355 citations · 4.7k across the 81 of their papers we have counts for
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Characterisation of stellar activity of M dwarfs. I. Long-timescale variability in a large sample and detection of new cycles
L. Mignon, N. Meunier, X. Delfosse +7
M dwarfs are active stars that exhibit variability in chromospheric emission and photometry at short and long timescales, including long cycles that are related to dynamo processes…
The detection and characterisation of 54 massive companions with the SOPHIE spectrograph -- 7 new brown dwarfs and constraints on the BD desert
F. Kiefer, G. Hébrard, J. Sahlmann +35
Brown-dwarfs are substellar objects with masses intermediate between planets and stars within about 13-80Mjup. While isolated BDs are most likely produced by gravitational collapse…
On the long cycle variability of the Algol OGLE-LMC-DPV-065 and its stellar, orbital and disk parameters
R. E. Mennickent, M. Cabezas, G. Djurašević +13
OGLE-LMC-DPV-065 is an interacting binary whose double-hump long photometric cycle remains hitherto unexplained. We analyze photometric time series available in archive datasets sp…
Magnetic activity in the HARPS M-dwarf sample. The rotation-activity relationship for very low-mass stars through R'HK
Nicola Astudillo-Defru, Xavier Delfosse, Xavier Bonfils +3
Atmospheric magnetic fields in stars with convective envelopes heat stellar chromospheres. Starting with the historical Mount Wilson monitoring program, CaH&K lines have been widel…
The SOPHIE search for northern extrasolar planets VIII. Follow-up of ELODIE candidates: long-period brown-dwarf companions
F. Bouchy, D. Ségransan, R. F. Díaz +29
Long-period brown dwarf companions detected in radial velocity surveys are important targets for direct imaging and astrometry to calibrate the mass-luminosity relation of substell…