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K2-141 b: A 5-M super-Earth transiting a K7 V star every 6.7 hours
O. Barragán, D. Gandolfi, F. Dai +32
We report on the discovery of K2-141 b (EPIC 246393474 b), an ultra-short-period super-Earth on a 6.7-hour orbit transiting an active K7 V star based on data from K2 campaign 12. W…
Three Small Super-Earths Transiting the nearby star GJ 9827
Prajwal Niraula, Seth Redfield, Fei Dai +25
We report on the discovery of three transiting planets around GJ~9827. The planets have radii of 1.75, 1.36, and 2.10~…
Three Small Planets Transiting a Hyades Star
John H. Livingston, Fei Dai, Teruyuki Hirano +33
We present the discovery of three small planets transiting K2-136 (LP 358 348, EPIC 247589423), a late K dwarf in the Hyades. The planets have orbital periods of $7.9757 \pm 0.0011…
Exoplanets around Low-mass Stars Unveiled by K2
Teruyuki Hirano, Fei Dai, Davide Gandolfi +38
We present the detection and follow-up observations of planetary candidates around low-mass stars observed by the K2 mission. Based on light-curve analysis, adaptive-optics imaging…
The discovery and mass measurement of a new ultra-short-period planet: EPIC~228732031b
Fei Dai, Joshua N. Winn, Davide Gandolfi +51
We report the discovery of a new ultra-short-period planet and summarize the properties of all such planets for which the mass and radius have been measured. The new planet, EPIC~2…
Red-edge position of habitable exoplanets around M-dwarfs
Kenji Takizawa, Jun Minagawa, Motohide Tamura +2
One of the possible signs of life on distant habitable exoplanets is the red-edge, which is a rise in the reflectivity of planets between visible and near-infrared (NIR) wavelength…