TESS spots a compact system of super-Earths around the naked-eye star HR 858
DownloadPublished version (2.012Mb)
Publisher Policy
Publisher Policy
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.
Terms of use
Metadata
Show full item recordAbstract
Transiting Exoplanet Survey Satellite (TESS) observations have revealed a compact multiplanet system around the sixth-magnitude star HR 858 (TIC 178155732, TOI 396), located 32 pc away. Three planets, each about twice the size of Earth, transit this slightly evolved, late F-type star, which is also a member of a visual binary. Two of the planets may be in mean motion resonance. We analyze the TESS observations, using novel methods to model and remove instrumental systematic errors, and combine these data with follow-up observations taken from a suite of ground-based telescopes to characterize the planetary system. The HR 858 planets are enticing targets for precise radial velocity observations, secondary eclipse spectroscopy, and measurements of the Rossiter-McLaughlin effect. ©2019
Date issued
2019-08Department
Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences; MIT Kavli Institute for Astrophysics and Space ResearchJournal
Astrophysical journal. Letters
Publisher
American Astronomical Society
Citation
Vanderburg, Andrew, et al. "TESS spots a compact system of super-Earths around the naked-eye star HR 858." Astrophysical journal. Letters 881, 1 (August 2019): letter 19 doi 10.3847/2041-8213/AB322D ©2019 Author(s)
Version: Final published version
ISSN
2041-8213
2041-8205