SOLAR ABUNDANCES FROM GAMMA-RAY SPECTROSCOPY - COMPARISONS WITH ENERGETIC PARTICLE, PHOTOSPHERIC, AND CORONAL ABUNDANCES

被引：162

作者：

MURPHY, RJ

RAMATY, R

KOZLOVSKY, B

REAMES, DV

机构：

[1] NASA,GODDARD SPACE FLIGHT CTR,UNIV SPACE RES ASSOC,GREENBELT,MD 20771

[2] TEL AVIV UNIV,RAYMOND & BEVERLY SACKLER FAC EXACT SCI,SCH PHYS & ASTRON,IL-69978 TEL AVIV,ISRAEL

[3] NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771

来源：

ASTROPHYSICAL JOURNAL | 1991年 / 371卷 / 02期

关键词：

GAMMA-RAYS; GENERAL; SUN; ABUNDANCES; FLARES; PARTICLE EMISSION;

D O I：

10.1086/169944

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have derived accelerated particle and ambient gas abundances using solar flare gamma-ray spectroscopy. We compare the results with photospheric and coronal abundances, as well as with solar energetic particle abundances. This is the first time that the composition of accelerated particles interacting in an astrophysical source has been compared with the composition of particles escaping from the source. Our analysis shows that the derived composition of the accelerated particles is different from the composition of particles observed in large proton flares; rather, it resembles the composition observed in He-3-rich flares. Our analysis also suggests an ambient gas composition which differs from the composition of both the photosphere and the corona.

引用

页码：793 / 803

页数：11

共 28 条

[1] ABUNDANCES OF THE ELEMENTS - METEORITIC AND SOLAR [J].