XTE J1118 +480静止期多普勒和调制断层成像
Doppler and modulation tomography of XTE J1118+480 in quiescence
摘要：
我们提出的X射线新星XTE J1118+480的多普勒和调制层析成像的静止期间使用10米凯克II望远镜获得的数据。在H-Alpha、H-Beta、He I Lambda-5876和Ca II Lambda-8662中可以看到气流撞击吸积盘的热点，从而验证了系统内持续的质量传递的存在。在H-α和Ca II Lambda-8662中可以清楚地看到圆盘。我们在Na I Lambda-Lambda-5890、5896、8183、8195和Ca II Lambda-8662的窄吸收线中拍摄了质量施主星的图像，这意味着它来自次级本身，而不是星际介质。我们还检测到类似的双峰的H-α的质心的偏差，发现由Escherita等人。2002年提出光盘偏心。
英文摘要：
We present Doppler and modulation tomography of the X-ray nova XTE J1118+480 with data obtained during quiescence using the 10-m Keck II telescope. The hot spot where the gas stream hits the accretion disc is seen in H-Alpha, H-Beta, He I Lambda-5876, and Ca II Lambda-8662, thus verifying the presence of continued mass transfer within the system. The disc is clearly seen in H-Alpha and Ca II Lambda-8662. We image the mass-donor star in narrow absorption lines of Na I Lambda-Lambda-5890, 5896, 8183, 8195 and Ca II Lambda-8662, implying an origin from the secondary itself rather than the interstellar medium. We also detect deviations in the centroid of the double peak of H-Alpha akin to those found by Zurita et al. 2002 suggesting disc eccentricity.
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