S18B0062abst

S18B0062

Kepler discovered thousands of exoplanets and established that the majority of them inside ∼ 1 au are super Earth-sized planets. However, a lot of long-period planet candidates (P>1yr) have been missed in the KOI catalog. Recently, we have identified many single and double transiting events (STE/DTE) in the Kepler archival data. Surprisingly, the majority of those long-period planet candidates are Neptune-sized and sub-Saturn-sized rather than Jupiter-sized. Those results challenge the theory of planet formation near the snowline. Most of them lack spectroscopic information on the host stars, which is required to reliably estimate the period and radius and to eliminate the false positives (FPs). Here, we propose HDS observations to complete the planet catalog near and beyond the snowline through FP elimination and identification of planet size.

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This document was translated from L^AT_EX by H^EV^EA.