The effect of stellar contamination on low-resolution transmission spectroscopy: needs identified by NASA's Exoplanet Exploration Program Study Analysis Group 21
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 chemical make-up of the Sun: A 2020 vision
Context. The chemical composition of the Sun is a fundamental yardstick in astronomy,
relative to which essentially all cosmic objects are referenced. As such, having accurate …
relative to which essentially all cosmic objects are referenced. As such, having accurate …
The impact of stellar surface magnetoconvection and oscillations on the detection of temperate, Earth-mass planets around Sun-like stars
HM Cegla - Geosciences, 2019 - mdpi.com
Detecting and confirming terrestrial planets is incredibly difficult due to their tiny size and
mass relative to Sun-like host stars. However, recent instrumental advancements are making …
mass relative to Sun-like host stars. However, recent instrumental advancements are making …
Synthetic stellar photometry–I. General considerations and new transformations for broad-band systems
L Casagrande, DA VandenBerg - Monthly Notices of the Royal …, 2014 - academic.oup.com
After a pedagogical introduction to the main concepts of synthetic photometry, colours and
bolometric corrections in the Johnson–Cousins, 2MASS, and HST-ACS/WFC3 photometric …
bolometric corrections in the Johnson–Cousins, 2MASS, and HST-ACS/WFC3 photometric …
The Stagger-grid: A grid of 3D stellar atmosphere models-I. Methods and general properties
Aims. We present the Stagger-grid, a comprehensive grid of time-dependent, three-
dimensional (3D), hydrodynamic model atmospheres for late-type stars with realistic …
dimensional (3D), hydrodynamic model atmospheres for late-type stars with realistic …
Measuring precise radial velocities on individual spectral lines-II. Dependance of stellar activity signal on line depth
M Cretignier, X Dumusque, R Allart, F Pepe… - Astronomy & …, 2020 - aanda.org
Context. Although the new generation of radial-velocity (RV) instruments such as
ESPRESSO are expected to reach the long-term precision required to find other earths, the …
ESPRESSO are expected to reach the long-term precision required to find other earths, the …
A new correction of stellar oscillation frequencies for near-surface effects
Context. Space-based observations of solar-like oscillations present an opportunity to
constrain stellar models using individual mode frequencies. However, current stellar models …
constrain stellar models using individual mode frequencies. However, current stellar models …
Radial-velocity fitting challenge-II. First results of the analysis of the data set
X Dumusque, F Borsa, M Damasso, RF Diaz… - Astronomy & …, 2017 - aanda.org
Context. Radial-velocity (RV) signals arising from stellar photospheric phenomena are the
main limitation for precise RV measurements. Those signals induce RV variations an order …
main limitation for precise RV measurements. Those signals induce RV variations an order …
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 …
The Rossiter-McLaughlin effect reloaded: Probing the 3D spin-orbit geometry, differential stellar rotation, and the spatially-resolved stellar spectrum of star-planet …
When a planet transits its host star, it blocks regions of the stellar surface from view; this
causes a distortion of the spectral lines and a change in the line-of-sight (LOS) velocities …
causes a distortion of the spectral lines and a change in the line-of-sight (LOS) velocities …