THE ULTRAVIOLET-SPECTRUM OF ANNEALED HYDROGENATED AMORPHOUS-CARBON GRAINS

被引：20

作者：

BLANCO, A

BUSSOLETTI, E

COLANGELI, L

FONTI, S

MENNELLA, V

STEPHENS, JR

机构：

[1] OSSERV ASTRON CAPODIMONTE,I-80131 NAPLES,ITALY

[2] UNIV NAPOLI,IST NAVACE,I-80133 NAPLES,ITALY

[3] UNIV CASSINO,DIPARTIMENTO INGN,I-03043 CASSINO,ITALY

[4] LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545

来源：

ASTROPHYSICAL JOURNAL | 1993年 / 406卷 / 02期

关键词：

DUST; EXTINCTION; LINE; IDENTIFICATION; MOLECULAR PROCESSES; ULTRAVIOLET; INTERSTELLAR;

D O I：

10.1086/172485

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In a previous paper (Blanco et al. 1991) we experimentally showed how the optical properties of amorphous carbon particles are affected by the presence of hydrogen during their condensation. In the present work we report UV spectra of annealed grains produced in hydrogen-rich atmosphere. The laboratory results support the idea that the interstellar 2175 angstrom feature is due to the extinction produced by amorphous carbon grains dehydrogenated via UV irradiation.

引用

页码：739 / 741

页数：3

共 27 条

[1] HYDROGENATED AMORPHOUS-CARBON GRAINS AND THE 2175-A INTERSTELLAR HUMP [J].