Constraints on the abundances of various molecules in interstellar ice: laboratory studies and astrophysical implications

Details Constraints on the abundances of various molecules in interstellar ice: laboratory studies and astrophysical implications Constraints on the abundances of various molecules in interstellar ice: laboratory studies and astrophysical implications

Mar 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...331..749b&link_type=abstract

Astronomy and Astrophysics, v.331, p.749-759 (1998)

Astronomy and Astrophysics

Astrophysics

53

Methods: Laboratory, Stars: Individual: Ngc 7538:Irs 9, Ism: Molecules, Ism: Abundances, Infrared: Ism: Lines And Bands

Scientific paper

Ethane, acetylene, ethanol, hydrazine and hydrogen peroxide are either predicted by theoretical models to be abundant in the icy mantles on grains in dense clouds, or were found to be produced by comets. We present measurements of the spectra of these species embedded in astrophysically relevant ice matrices. Additionally, we obtained the spectrum of the hydrozonium ion (N_2H_5(+) ) which could be produced by activation less acid-base reactions. The laboratory results are compared to the ISO and ground-based spectra of NGC 7538:IRS 9. Strict upper-limits compared to the solid water could be found for ethane, ethanol and hydrogen peroxide of < 0.4%, < 1.2%, and < 6.1%, respectively. These results give some important information on the relationship between cometary and interstellar ices and on the nature of grain surface reactions.

Affiliated with

Also associated with

No associations

Rating

Constraints on the abundances of various molecules in interstellar ice: laboratory studies and astrophysical implications 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 Constraints on the abundances of various molecules in interstellar ice: laboratory studies and astrophysical implications, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constraints on the abundances of various molecules in interstellar ice: laboratory studies and astrophysical implications will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1655746