Gas-phase CO2 emission toward Cepheus A East: the result of shock activity?

@article{Sonnentrucker2006GasphaseCE,
  title={Gas-phase CO2 emission toward Cepheus A East: the result of shock activity?},
  author={Paule G. Sonnentrucker and Eduardo Gonz'alez-Alfonso and David A Neufeld and Edwin A. Bergin and Gary J. Melnick and William J. Forrest and Judith L. Pipher and Dan Watson},
  journal={The Astrophysical Journal},
  year={2006},
  volume={650}
}
  • Paule G. Sonnentrucker, Eduardo Gonz'alez-Alfonso, +5 authors Dan Watson
  • Published 2006
  • Physics
  • The Astrophysical Journal
  • We report the first detection of gas-phase CO2 emission in the star-forming region Cepheus A East, obtained by spectral line mapping of the ν2 bending mode at 14.98 μm with the Infrared Spectrograph on board the Spitzer Space Telescope. The gaseous CO2 emission covers a region about 35'' × 25'' in extent and results from radiative pumping by 15 μm continuum photons emanating predominantly from the HW2 protostellar region. The gaseous CO2 exhibits a temperature distribution ranging from 50 to… CONTINUE READING