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来自Scorpius X-1的X射线被小的跨海王星天体遮蔽
Hsiang-Kuang Chang1, Sun-Kun King, Jau-Shian Liang
1Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan. hkchang@phys.nthu.edu.tw
Nature
|August 11, 2006
概括
天文学家使用X射线隐蔽事件检测到小型跨海王星物体 (TNOs). 这一发现为我们太阳系中较小的TNOs的丰富性提供了洞察力.
科学领域:
- 天文学和天体物理学
- 太阳系科学 太阳系科学
背景情况:
- 超海王星天体 (TNOs) 是理解太阳系形成的关键.
- 对TNO的直接观测仅限于大于几十公里的物体.
- 较小的TNOs预计会更丰富,但已经逃避检测.
研究的目的:
- 为了检测较小的跨海王星物体 (TNOs).
- 为了调查亚千米大小的TNOs的丰富性.
- 利用新的探测方法来探测太阳系中小型天体.
主要方法:
- 在Scorpius X-1的X射线光曲线中分析了毫秒时间尺度的隐蔽事件.
- 检测短暂的变暗事件,表明物体过境.
主要成果:
- 发现超海王星物体 (TNOs) 引起的隐蔽事件.
- 估计检测到的TNOs的大小小小于或等于100米.
- 这些小型TNO的丰富性与从更大的TNO种群中推断的结果一致.
结论:
- 该研究成功地通过X射线隐蔽检测到小型超海王星物体 (TNOs).
- 这种方法为研究太阳系中小型天体的数量开辟了新的途径.
- 这些发现支持太阳系形成和演变的模型.
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