The contribution of Oxygen to the ``30", ``26" and ``20" mu m features

Details The contribution of Oxygen to the ``30", ``26" and ``20" mu m features The contribution of Oxygen to the ``30", ``26" and ``20" mu m features

Oct 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26a...362l...9p&link_type=abstract

Astronomy and Astrophysics, v.362, p.L9-L12 (2000)

Astronomy and Astrophysics

Astrophysics

21

Molecular Processes, Radiation Mechanisms: Thermal, Ism: Dust, Extinction, Ism: Planetary Nebulae: General, Infrared: Ism: Lines And Bands

Scientific paper

The IR absorption spectra of several macromolecules of interest for amorphous carbonaceous cosmic dust were simulated by means of a commercially available state-of-the-art chemical code. None of the three unidentified far IR features show up significantly in the absence of oxygen in the structure. By contrast, peripheral OH (hydroxy) gives rise to strong modes in the ``30" band. The ``26" and ``20" bands are brought forth by O-bridges and O-substituted 5-membered carbon rings and enhanced by the OH's. A few similar macromolecules containing various small amounts of oxygen in these three forms and combined in various proportions are enough to qualitatively fit typical dust spectra recently extracted from ISO observations.

Affiliated with

Also associated with

No associations

Rating

The contribution of Oxygen to the ``30", ``26" and ``20" mu m features 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 contribution of Oxygen to the ``30", ``26" and ``20" mu m features, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The contribution of Oxygen to the ``30", ``26" and ``20" mu m features will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1767160