Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Three Small Planets Transiting a Hyades Star

Livingston, John H. ; Dai, Fei ; Hirano, Teruyuki ; Gandolfi, Davide ; Nowak, Grzegorz ; Endl, Michael ; Velasco, Sergio ; Fukui, Akihiko ; Narita, Norio and Prieto-Arranz, Jorge , et al. (2018) In Astronomical Journal 155(3).
Abstract

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⊕, 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... (More)

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⊕, 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.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; ; ; ; ; ; and , et al. (More)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; and (Less)
publishing date
type
Contribution to journal
publication status
published
keywords
planetary systems, planets and satellites: detection, stars: individual (LP 358-348), techniques: photometric, techniques: spectroscopic
in
Astronomical Journal
volume
155
issue
3
article number
115
publisher
IOP Publishing
external identifiers
  • scopus:85043498994
ISSN
0004-6256
DOI
10.3847/1538-3881/aaa841
language
English
LU publication?
no
additional info
Publisher Copyright: © 2018. The American Astronomical Society. All rights reserved.
id
db7b0c71-4e6d-4196-b6b1-9d276de9cd16
date added to LUP
2023-02-02 12:25:01
date last changed
2023-02-20 14:32:32
@article{db7b0c71-4e6d-4196-b6b1-9d276de9cd16,
  abstract     = {{<p>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<sub>-0.00036</sub><sup>+0.00034</sup>, and 25.5715<sub>-0.0040</sub><sup>+0.0038</sup> days, and radii of 1.05 ± 0.16, 3.14 ± 0.36, and 1.55<sub>-0.21</sub><sup>+0.24</sup> R<sub>⊕</sub>, 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.</p>}},
  author       = {{Livingston, John H. and Dai, Fei and Hirano, Teruyuki and Gandolfi, Davide and Nowak, Grzegorz and Endl, Michael and Velasco, Sergio and Fukui, Akihiko and Narita, Norio and Prieto-Arranz, Jorge and Barragan, Oscar and Cusano, Felice and Albrecht, Simon and Cabrera, Juan and Cochran, William D. and Csizmadia, Szilard and Deeg, Hans J. and Eigmüller, Philipp and Erikson, Anders and Fridlund, Malcolm and Grziwa, Sascha and Guenther, Eike W. and Hatzes, Artie P. and Kawauchi, Kiyoe and Korth, Judith and Nespral, David and Palle, Enric and Pätzold, Martin and Persson, Carina M. and Rauer, Heike and Smith, Alexis M.S. and Tamura, Motohide and Tanaka, Yusuke and Van Eylen, Vincent and Watanabe, Noriharu and Winn, Joshua N.}},
  issn         = {{0004-6256}},
  keywords     = {{planetary systems; planets and satellites: detection; stars: individual (LP 358-348); techniques: photometric; techniques: spectroscopic}},
  language     = {{eng}},
  number       = {{3}},
  publisher    = {{IOP Publishing}},
  series       = {{Astronomical Journal}},
  title        = {{Three Small Planets Transiting a Hyades Star}},
  url          = {{http://dx.doi.org/10.3847/1538-3881/aaa841}},
  doi          = {{10.3847/1538-3881/aaa841}},
  volume       = {{155}},
  year         = {{2018}},
}