DETECTION OF INTERGALACTIC IONIZED HELIUM ABSORPTION IN A HIGH-REDSHIFT QUASAR

被引：192

作者：

JAKOBSEN, P

BOKSENBERG, A

DEHARVENG, JM

GREENFIELD, P

JEDRZEJEWSKI, R

PARESCE, F

机构：

[1] ROYAL GREENWICH OBSERV,CAMBRIDGE CB3 0EZ,ENGLAND

[2] CNRS,ASTRON SPATIALE LAB,F-13012 MARSEILLE,FRANCE

[3] SPACE TELESCOPE SCI INST,BALTIMORE,MD 21218

来源：

NATURE | 1994年 / 370卷 / 6484期

关键词：

D O I：

10.1038/370035a0

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：

Observations obtained with the recently refurbished Hubble Space Telescope reveal strong absorption arising from singly ionized helium along the line of sight to a high-redshift quasar. The strength of the absorption suggests that it may arise in a diffuse ionized intergalactic medium. The detection also confirms that substantial amounts of helium existed in the early Universe, as predicted by Big Bang nucleosyntheis theory.

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页码：35 / 39

页数：5

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