122 citations · 1.3k across the 55 of their papers we have counts for
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A possible misaligned orbit for the young planet AU Mic c
H. Yu, Z. Garai, M. Cretignier +98
The AU Microscopii planetary system is only 24 Myr old, and its geometry may provide clues about the early dynamical history of planetary systems. Here, we present the first measur…
Precise and efficient modeling of stellar-activity-affected solar spectra using SOAP-GPU
Yinan Zhao, Xavier Dumusque, Michael Cretignier +4
One of the main obstacles in exoplanet detection when using the radial velocity (RV) technique is the presence of stellar activity signal induced by magnetic regions. In this conte…
Stellar surface information from the Ca II H&K lines -- II. Defining better activity proxies
M. Cretignier, N. C. Hara, A. G. M. Pietrow +6
In our former paper I, we showed on the Sun that different active regions possess unique intensity profiles on the Ca II H & K lines. We now extend the analysis by showing how thos…
A Gaussian process model for stellar activity in 2-D line profile time-series
Haochuan Yu, Suzanne Aigrain, Baptiste Klein +3
Stellar active regions like spots and faculae can distort the shapes of spectral lines, inducing variations in the radial velocities that are often orders of magnitude larger than…
The K2 and TESS Synergy III: search and rescue of the lost ephemeris for K2's first planet
Erica Thygesen, Joseph E. Rodriguez, Zoë L. De Beurs +13
K2-2 b/HIP 116454 b, the first exoplanet discovery by K2 during its Two-Wheeled Concept Engineering Test, is a sub-Neptune (2.5 0.1 , 9.7 1.2 ) orbi…
The ANTARESS workflow I. Optimal extraction of spatially resolved stellar spectra with high-resolution transit spectroscopy
V. Bourrier, J. -B. Delisle, C. Lovis +17
High-resolution spectrographs open a detailed window onto the atmospheres of stars and planets. As the number of systems observed with different instruments grows, it is crucial to…