Velocity structure in optical CH(+) lines toward HD 190603 and implications for the formation of CH(+)

Details Velocity structure in optical CH(+) lines toward HD 190603 and implications for the formation of CH(+) Velocity structure in optical CH(+) lines toward HD 190603 and implications for the formation of CH(+)

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...391..152a&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 391, no. 1, May 20, 1992, p. 152-157.

Other

9

B Stars, Hydrocarbons, Interstellar Chemistry, Line Spectra, Stellar Spectra, Supergiant Stars, Absorption Spectra, Abundance, Reflection Nebulae, Shock Waves, Visible Spectrum

Scientific paper

Observations of CH(+) and other species accessible in optical wavelengths in the line of sight to HD 190603, a B 1.5 Iae supergiant are reported. In this line of sight a shift in radial velocity between the CH(+) line and other interstellar absorption lines such as CH and Ca I is observed. The most likely explanation for this effect is the shock formation of CH(+). Likely preshock and postshock conditions which are consistent with the observations are also estimated.

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