A compact multiplanet system of three transiting giant planets around TIC 118798035

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F25%3A00643681" target="_blank" >RIV/67985815:_____/25:00643681 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14310/25:00143434

Result on the web

<a href="https://hdl.handle.net/11104/0373780" target="_blank" >https://hdl.handle.net/11104/0373780</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3847/2041-8213/ae2603" target="_blank" >10.3847/2041-8213/ae2603</a>

Result language

angličtina

Original language name

A compact multiplanet system of three transiting giant planets around TIC 118798035

Original language description

We report the discovery and characterization of three transiting giant planets in the TIC 118798035 system. The three planets were identified as transiting candidates from data of the TESS mission and confirmed with ground-based photometric transit observations along with radial velocity variations obtained with FEROS, HARPS, and ESPRESSO. The three planets present transit timing variations (TTVs). We performed an N-body orbital fitting to the TTVs and radial velocities, finding that TIC 118798035 b is a warm low-density Neptune with a mass of 0.0250 +/- 0.0023 MJ, a radius of 0.655 +/- 0.018 RJ, and an orbital period of 11.507 days, TIC 118798035 c is a warm Saturn with a mass of 0.403 +/- 0.024 MJ, a radius of 0.973 +/- 0.023 RJ, and an orbital period of 22.564 days, and TIC 118798035 d is a warm Jupiter with a mass of 0.773 +/- 0.052 MJ, a radius of 0.923 +/- 0.044 RJ, and an orbital period of 48.925 days. The bulk metallicities of the three planets do not fully follow the mass-metallicity correlation found for the giant planets of the solar system, which hints at a somewhat different formation history for the planets of the TIC 118798035 system.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10303 - Particles and field physics

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Astrophysical Journal Letters

ISSN

2041-8205

e-ISSN

2041-8213

Volume of the periodical

995

Issue of the periodical within the volume

2

Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

L43

UT code for WoS article

001636295400001

EID of the result in the Scopus database

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