other query modes : |
Identifier query |
Coordinate query |
Criteria query |
Reference query |
Basic query |
Script submission |
TAP |
Output options |
Object types |
Help |
2012MNRAS.419.2396P - Mon. Not. R. Astron. Soc., 419, 2396-2406 (2012/January-3)
Excitation of unidentified infrared bands by H atom impacts.
PAPOULAR R.
Abstract (from CDS):
It is shown quantitatively that H atom impacts are generally more efficient excitation agents than UV absorption because of the overwhelming abundance of H relative to UV photons. Only very close to young bright stars is this no longer true because photon flux then largely exceeds H atom flux. Thus, H atom impacts and far-UV absorption are both necessary to understand the variety of observed UIB spectra.
The model translates into a small number of equations enabling a quantitative comparison of its predictions with available astronomical observations, which have become exquisitely rich and accurate in the last two decades.
Abstract Copyright: 2011 The Author Monthly Notices of the Royal Astronomical Society2011 RAS
Journal keyword(s): astrochemistry - radiation mechanisms: non-thermal - dust, extinction - ISM: lines and bands
Simbad objects: 8
To bookmark this query, right click on this link: simbad:2012MNRAS.419.2396P and select 'bookmark this link' or equivalent in the popup menu