activity
20162024
most citedNightside condensation of iron in an ultra-hot giant exoplanet

316 citations · 2.1k across the 41 of their papers we have counts for

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Showing 2021Show all

10 papers · 1 filter

astro-ph.EP2021★ 32 cited

BEBOP III. Observations and an independent mass measurement of Kepler-16 (AB) b -- the first circumbinary planet detected with radial velocities

Amaury H. M. J. Triaud, Matthew R. Standing, Neda Heidari +30

The radial velocity method is amongst the most robust and most established means of detecting exoplanets. Yet, it has so far failed to detect circumbinary planets despite their rel…

astro-ph.EP2021★ 17 cited

HD207897 b: A dense sub-Neptune transiting a nearby and bright K-type star

N. Heidari, I. Boisse, J. Orell-Mique +90

We present the discovery and characterization of a transiting sub-Neptune orbiting with a 16.20 day period around a nearby (28 pc) and bright(V=8.37) K0V star HD207897 (TOI-1611).…

astro-ph.EP2021★ 107 cited

Warm terrestrial planet with half the mass of Venus transiting a nearby star

Olivier D. S. Demangeon, M. R. Zapatero Osorio, Y. Alibert +42

The advent of a new generation of radial velocity instruments has allowed us to break the one Earth-mass barrier. We report a new milestone in this context with the detection of th…

astro-ph.EP2021★ 12 cited

The SOPHIE search for northern extrasolar planets. XVIII: Six new cold Jupiters, including one of the most eccentric exoplanet orbits

O. D. S. Demangeon, S. Dalal, G. Hébrard +28

Context. Due to their low transit probability, the long-period planets are, as a population, only partially probed by transit surveys. Radial velocity surveys thus have a key role…

astro-ph.EP2021★ 87 cited

Transit detection of the long-period volatile-rich super-Earth Lupi d with

Laetitia Delrez, David Ehrenreich, Yann Alibert +75

Exoplanets transiting bright nearby stars are key objects for advancing our knowledge of planetary formation and evolution. The wealth of photons from the host star gives detailed…

astro-ph.EP2021★ 77 cited

YARARA: Significant improvement of RV precision through post-processing of spectral time-series

M. Cretignier, X. Dumusque, N. C. Hara +1

Aims: Even the most-precise radial-velocity instruments gather high-resolution spectra that present systematic errors that a data reduction pipeline cannot identify and correct for…

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

The SOPHIE search for northern extrasolar planets -- XVII. A wealth of new objects: Six cool Jupiters, three brown dwarfs, and 16 low-mass binary stars

S. Dalal, F. Kiefer, G. Hébrard +30

Distinguishing classes within substellar objects and understanding their formation and evolution need larger samples of substellar companions such as exoplanets, brown dwarfs, and…

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★ 195 cited

Six transiting planets and a chain of Laplace resonances in TOI-178

A. Leleu, Y. Alibert, N. C. Hara +152

Determining the architecture of multi-planetary systems is one of the cornerstones of understanding planet formation and evolution. Resonant systems are especially important as the…