2012ApJ...745L...2M

Query : 2012ApJ...745L...2M

2012ApJ...745L...2M - Astrophys. J., 745, L2 (2012/January-3)

The catalytic role of coronene for molecular hydrogen formation.

MENNELLA V., HORNEKAER L., THROWER J. and ACCOLLA M.

Abstract (from CDS):

We present the results of an experimental study on the interaction of atomic deuterium with coronene films. The effects of D atom irradiation have been analyzed with infrared spectroscopy. The spectral changes provide evidence for deuteration of the outer edge coronene C sites via a D addition reaction. A cross section of 1.1 Å2 is estimated for the deuteration process of coronene. HD and D2 molecules form, through abstraction reactions, on deuterated coronene sites with a cross section of 0.06 Å2. The magnitude of both cross sections is in line with an Eley-Rideal type process. The results show that hydrogenated neutral polycyclic aromatic hydrocarbon molecules act as catalysts for the formation of molecular hydrogen.

Abstract Copyright: ∼

Journal keyword(s): astrochemistry - methods: laboratory

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 * rho Oph ** 16 25 35.11766 -23 26 49.8150 4.30 4.85 4.63 4.27 3.96 B2IV+B2V 670 0

Query : 2012ApJ...745L...2M

Basic data :
* rho Oph -- Double or Multiple Star
Other object types: otypes_help 		* (*,CD,...), ** (CCDM,**,...), X (RX,1RXS), UV ([SC96]), NIR (2MASS)
ICRS coord. (ep=J2000) : 		16 25 35.11766 -23 26 49.8150 (Optical) [ 8.16 7.83 89 ] A 2007A&A...474..653V
FK4 coord. (ep=B1950 eq=1950) : 		16 22 34.95221 -23 20 01.3413 [ 8.16 7.83 89 ]
Gal coord. (ep=J2000) : 		353.68597326 +17.68675229 [ 8.16 7.83 89 ]
Proper motions mas/yr : 		-5.53 -21.74 [0.89 0.93 0] A 2007A&A...474..653V
Radial velocity / Redshift / cz : 		V(km/s) -11.40 [3] / z(~) -0.000038 [0.000010] / cz -11.40 [3.00]
   C 2006AstL...32..759G
Parallaxes (mas): 		9.03 [0.90] A 2007A&A...474..653V
Spectral type: 		B2IV+B2V C 2011AJ....141..165A
Fluxes (13) :
U 4.30 [~] C 2014JAVSO..42..443M
B 4.85 [~] C 2014JAVSO..42..443M
V 4.63 [~] C 2014JAVSO..42..443M
R 4.27 [~] C 2014JAVSO..42..443M
I 3.96 [~] C 2014JAVSO..42..443M
J 3.74 [~] C 2002yCat.2237....0D
H 3.56 [~] C 2002yCat.2237....0D
K 3.51 [~] C 2002yCat.2237....0D
u 5.04 [~] C 2014JAVSO..42..443M
g 4.66 [~] C 2014JAVSO..42..443M
r 4.60 [~] C 2014JAVSO..42..443M
i 4.52 [~] C 2014JAVSO..42..443M
z 4.51 [~] C 2014JAVSO..42..443M
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1
: 2 		: 7730 Display criteria :

Identifiers (20) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

CCDM J16255-2327AB ADS 10049 AB IDS 16196-2313 AB UBV 13904
* rho Oph CD-23 12861 2MASS J16253509-2326486 VDB 106
* 5 Oph CSI-23 12861 23 RX J1625.5-2326 WDS J16256-2327AB
** H 19AB HIC 80473 1RXS J162535.1-232611 [B10] 4178
** H 219AB HIP 80473 TIC 203822408 [SC96] Oph 63

References (670 between 1850 and 2026) (Total 670)
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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Collections of Measurements Description of Measurements

Velocities : 1    Plx : 2    PM : 2    SpT : 1   

   

Observing logs
XMM : 3   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : * rho Oph

Link by name to the catalogue in VizieR :

CCDM J16255-2327AB CD-23 12861 HIC 80473 HIP 80473 2MASS J16253509-2326486
1RXS J162535.1-232611 VDB 106 WDS J16256-2327AB

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