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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