X and UV radiation from accreting magnetic degenerate dwarfs.
X and UV radiation from accreting magnetic degenerate dwarfs.
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来自吸积磁简并矮星的 X 和 UV 辐射。
DOI：
10.1086/183121
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发表时间：
1977
期刊：
影响因子：
--
通讯作者：
A. R. Masters
中科院分区：
文献类型：
--
作者：
D. Lamb;A. R. Masters
我们对热等离子体的高次谐波回旋辐射进行了详细的数值计算，并由此建立了吸积磁简并向下的X射线和紫外光辐射的自洽定量模型。我们发现，这类恒星通常是强紫外线源，在软X射线和硬X射线中只发射出其光度的一小部分。X和UV光谱的定性特征足以相对可信地确定源的质量、磁场强度和光度。我们的结果表明，从AM HER、UMA和3A 0211-227观测到的软和硬X射线发射是这些天体的典型特征。
We have carried out detailed numerical calculations of high-harmonic cyclotron emission from a hot plasma, and from these calculations we have developed at self-consistent, quantitative model of X-ray and UV emission from accreting magnetic degenerate dwards. We find that such stars are typically strong UV sources, and emit only at small fraction of their luminosity in soft and hard X-rays. The qualitative features of the X and UV spectra suffice to determine the mass, magnetic field strength, and luminosity of the source with relative confidence. Our results show that the soft and hard X-ray emission observed from AM Her, AN UMa, and 3A 0211--227 are typical of these objects.