Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.243..593c&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 243, April 15, 1990, p. 593-601.
Astronomy and Astrophysics
Astronomy
12
Interstellar Extinction, Interstellar Matter, Metal Ions, Molecular Clouds, Visible Spectrum, Calcium, Cyanides, High Resolution, Hydrocarbons, Sodium
Scientific paper
High-resolution observations of interstellar Na I, Ca II, CH, CH(+) and CN towards the moderately reddened star HD 26571 are presented. Two velocity components are identified in the atomic lines at heliocentric velocities of about + 12 and + 20 km/s. Lines due to CH and CN were found to associated with the latter component, which was found to have a larger N(Na I)/N(Ca II) ratio. CH(+) was not detected. A simple chemical model suggests that densities in excess of 1000 particles/cu cm may be required to account for the CN column density. The similarity of the velocity of the molecular lines with those of the Taurus dark clouds, which lie close to the line-of-sight, suggests that this diffuse cloud is associated with the Taurus molecular cloud complex.
No associations
LandOfFree
The optical interstellar spectrum of HD 26571 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The optical interstellar spectrum of HD 26571, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The optical interstellar spectrum of HD 26571 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1382352