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  1. Pubblicazioni

Analysis of Early Science observations with the CHaracterising ExOPlanets Satellite (CHEOPS) using PYCHEOPS

Articolo
Data di Pubblicazione:
2022
Abstract:
CHEOPS (CHaracterising ExOPlanet Satellite) is an ESA S-class mission that observes bright stars at high cadence from low-Earth orbit. The main aim of the mission is to characterize exoplanets that transit nearby stars using ultrahigh precision photometry. Here, we report the analysis of transits observed by CHEOPS during its Early Science observing programme for four well-known exoplanets: GJ 436 b, HD 106315 b, HD 97658 b, and GJ 1132 b. The analysis is done using pycheops, an open-source software package we have developed to easily and efficiently analyse CHEOPS light-curve data using state-of-the-art techniques that are fully described herein. We show that the precision of the transit parameters measured using CHEOPS is comparable to that from larger space telescopes such as Spitzer Space Telescope and Kepler. We use the updated planet parameters from our analysis to derive new constraints on the internal structure of these four exoplanets.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
methods: data analysis; software: data analysis; planets and satellites: fundamental parameters
Elenco autori:
P F L Maxted; D Ehrenreich; T G Wilson; Y Alibert; A Collier Cameron; S Hoyer; S G Sousa; G Olofsson; A Bekkelien; A Deline; L Delrez; A Bonfanti; L Borsato; R Alonso; G Anglada Escud??; D Barrado; S C C Barros; W Baumjohann; M Beck; T Beck; W Benz; N Billot; F Biondi; X Bonfils; A Brandeker; C Broeg; T B??rczy; J Cabrera; S Charnoz; C Corral Van Damme; Sz Csizmadia; M B Davies; M Deleuil; O D S Demangeon; B-O Demory; A Erikson; H G Flor??n; A Fortier; L Fossati; M Fridlund; D Futyan; D Gandolfi; M Gillon; M Guedel; P Guterman; K Heng; K G Isaak; L Kiss; J Laskar; A Lecavelier des Etangs; M Lendl; C Lovis; D Magrin; V Nascimbeni; R Ottensamer; I Pagano; E Pall??; G Peter; G Piotto; D Pollacco; F J Pozuelos; D Queloz; R Ragazzoni; N Rando; H Rauer; C Reimers; I Ribas; N C Santos; G Scandariato; A E Simon; A M S Smith; M Steller; M I Swayne; Gy M Szab??; D S??gransan; N Thomas; S Udry; V Van Grootel; N A Walton
Autori di Ateneo:
GANDOLFI Davide
Link alla scheda completa:
https://iris.unito.it/handle/2318/1948614
Link al Full Text:
https://iris.unito.it/retrieve/handle/2318/1948614/1220752/Maxted_b_2022.pdf
Pubblicato in:
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Journal
Progetto:
GANDOLFI D. - Fondaz.CRT - II tornata 2018 - Rif. 2018.2323 - "Gaseous or rocky? Unveiling the nature of small worlds"
  • Aree Di Ricerca

Aree Di Ricerca

Settori (2)


PE9_3 - Exoplanetary science, formation and characterization of extrasolar planets - (2022)

SCIENZE MATEMATICHE, CHIMICHE, FISICHE - Cosmologia e Universo
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