MIT Libraries logoDSpace@MIT

MIT
View Item 
  • DSpace@MIT Home
  • MIT Open Access Articles
  • MIT Open Access Articles
  • View Item
  • DSpace@MIT Home
  • MIT Open Access Articles
  • MIT Open Access Articles
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Three Small Planets Transiting the Bright Young Field Star K2-233

Author(s)
David, Trevor J.; Crossfield, Ian Jm; Benneke, Björn; Petigura, Erik A.; Gonzales, Erica J.; Schlieder, Joshua E.; Yu, Liang; Isaacson, Howard T.; Howard, Andrew W.; Ciardi, David R.; Mamajek, Eric E.; Hillenbrand, Lynne A.; Cody, Ann Marie; Riedel, Adric; Schwengeler, Hans Martin; Tanner, Christopher; Ende, Martin; ... Show more Show less
Thumbnail
DownloadDavid_2018_AJ_155_222.pdf (2.190Mb)
Terms of use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Metadata
Show full item record
Abstract
We report the detection of three small transiting planets around the young K3 dwarf K2-233 (2MASS J15215519-2013539) from observations during Campaign 15 of the K2 mission. The star is relatively nearby (d = 69 pc) and bright (V = 10.7 mag, K[subscript s] = 8.4 mag), making the planetary system an attractive target for radial velocity follow-up and atmospheric characterization with the James Webb Space Telescope. The inner two planets are hot super-Earths (R[subscript b] = 1.40 ± 0.06 R[subscript ⊕], R[subscript c] = 1.34 ± 0.08 R[subscript ⊕]), while the outer planet is a warm sub-Neptune (R[subscript d] = 2.6 ± 0.1 ). We estimate the stellar age to be Myr based on rotation, activity, and kinematic indicators. The K2-233 system is particularly interesting given recent evidence for inflated radii in planets around similarly aged stars, a trend potentially related to photo-evaporation, core cooling, or both mechanisms.
Date issued
2018-05-03
URI
https://hdl.handle.net/1721.1/121195
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Astronomical Journal
Publisher
American Astronomical Society
Citation
David, Trevor J., Ian J. M. Crossfield, Björn Benneke, Erik A. Petigura, Erica J. Gonzales, Joshua E. Schlieder, Liang Yu, et al. “Three Small Planets Transiting the Bright Young Field Star K2-233.” The Astronomical Journal 155, 5 (May 2018): 222 © 2018 American Astronomical Society
Version: Final published version
ISSN
1538-3881
0004-6256

Collections
  • MIT Open Access Articles

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

Login

Statistics

OA StatisticsStatistics by CountryStatistics by Department
MIT Libraries
PrivacyPermissionsAccessibilityContact us
MIT
Content created by the MIT Libraries, CC BY-NC unless otherwise noted. Notify us about copyright concerns.