Discovery of x-ray and extreme ultraviolet emission from comet C/Hyakutake 1996 B2

被引：423

作者：

Lisse, CM

Dennerl, K

Englhauser, J

Harden, M

Marshall, FE

Mumma, MJ

Petre, R

Pye, JP

Ricketts, MJ

Schmitt, J

Trumper, J

West, RG

机构：

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

[2] MAX PLANCK INST EXTRATERR PHYS,D-85740 GARCHING,GERMANY

[3] RUTHERFORD APPLETON LAB,SPACE & ASTROPHYS DIV,DIDCOT OX11 0QX,OXON,ENGLAND

[4] UNIV LEICESTER,DEPT PHYS & ASTRON,LEICESTER LE1 7RH,LEICS,ENGLAND

来源：

SCIENCE | 1996年 / 274卷 / 5285期

关键词：

D O I：

10.1126/science.274.5285.205

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

`During its close approach to Earth, comet C/Hyakutake 1996 B2 was observed at extreme ultraviolet and x-ray wavelengths with the Rontgen X-ray Satellite and Rossi X-ray Timing Explorer. The emission morphology was symmetric with respect to a vector from the comet's nucleus toward the sun, but not symmetric around the direction of motion of the comet with respect to interplanetary dust. A slowly varying emission and a large impulsive event that varied on time scales of 1 to 2 hours were observed. An interaction between the comet and the solar wind/solar magnetic field seems to be the most likely mechanism for the observed emission.

引用

页码：205 / 209

页数：5

共 26 条

[1] ION COMPOSITION AND DYNAMICS AT COMET HALLEY [J].