Exploiting timing capabilities of the CHEOPS mission with warm-Jupiter planets
Artikel i vetenskaplig tidskrift, 2021

We present 17 transit light curves of seven known warm-Jupiters observed with the CHaracterising ExOPlanet Satellite (CHEOPS). The light curves have been collected as part of the CHEOPS Guaranteed Time Observation (GTO) program that searches for transit-timing variation (TTV) of warm-Jupiters induced by a possible external perturber to shed light on the evolution path of such planetary systems. We describe the CHEOPS observation process, from the planning to the data analysis. In this work, we focused on the timing performance of CHEOPS, the impact of the sampling of the transit phases, and the improvement we can obtain by combining multiple transits together. We reached the highest precision on the transit time of about 13-16 s for the brightest target (WASP-38, G = 9.2) in our sample. From the combined analysis of multiple transits of fainter targets with G ≥ 11, we obtained a timing precision of ∼2 min. Additional observations with CHEOPS, covering a longer temporal baseline, will further improve the precision on the transit times and will allow us to detect possible TTV signals induced by an external perturber.

Planets and satellites: individual: HAT-P-17 b, KELT-6 b, WASP-8 b, WASP-38 b, WASP-106 b, WASP-130 b, K2-287 b

Techniques: photometric

Författare

L. Borsato

Osservatorio Astronomico di Padova

Giampaolo P. Piotto

Osservatorio Astronomico di Padova

Università di Padova

D. Gandolfi

Istituto nazionale di astrofisica (INAF)

Valerio Nascimbeni

Osservatorio Astronomico di Padova

G. Lacedelli

Università di Padova

Osservatorio Astronomico di Padova

F. Marzari

Università di Padova

N. Billot

Université de Genève

P. Maxted

Keele University

S.G. Sousa

Universidade do Porto

A. C. Cameron

University of St Andrews

A. Bonfanti

Institut fur Weltraumforschung

T.G. Wilson

University of St Andrews

L. M. Serrano

Istituto nazionale di astrofisica (INAF)

Z. Garai

Eötvös Loránd University (ELTE)

Slovenská akadémia Vied

Y. Alibert

Universität Bern

R. Alonso

Universidad de la Laguna

Instituto Astrofisico de Canarias

J. Asquier

European Space Research and Technology Centre (ESA ESTEC)

T. Bárczy

Admatis

T. Bandy

Center for Space and Habitability

D. Barrado

European Space Astronomy Centre (ESAC)

S.C.C. Barros

Universidade do Porto

W. Baumjohann

Institut fur Weltraumforschung

M. Beck

Université de Genève

T. Beck

Center for Space and Habitability

W. Benz

Universität Bern

Center for Space and Habitability

X. Bonfils

Université Grenoble Alpes

A. Brandeker

Stockholms universitet

C. Broeg

Universität Bern

J. Cabrera

Deutsches Zentrums für Luft- und Raumfahrt (DLR)

S. Charnoz

Institut de Physique du Globe de Paris

Szilard Csizmadia

Deutsches Zentrums für Luft- und Raumfahrt (DLR)

M. B. Davies

Lunds universitet

M. Deleuil

Lunds universitet

L. Delrez

Universite de Liège

Université de Genève

O. Demangeon

Universidade do Porto

B.O. Demory

Center for Space and Habitability

A. L. Des Etangs

Institut d 'Astrophysique de Paris

D. Ehrenreich

Université de Genève

Anders Erikson

Deutsches Zentrums für Luft- und Raumfahrt (DLR)

G. A. Escudé

Institut d'Estudis Espacials de Catalunya (IEEC)

Institut de Ciències de l'Espai (ICE) - CSIC

A. Fortier

Universität Bern

L. Fossati

Institut fur Weltraumforschung

C.W.M. Fridlund

Universiteit Leiden

Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik

Michaël Gillon

Universite de Liège

M. Guedel

Universität Wien

J. Hasiba

Institut fur Weltraumforschung

Kevin Heng

The University of Warwick

Center for Space and Habitability

S. Hoyer

Laboratoire d'Astrophysique de Marseille

K. Isaak

European Space Research and Technology Centre (ESA ESTEC)

L. Kiss

Magyar Tudomanyos Akademia

E. Kopp

Deutsches Zentrums für Luft- und Raumfahrt (DLR)

J. Laskar

Observatoire de Paris

M. Lendl

Université de Genève

C. Lovis

Université de Genève

D. Magrin

Osservatorio Astronomico di Padova

M. Munari

Osservatorio Astronomico di Padova

G. Olofsson

Stockholms universitet

R. Ottensamer

Universität Wien

I. Pagano

Osservatorio Astronomico di Padova

Enric Palle

Instituto Astrofisico de Canarias

Universidad de la Laguna

G. Peter

Deutsches Zentrums für Luft- und Raumfahrt (DLR)

Don L. Pollacco

The University of Warwick

D. Queloz

University of Cambridge

Université de Genève

Roberto Ragazzoni

Università di Padova

Osservatorio Astronomico di Padova

N. Rando

European Space Research and Technology Centre (ESA ESTEC)

H. Rauer

Technische Universität Berlin

Freie Universität Berlin

Deutsches Zentrums für Luft- und Raumfahrt (DLR)

I. Ribas

Institut d'Estudis Espacials de Catalunya (IEEC)

Institut de Ciències de l'Espai (ICE) - CSIC

D. Segransan

Université de Genève

N. C. Santos

Universidade do Porto

Gaetano Scandariato

Osservatorio Astronomico di Padova

A.E. Simon

Universität Bern

Alexis M. S. Smith

Deutsches Zentrums für Luft- und Raumfahrt (DLR)

Manfred B. Steller

Institut fur Weltraumforschung

G.M. Szabó

Eötvös Loránd University (ELTE)

Nicolas Thomas

Universität Bern

S. Udry

Université de Genève

V. Van Grootel

Universite de Liège

N. A. Walton

University of Cambridge

Monthly Notices of the Royal Astronomical Society

0035-8711 (ISSN) 1365-2966 (eISSN)

Vol. 506 3 3810-3830

Ämneskategorier

Analytisk kemi

Astronomi, astrofysik och kosmologi

Atom- och molekylfysik och optik

DOI

10.1093/mnras/stab1782

Mer information

Senast uppdaterat

2021-09-13