天鹰座 X-1能谱和千赫兹准周期振荡频率的相关

来源 :天体物理学报 | 被引量 : 0次 | 上传用户:lanyinghit
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
通过分析1997年2月27日和3月1日对天鹰座X-1的两次空间数据观测.发现千赫兹QPO频率同X射线能谱有一定相关,其行为类似于另一个X射线暂现源4U 1608-52,讨论了分析结果对了解吸积及QPO产生过程的意义.
其他文献
A new cytotoxic saponin(1), Julibrosides J27, was isolated from the stem barks of Alibizia.julibrissin by chromatography, and the structure was elucidated as 3-
UHF-SCF-AM1 MO calculations were performed for two kinds of pyrolysis reactions of seven nitro derivatives of methylbenzene(homolysis reactions by the rupture o
A simple interface element for analyzing contact friction problems is developed. Taking nodal displacements and contact stresses as unknowns, this element can s
Symbolic bisimulation avoids the infinite branching problem caused by instantiating input names with all names in the standard definition of bisimulation in π-
This paper defines a class of singular integral operators Iwj on L2wj space,where wights wj(j=1-4) are four kinds of Chebyshev weights.The authors prove that Iw
By the interpolating inequality and a priori estimates in the weighted space,the existence of the global solutions for the Ginzburg-Landau equation coupled with
The title compound, 1-(4-Chlorophenyl)-3-(4-Nitrophenyl)-1-Tri-azene, crystallized in the orthorhombic system, space group Pbca, with a= 13. 793(2), b=10. 843(2
叶剑英的一生中,主要从事军事工作和党政领导工作,素以革命家、政治家、军事家为人们所熟悉,然而,他在教育上也颇有建树,有着丰富的教育实践和宝贵的教育思想。在大革命时期,
A facile, stereoselective synthesis of S-vinyl thioesters from easily available starting compounds and reagents is showed.