ON THE VALUE OF GEMS (GLASS WITH EMBEDDED METAL AND SULFIDES)

被引：56

作者：

MARTIN, PG

机构：

[1] Can. Inst. for Theor. Astrophysics, University of Toronto, Toronto

来源：

ASTROPHYSICAL JOURNAL | 1995年 / 445卷 / 01期

关键词：

COSMIC RAYS; DUST; EXTINCTION; ISM; ABUNDANCES; METEORS; METEOROIDS; METHODS; LABORATORY; POLARIZATION;

D O I：

10.1086/187890

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Bradley (1994) has suggested that grains known as GEMS (glass with embedded metal and sulphides) found in interplanetary dust particles are interstellar silicate grains. Understanding GEMS would then hold promise of fresh insight into diverse problems concerning interstellar grains, such as their origin and processing in the interstellar medium, differential depletion of the elements, grain alignment, the effective dielectric function of dirty silicates, and the infrared spectra of amorphous silicates. On the other hand, astronomical constraints might ultimately rule out this hypothesis.

引用

页码：L63 / L66

页数：4

共 37 条

[1] INTERSTELLAR GRAINS IN PRIMITIVE METEORITES - DIAMOND, SILICON-CARBIDE, AND GRAPHITE [J].