Abundance And Chemistry Of Interstellar Hoco+
Copyright policy )Abundance And Chemistry Of Interstellar Hoco+
Column densities of 10 to the 15th/sq cm toward the Galactic center and not more than 10 to the 12th/sq cm for cold dark clouds are derived from observations using an LVG model, and the chemical implications are discussed. The HOCO(+) 4(04)-3(03) line toward Sgr A is mapped. The fractional abundance of HOCO(+) in the Galactic center region was found to be three orders of magnitude larger than predicted by quiescent ion-molecule chemistry and an order of magnitude larger than predicted by an MHD shock model. It is suggested that the possibly high CO2 abundance, and consequently the observed HOCO(+) abundance in the Galactic center, may result from UV photolysis of grain mantles.
The published version is located at http://adsabs.harvard.edu/full/1991A%26A...244..470M
- University of Massachusetts Amherst United States
- University of Massachusetts System United States
Astrophysics and Astronomy, INTERSTELLAR, Extraterrestrial Environment, CENTER, Astronomy, Astronomical Phenomena, Temperature, CLOUDS, Carbon Dioxide, GALAXY, MOLECULES, Models, Chemical, Interstellar Chemistry, ABUNDANCE, Solar System, Protons
Astrophysics and Astronomy, INTERSTELLAR, Extraterrestrial Environment, CENTER, Astronomy, Astronomical Phenomena, Temperature, CLOUDS, Carbon Dioxide, GALAXY, MOLECULES, Models, Chemical, Interstellar Chemistry, ABUNDANCE, Solar System, Protons
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