2008ApJ...679..531R

Query : 2008ApJ...679..531R

2008ApJ...679..531R - Astrophys. J., 679, 531-536 (2008/May-3)

Catalyzed routes to molecular hydrogen formation and hydrogen addition reactions on neutral polycyclic aromatic hydrocarbons under interstellar conditions.

RAULS E. and HORNEKAER L.

Abstract (from CDS):

We present first-principle calculations which reveal the existence of low-barrier routes to molecular hydrogen formation on the polycyclic aromatic hydrocarbon (PAH) molecule coronene via Eley-Rideal abstraction reactions and show that such processes could indeed be active under interstellar conditions. The calculations indicate that in regions of low UV flux, coronene, and larger PAHs might be found in superhydrogenated states. Furthermore, the calculations imply that not only edge carbon atoms but also carbon atoms on the inner rings of the coronene molecule can be hydrogenated. Such superhydrogenated PAHs are expected to exhibit significantly changed absorption and emission spectra.

Abstract Copyright: ∼

Journal keyword(s): ISM: Lines and Bands - ISM: Molecules - Molecular Processes

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME Orion Bright Bar reg 05 35 22.30 -05 24 33.0           ~ 1004 0

Query : 2008ApJ...679..531R

Basic data :
NAME Orion Bright Bar -- Region defined in the Sky
Other object types: otypes_help 		reg ()
ICRS coord. (ep=J2000) : 		05 35 22.30 -05 24 33.0 (Optical) [ ] D 2011MNRAS.417..420M
FK4 coord. (ep=B1950 eq=1950) : 		05 32 54.87 -05 26 25.9 [ ]
Gal coord. (ep=J2000) : 		209.04076 -19.37127 [ ]
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Identifiers (4) :
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NAME Orion Bright Bar NAME Ori Bar NAME Ori Bright Bar NAME Orion Bar

References (1004 between 1850 and 2026) (Total 1004)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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