Abstract
view Abstract Citations (95) References (60) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Magnetohydrodynamic Shocks in Diffuse Clouds. I. Chemical Processes Draine, B. T. ; Katz, N. Abstract The chemistry of carbon- and oxygen-bearing species in MHD shock waves in diffuse interstellar clouds is examined, and the heating and cooling mechanisms in the shocked gas are discussed. Rate coefficients for endothermic and exothermic ion-neutral reactions are computed for conditions where the mean velocities of the ions and neutrals differ, resulting in a non-Maxwellian distribution of relative velocities, and energy-dependent cross sections are adopted for the principal reactions. Confirmation of the important effect on the ion abundance resulting from the endothermic reaction of C(+) with H2, followed by fast dissociative recombination, is obtained. Results for an illustrative model shock demonstrate that significant quantities of CH, OH, CH(+), CH2(+), CH3(+), and HCO(+) can be produced in MHD shocks in diffuse clouds, and that MHD shocks may play an important role in determining the overall abundance of CH(+). Publication: The Astrophysical Journal Pub Date: July 1986 DOI: 10.1086/164375 Bibcode: 1986ApJ...306..655D Keywords: Interstellar Chemistry; Magnetohydrodynamics; Molecular Clouds; Shock Waves; Abundance; Cooling; Cosmic Rays; Dissociation; Ionic Reactions; Photochemical Reactions; Reaction Kinetics; Astrophysics; HYDROMAGNETICS; INTERSTELLAR: MOLECULES; MOLECULAR PROCESSES; SHOCK WAVES full text sources ADS | Related Materials (2) Part 2: 1986ApJ...310..392D Part 3: 1986ApJ...310..408D
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
