Analysis of Early Science observations with the CHaracterising ExOPlanets Satellite (CHEOPS) using pycheops
(2022) In Monthly Notices of the Royal Astronomical Society 514(1). p.77-104- 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... (More)
- 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. © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society. (Less)
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- author
- Maxted, P.F.L. ; Davies, M.B. LU and Walton, N.A.
- author collaboration
- organization
- publishing date
- 2022
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Methods: data analysis, Planets and satellites: fundamental parameters, Software: data analysis, Data handling, Extrasolar planets, Information analysis, Open source software, Open systems, Orbits, Space telescopes, Stars, Earth orbits, Exo-planets, Light curves, Methods. Data analysis, Open-source softwares, Software data, Software: data analyse, State-of-the-art techniques, Ultrahigh precision, Satellites
- in
- Monthly Notices of the Royal Astronomical Society
- volume
- 514
- issue
- 1
- pages
- 28 pages
- publisher
- Oxford University Press
- external identifiers
-
- scopus:85133372988
- ISSN
- 0035-8711
- DOI
- 10.1093/mnras/stab3371
- language
- English
- LU publication?
- yes
- id
- 16f836b8-40fd-457c-b46f-61c386a1f3be
- date added to LUP
- 2022-09-14 13:03:24
- date last changed
- 2023-05-10 15:07:11
@article{16f836b8-40fd-457c-b46f-61c386a1f3be, 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. © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.}}, author = {{Maxted, P.F.L. and Davies, M.B. and Walton, N.A.}}, issn = {{0035-8711}}, keywords = {{Methods: data analysis; Planets and satellites: fundamental parameters; Software: data analysis; Data handling; Extrasolar planets; Information analysis; Open source software; Open systems; Orbits; Space telescopes; Stars; Earth orbits; Exo-planets; Light curves; Methods. Data analysis; Open-source softwares; Software data; Software: data analyse; State-of-the-art techniques; Ultrahigh precision; Satellites}}, language = {{eng}}, number = {{1}}, pages = {{77--104}}, publisher = {{Oxford University Press}}, series = {{Monthly Notices of the Royal Astronomical Society}}, title = {{Analysis of Early Science observations with the CHaracterising ExOPlanets Satellite (CHEOPS) using pycheops}}, url = {{http://dx.doi.org/10.1093/mnras/stab3371}}, doi = {{10.1093/mnras/stab3371}}, volume = {{514}}, year = {{2022}}, }