SOFT X-RAY BACKGROUND FLUX

被引:102
作者
BUNNER, AN
COLEMAN, PC
KRAUSHAAR, WL
MCCAMMON, D
PALMIERI, TM
SHILEPSKY, A
ULMER, M
机构
[1] Department of Physics, University of Wisconsin, Madison
关键词
D O I
10.1038/2231222a0
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
Measurements of the soft X-ray background flux show good qualitative correlation with 21 cm measurements of columnar hydrogen density but too little apparent absorption. A portion of the flux may originate in unresolved population II objects or may be extragalactic. © 1969 Nature Publishing Group.
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页码:1222 / +
页数:1
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