CONTRIBUTION OF METAL-BONDED POLYCYCLIC AROMATIC-HYDROCARBONS TO THE INTERSTELLAR DEPLETION

被引：0
作者：
KLOTZ, A
MARTY, P
BOISSEL, P
SERRA, G
CHAUDRET, B
DAUDEY, JP
机构：
[1] UNIV TOULOUSE 3, CNRS, UPR 8241, CHIM COORDINAT LAB, F-31400 TOULOUSE, FRANCE
[2] INST NATL POLYTECH TOULOUSE, F-31400 TOULOUSE, FRANCE
[3] UNIV TOULOUSE 3, IRSAMC, PHYS QUANT LAB, CNRS, URA 505, F-31400 TOULOUSE, FRANCE
[4] UNIV PARIS 11, PHOTOPHYS MOLEC LAB, ORSAY, FRANCE
来源：
ASTRONOMY & ASTROPHYSICS | 1995年 / 304卷 / 02期
关键词：
INTERSTELLAR MEDIUM; ABUNDANCES; (DEPLETION); MOLECULES (POLYCYCLIC AROMATIC HYDROCARBON); PHYSICAL DATA AND PROCESSES; MOLECULAR DATA (ORGANOMETALLIC BONDING ENERGIES);
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A satisfactory correlation is described between the bonding energy of a given metal coordinated to a PAH and its observed interstellar depletion. As a consequence, a modelling was elaborated based on the observed depletion of metals and on the theory of thermo-photo-dissociation of organometallic molecules. In this modelling, the abundance of organometallic species is calculated to explain about 5 to 10% of the depletion in the diffuse interstellar medium. Moreover, a constraint on the size distribution of PAHs is presented which is close to the standard distribution deduced by Desert et al. (1990) from a modelling of infrared radiations emitted by the interstellar matter.
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页码：520 / 530
页数：11
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