Detection of H^+_3 in the Diffuse Interstellar Medium: The Galactic Center and Cygnus OB2 Number 12

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

62

Galaxy: Center, Infrared: Ism: Lines And Bands, Ism: Clouds, Ism:Molecules, Molecular Processes, Stars: Individual: Constellation Name: Cygnus Ob2 No. 12

Scientific paper

Absorption lines of H^+_3 have been detected in the spectra of two infrared sources in the Galactic center and also toward the heavily reddened star Cygnus OB2 No. 12, whose line of sight is believed to include only diffuse interstellar gas. The absorptions toward the Galactic center sources (IRS 3 and GCS 3-2) probably are due to H^+_3 both in diffuse gas and in molecular clouds. The ratios of H^+_3 line equivalent width to extinction toward these three sources are much greater than those toward dense clouds where H^+_3 has been detected previously. Analysis of the spectra coupled with a simple model for the abundance of H^+_3 in the diffuse interstellar medium implies that the observed H^+_3 is present at low densities along long path lengths. These are the first detections of H^+_3 in the diffuse interstellar medium.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Detection of H^+_3 in the Diffuse Interstellar Medium: The Galactic Center and Cygnus OB2 Number 12 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 Detection of H^+_3 in the Diffuse Interstellar Medium: The Galactic Center and Cygnus OB2 Number 12, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection of H^+_3 in the Diffuse Interstellar Medium: The Galactic Center and Cygnus OB2 Number 12 will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1189873

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.