activity
20192025
most citedDiscovery of a dormant 33 solar-mass black hole in pre-release Gaia astrometry

129 citations · 824 across the 26 of their papers we have counts for

collaborators
Showing 2021Show all

6 papers · 1 filter

astro-ph.EP2021★ 15 cited

The HARPS search for southern extra-solar planets. XLVI: 12 super-Earths around the solar type stars HD39194, HD93385, HD96700, HD154088, and HD189567

N. Unger, D. Ségransan, D. Queloz +23

Context. We present precise radial-velocity measurements of five solar-type stars observed with the HARPS Echelle spectrograph mounted on the 3.6-m telescope in La Silla (ESO, Chil…

astro-ph.EP2021★ 29 cited

Testing whether a signal is strictly periodic. Application to disentangling planets and stellar activity in radial velocities

Nathan C. Hara, Jean-Baptiste Delisle, Nicolas Unger +1

Searches for periodicity in time series are often done with models of periodic signals, whose statistical significance is assessed via false alarm probabilities or Bayes factors. H…

astro-ph.EP2021★ 38 cited

Improving exoplanet detection capabilities with the false inclusion probability. Comparison with other detection criteria in the context of radial velocities

Nathan C. Hara, Nicolas Unger, Jean-Baptiste Delisle +2

Context. In exoplanet searches with radial velocity data, the most common statistical significance metrics are the Bayes factor and the false alarm probability (FAP). Both have pro…

astro-ph.EP2021★ 47 cited

A transiting warm giant planet around the young active star TOI-201

Melissa J. Hobson, Rafael Brahm, Andres Jordán +44

We present the confirmation of the eccentric warm giant planet TOI-201 b, first identified as a candidate in \textit{TESS} photometry (Sectors 1-8, 10-13, and 27-28) and confirmed…

astro-ph.EP2021★ 28 cited

The HARPS search for southern extra-solar planets XLV. Two Neptune mass planets orbiting HD 13808: a study of stellar activity modelling's impact on planet detection

E. Ahrer, D. Queloz, V. M. Rajpaul +11

We present a comprehensive analysis of 10 years of HARPS radial velocities of the K2V dwarf star HD 13808, which has previously been reported to host two unconfirmed planet candida…

astro-ph.GA2021★ 13 cited

Gaia Early Data Release 3: Structure and properties of the Magellanic Clouds

Gaia Collaboration, X. Luri, L. Chemin +417

We compare the Gaia DR2 and Gaia EDR3 performances in the study of the Magellanic Clouds and show the clear improvements in precision and accuracy in the new release. We also show…