Evidence for Diacetylene Cation as the Carrier of a Diffuse Interstellar Band

Details Evidence for Diacetylene Cation as the Carrier of a Diffuse Interstellar Band Evidence for Diacetylene Cation as the Carrier of a Diffuse Interstellar Band

May 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010apj...714l..64k&link_type=abstract

The Astrophysical Journal Letters, Volume 714, Issue 1, pp. L64-L67 (2010).

Astronomy and Astrophysics

Astronomy

10

Ism: Molecules

Scientific paper

High-quality spectra acquired at three different observatories point to the presence of a new diffuse interstellar band (DIB) at 5069 Å. The spectral profile of this DIB matches published laboratory measurements of the diacetylene cation A 2Π u -X 2Π g (0-0) low-temperature gas-phase optical absorption. HC4H+ is approximately 60-80 times less abundant than CH along the analyzed lines of sight. Only an upper limit could presently be inferred from the search for an analogous band of the triacetylene cation HC6H+, expected at 6001.1 Å, which implies the HC6H+ to HC4H+ ratio of less than ~1/3.
Based on observations collected at the European organization for Astronomical Research in the Southern Hemisphere, Chile, under programme ID 082.C-0566(A).

Affiliated with

Also associated with

No associations

Rating

Evidence for Diacetylene Cation as the Carrier of a Diffuse Interstellar Band 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 Evidence for Diacetylene Cation as the Carrier of a Diffuse Interstellar Band, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evidence for Diacetylene Cation as the Carrier of a Diffuse Interstellar Band will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1892660