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Full rotationally phase-resolved visible reflectance spectroscopy of 3200 Phaethon
Planetary and Space Science ( IF 2.4 ) Pub Date : 2020-10-01 , DOI: 10.1016/j.pss.2020.104940
Katsuhito Ohtsuka , Takashi Ito , Daisuke Kinoshita , Shinsuke Abe , Kyosuke Sawai , Kazuhiro Funabashi , Ryo Kato , Seidai Miyasaka , Sunao Hasegawa , Tomoki Nakamura , Wen-Ping Chen

Abstract We present time-series optical spectroscopic observations of 3200 Phaethon during its 2007 return, complemented with R-band photometry. The spectral gradient centered around 0.55 μm varies between − 5.0 % / 0.1 μm and 0.6 % / 0.1 μm, indicating a B- or C-type color. Moreover, rotational modulation of the spectral slope of this asteroid suggests its surface compositional inhomogeneity, particularly the existence of a C-type surface at a certain longitude on this asteroid.

中文翻译:

3200 Phaethon 的全旋转相位分辨可见反射光谱

摘要 我们展示了 3200 Phaethon 在 2007 年回归期间的时间序列光谱观测,并辅以 R 波段光度法。以 0.55 μm 为中心的光谱梯度在 - 5.0 % / 0.1 μm 和 0.6 % / 0.1 μm 之间变化,表示 B 型或 C 型颜色。此外,这颗小行星光谱斜率的旋转调制表明它的表面成分不均匀,特别是在这颗小行星上某个经度处存在 C 型表面。
更新日期:2020-10-01
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