Circumstellar chemistry from microwave and mm-wave spectroscopy

Research output: Contribution to journalArticle

Abstract

Stars in their late stages of evolution often shed matter in the form of a cool wind which is molecular in composition. These winds are a major source of replenishment of the interstellar gas and dust, so they furnish a large part of the raw materials for new generations of stars and planets. The chemistry of the circumstellar envelope depends strongly on the photospheric abundances of the elements, especially C and O. If C/O > 1, a rich organic chemistry is observable in the microwave and mm-wavelength emission lines of the reaction products. This paper reviews the observational evidence for the presence of organic molecules and their formation pathways in circumstellar envelopes, with special emphasis on rotational spectra at microwave and millimeter wavelengths.

Original languageEnglish (US)
Pages (from-to)3-14
Number of pages12
JournalAdvances in Space Research
Volume15
Issue number3
DOIs
StatePublished - 1995

Fingerprint

Stars
envelopes
spectroscopy
Microwaves
Spectroscopy
chemistry
wavelength
replenishment
microwaves
organic chemistry
stars
Wavelength
interstellar gas
rotational spectra
Planets
Reaction products
wavelengths
reaction products
Dust
planets

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering
  • Astronomy and Astrophysics

Cite this

Circumstellar chemistry from microwave and mm-wave spectroscopy. / Bieging, John H.

In: Advances in Space Research, Vol. 15, No. 3, 1995, p. 3-14.

Research output: Contribution to journalArticle

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