DIRECT EVIDENCE FOR AN EVOLVING DUST CLOUD FROM THE EXOPLANET KIC 12557548 B
DIRECT EVIDENCE FOR AN EVOLVING DUST CLOUD FROM THE EXOPLANET KIC 12557548 B
复制标题
来自系外行星 KIC 12557548 B 的尘埃云演化的直接证据
DOI:
10.1088/2041-8205/800/2/l21
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
Bochinski J
中科院分区:
文献类型:
--
作者:
Bochinski J
We present simultaneous multi-color optical photometry using of the transiting exoplanet KIC 12557548 b (also known as KIC 1255 b) ULTRACAM. This reveals, for the first time, the color dependence of the transit depth. Our g'and z'transits are similar in shape to the average Kepler short-cadence profile and constitute the highest-quality extant coverage of individual transits. Our Night 1 transit depths are 0.85±0.04% in z'; 1.00±0.03% in g'; and 1.1±0.3% in u'. We employ a residual-permutation method to assess the impact of correlated noise on the depth difference between the z'and g'bands and calculate the significance of the color dependence at
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