Bibcode
Livingston, J. H.; Dai, Fei; Hirano, Teruyuki; Gandolfi, Davide; Nowak, G.; Endl, Michael; Velasco, S.; Fukui, Akihiko; Narita, Norio; Prieto-Arranz, J.; Barragan, Oscar; Cusano, Felice; Albrecht, Simon; Cabrera, Juan; Cochran, William D.; Csizmadia, Szilard; Deeg, H. J.; Eigmüller, Philipp; Erikson, Anders; Fridlund, Malcolm; Grziwa, Sascha; Guenther, Eike W.; Hatzes, Artie P.; Kawauchi, Kiyoe; Korth, Judith; Nespral, D.; Palle, E.; Pätzold, Martin; Persson, Carina M.; Rauer, Heike; Smith, Alexis M. S.; Tamura, Motohide; Tanaka, Yusuke; Van Eylen, Vincent; Watanabe, Noriharu; Winn, Joshua N.
Bibliographical reference
The Astronomical Journal, Volume 155, Issue 3, article id. 115, 11 pp. (2018).
Advertised on:
3
2018
Citations
49
Refereed citations
44
Description
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 ± 0.0011,
{17.30681}-0.00036+0.00034, and
{25.5715}-0.0040+0.0038 {days}, and radii of 1.05
± 0.16, 3.14 ± 0.36, and
{1.55}-0.21+0.24 {R}\oplus ,
respectively. With an age of 600–800 Myr, these planets are some
of the smallest and youngest transiting planets known. Due to the
relatively bright (J = 9.1) host star, the planets are compelling
targets for future characterization via radial velocity mass
measurements and transmission spectroscopy. As the first known star with
multiple transiting planets in a cluster, the system should be helpful
for testing theories of planet formation and migration.
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Enric
Pallé Bago