The effect of stellar contamination on low-resolution transmission spectroscopy: needs identified by NASA's Exoplanet Exploration Program Study Analysis Group 21
BV Rackham, N Espinoza… - RAS Techniques …, 2023 - academic.oup.com
Abstract Study Analysis Group 21 (SAG21) of NASA's Exoplanet Exploration Program
Analysis Group was organized to study the effect of stellar contamination on space-based …
Analysis Group was organized to study the effect of stellar contamination on space-based …
The CHEOPS mission
W Benz, C Broeg, A Fortier, N Rando, T Beck… - Experimental …, 2021 - Springer
Abstract The CHaracterising ExOPlanet Satellite (CHEOPS) was selected on October 19,
2012, as the first small mission (S-mission) in the ESA Science Programme and successfully …
2012, as the first small mission (S-mission) in the ESA Science Programme and successfully …
Transit detection of the long-period volatile-rich super-Earth ν2 Lupi d with CHEOPS
Exoplanets transiting bright nearby stars are key objects for advancing our knowledge of
planetary formation and evolution. The wealth of photons from the host star gives detailed …
planetary formation and evolution. The wealth of photons from the host star gives detailed …
Analysis of Early Science observations with the CHaracterising ExOPlanets Satellite (CHEOPS) using pycheops
PFL Maxted, D Ehrenreich, TG Wilson… - Monthly Notices of …, 2022 - academic.oup.com
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 …
observes bright stars at high cadence from low-Earth orbit. The main aim of the mission is to …
Connecting photometric and spectroscopic granulation signals with CHEOPS and ESPRESSO
Context. Stellar granulation generates fluctuations in photometric and spectroscopic data
whose properties depend on the stellar type, composition, and evolutionary state …
whose properties depend on the stellar type, composition, and evolutionary state …
Scaling relations of convective granulation noise across the HR diagram from 3D stellar atmosphere models
LF Rodríguez Díaz, L Bigot… - Monthly Notices of …, 2022 - academic.oup.com
High-precision photometric data from space missions have improved our understanding of
stellar granulation. These observations have shown with precision the stochastic brightness …
stellar granulation. These observations have shown with precision the stochastic brightness …
Spatially resolved spectroscopy across stellar surfaces-V. Observational prospects: toward Earth-like exoplanet detection
Context. High-precision stellar analyses require hydrodynamic 3D modeling. Testing such
models is feasible by retrieving spectral line shapes across stellar disks, using differential …
models is feasible by retrieving spectral line shapes across stellar disks, using differential …
A fast, two-dimensional Gaussian process method based on celerite: applications to transiting exoplanet discovery and characterization
TA Gordon, E Agol… - The Astronomical …, 2020 - iopscience.iop.org
Gaussian processes (GPs) are commonly used as a model of stochastic variability in
astrophysical time series. In particular, GPs are frequently employed to account for …
astrophysical time series. In particular, GPs are frequently employed to account for …
Solar photospheric spectrum microvariability-I. Theoretical searches for proxies of radial-velocity jittering
D Dravins, HG Ludwig - Astronomy & Astrophysics, 2023 - aanda.org
Context. Extreme precision radial-velocity spectrometers enable extreme precision in stellar
spectroscopy. Searches for low-mass exoplanets around solar-type stars are limited by …
spectroscopy. Searches for low-mass exoplanets around solar-type stars are limited by …
Power of wavelets in analyses of transit and phase curves in the presence of stellar variability and instrumental noise-I. Method and validation
S Csizmadia, AMS Smith, S Kálmán, J Cabrera… - Astronomy & …, 2023 - aanda.org
Context. Stellar photometric variability and instrumental effects, such as cosmic ray hits, data
discontinuities, data leaks, instrument aging, and so on, lead to difficulties in the …
discontinuities, data leaks, instrument aging, and so on, lead to difficulties in the …