109 citations · 126 across the 3 of their papers we have counts for
3 papers
astro-ph.SR2024
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…
astro-ph.EP2019★ 109 cited
Measuring precise radial velocities on individual spectral lines : II. Dependance of stellar activity signal on line depth
M. Cretignier, X. Dumusque, R. Allart +2
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 RV measur…
astro-ph.EP2009★ 17 cited
Extrasolar planets and brown dwarfs around A-F type stars - VII. Theta Cygni radial velocity variations: planets or stellar phenomenon?
M. Desort, A. -M. Lagrange, F. Galland +23
(abridged) In the frame of the search for extrasolar planets and brown dwarfs around early-type main-sequence stars, we present the results obtained on the early F-type star Theta…