GJ 367b: A dense, ultrashort-period sub-Earth planet transiting a nearby red dwarf star
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F21%3A00552240" target="_blank" >RIV/67985815:_____/21:00552240 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1126/science.aay3253" target="_blank" >https://doi.org/10.1126/science.aay3253</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1126/science.aay3253" target="_blank" >10.1126/science.aay3253</a>
Alternative languages
Result language
angličtina
Original language name
GJ 367b: A dense, ultrashort-period sub-Earth planet transiting a nearby red dwarf star
Original language description
Ultrashort-period (USP) exoplanets have orbital periods shorter than 1 day. Precise masses and radii of USP exoplanets could provide constraints on their unknown formation and evolution processes. We report the detection and characterization of the USP planet GJ 367b using high-precision photometry and radial velocity observations. GJ 367b orbits a bright (V-band magnitude of 10.2), nearby, and red (M-type) dwarf star every 7.7 hours. GJ 367b has a radius of 0.718 +/- 0.054 Earth-radii and a mass of 0.546 +/- 0.078 Earth-masses, making it a sub-Earth planet. The corresponding bulk density is 8.106 +/- 2.165 grams per cubic centimeter-close to that of iron. An interior structure model predicts that the planet has an iron core radius fraction of 86 +/- 5%, similar to that of Mercury's interior.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
<a href="/en/project/LTT20015" target="_blank" >LTT20015: PLATOSpec ground based support of space missions PLATO and TESS - new Czech spectrograph in collaboration with European Southern Observatory</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Science
ISSN
0036-8075
e-ISSN
1095-9203
Volume of the periodical
374
Issue of the periodical within the volume
6572
Country of publishing house
US - UNITED STATES
Number of pages
5
Pages from-to
1271-1275
UT code for WoS article
000728578700061
EID of the result in the Scopus database
2-s2.0-85120699396