白羊座mCP星56的紫外光变率
Ultraviolet variability of the mCP star 56 Arietis
摘要：
研究了mCP星56 Ari在1150 ~ 1980 nm远紫外波段的分光光度变化。本研究基于在旋转周期不同阶段获得的存档{ \it IUE}数据。56 Ari的亮度在整个旋转周期内在所研究的波长上不是恒定的。单色光曲线随波长连续改变其形状。比较了三个相位的能量分布，发现在$λ>$ 1608 nm处，光变曲线在0.25相位处的第一个极小值被最大值所取代，而在$λ$ 1938 nm和$λ$ 1980 nm之间的光谱区域，光变曲线在0.65相位处的第二个极小值消失了。在远UV中的可变宽特征与56 Ari的表面上的硅的非均匀分布相关联，显著地影响UV中的光变化。
英文摘要：
The spectrophotometric variability of the mCP star 56 Ari in the far-UV spectral region from 1150 Å to 1980 Å is investigated. This study is based on the archival {\it IUE} data obtained at different phases of the rotational cycle. The brightness of 56 Ari is not constant in the investigated wavelengths over the whole rotational period. The monochromatic light curves continuously change their shape with wavelength. The comparison of energy distributions at three phases show that the first minimum of light curves at phase 0.25 is replaced by the maximum for $λ>$1608Å, but the second minimum of light curves at phase 0.65 absent in the spectral region between $λ$1938Å and $λ$1980Å. The variable broad features in the far-UV connected with a non-uniform distribution of silicon over the surface of 56 Ari influence substantially the light variations in the UV.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
