Date
Aug 31, 2001
Volume
558
Issue
1
Pages
185–185
Source
SETI Institute
License
Unknown

Abstract

We present high-resolution (R~ 1500-2000) spectra of the 4.27 μm asymmetric stretching feature of solid CO 2 in eight lines of sight observed with the Short Wavelength Spectrometer of the Infrared Space Observatory. Two of the sources are field stars located behind the Taurus molecular cloud; the others are young stellar objects (YSOs) of predominantly low-to-intermediate mass. We find a significant source-to-source variation in the solid CO 2/H 2 O abundance ratio in our sample: two lines of sight, Elias 18 and ...

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