TOI-1130: A photodynamical analysis of a hot Jupiter in resonance with an inner low-mass planet

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F23%3A00575157" target="_blank" >RIV/67985815:_____/23:00575157 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11320/23:10476210

Result on the web

<a href="https://hdl.handle.net/11104/0345819" target="_blank" >https://hdl.handle.net/11104/0345819</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/202244617" target="_blank" >10.1051/0004-6361/202244617</a>

Result language

angličtina

Original language name

TOI-1130: A photodynamical analysis of a hot Jupiter in resonance with an inner low-mass planet

Original language description

The TOI-1130 is a known planetary system around a K-dwarf consisting of a gas giant planet, TOI-1130 c on an 8.4-day orbit that is accompanied by an inner Neptune-sized planet, TOI-1130 b, with an orbital period of 4.1 days. We collected precise radial velocity (RV) measurements of TOI-1130 with the HARPS and PFS spectrographs as part of our ongoing RV follow-up program. We performed a photodynamical modeling of the HARPS and PFS RVs, along with transit photometry from the Transiting Exoplanet Survey Satellite (TESS) and the TESS Follow-up Observing Program (TFOP). We determined the planet masses and radii of TOI-1130 b and TOI1130 c to be Mb = 19.28 +/- 0.97 M. and Rb = 3.56 +/- 0.13 R., and Mc = 325.59 +/- 5.59 M. and Rc = 13.32+1.551.41 R., respectively. We have spectroscopically confirmed the existence of TOI-1130 b, which had previously only been validated. We find that the two planets have orbits with small eccentricities in a 2:1 resonant configuration. This is the first known system with a hot Jupiter and an inner lower mass planet locked in a mean-motion resonance. TOI-1130 belongs to the small, yet growing population of hot Jupiters with an inner low-mass planet that poses a challenge to the pathway scenario for hot Jupiter formation. We also detected a linear RV trend that is possibly due to the presence of an outer massive companion.

Czech name

—

Czech description

—

Type

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

CEP classification

—

OECD FORD branch

10308 - Astronomy (including astrophysics,space science)

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

Publication year

2023

Confidentiality

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

Name of the periodical

Astronomy & Astrophysics

ISSN

0004-6361

e-ISSN

1432-0746

Volume of the periodical

675

Issue of the periodical within the volume

July

Country of publishing house

FR - FRANCE

Number of pages

19

Pages from-to

A115

UT code for WoS article

001030296600005

EID of the result in the Scopus database

2-s2.0-85165527366