activity
20222025
most citedDirect discovery of the inner exoplanet in the HD206893 system. Evidence for deuterium burning in a planetary-mass companion

79 citations · 253 across the 9 of their papers we have counts for

collaborators

9 papers

astro-ph.EP2025★ 64 cited

A temperate super-Jupiter imaged with JWST in the mid-infrared

E. C. Matthews, A. L. Carter, P. Pathak +16

Of the ~25 directly imaged planets to date, all are younger than 500Myr and all but 6 are younger than 100Myr. Eps Ind A (HD209100, HIP108870) is a K5V star of roughly solar age (r…

astro-ph.EP2024★ 4 cited

Searching for substellar companion candidates with Gaia. II. A catalog of 9,698 planet candidate solar-type hosts

Flavien Kiefer, Anne-Marie Lagrange, Pascal Rubini +1

In a previous paper, we introduced a new tool called GaiaPMEX. It characterizes the mass and semi-major axis relative to the central star (sma) of a possible companion around any s…

astro-ph.EP2024★ 9 cited

Searching for substellar companion candidates with Gaia. I. Introducing the GaiaPMEX tool

Flavien Kiefer, Anne-Marie Lagrange, Pascal Rubini +1

The Gaia mission is expected to yield the detection of several thousands of exoplanets, perhaps at least doubling the number of known exoplanets. Although the harvest is expected t…

astro-ph.EP2023★ 19 cited

The SOPHIE search for northern extrasolar planets-XIX. A system including a cold sub-Neptune potentially transiting a V = 6.5 star HD88986

N. Heidari, I. Boisse, N. C. Hara +51

Transiting planets with orbital periods longer than 40 d are extremely rare among the 5000+ planets discovered so far. The lack of discoveries of this population poses a challenge…

astro-ph.EP2023★ 12 cited

Multi techniques approach to identify and/or constrain radial velocity sub-stellar companions

F. Philipot, A. -M. Lagrange, F. Kiefer +3

Context. Although more than one thousand sub-stellar companions have already been detected with the radial velocity (RV) method, many new companions remain to be detected in the pu…

astro-ph.EP2023★ 18 cited

Preparing an unsupervised massive analysis of SPHERE high contrast data with the PACO algorithm

A. Chomez, A. -M. Lagrange, P. Delorme +9

We aim at searching for exoplanets on the whole ESO/VLT-SPHERE archive with improved and unsupervised data analysis algorithm that could allow to detect massive giant planets at 5…

astro-ph.EP2023★ 28 cited

On the radial distribution of giant exoplanets at Solar System scales

A. -M. Lagrange, F. Philipot, P. Rubini +5

Context. Giant planets play a major role in multiple planetary systems. Knowing their demographics is important to test their overall impact on planetary systems formation. It is a…

astro-ph.EP2023★ 20 cited

Updated characterization of long-period single companion by combining radial velocity, relative astrometry, and absolute astrometry

F. Philipot, A. -M. Lagrange, P. Rubini +2

Context. Thanks to more than 20 years of monitoring, the radial velocity (RV) method has detected long-period companions (P > 10yr) around several dozens of stars. Yet, the true na…

astro-ph.EP2022★ 79 cited

Direct discovery of the inner exoplanet in the HD206893 system. Evidence for deuterium burning in a planetary-mass companion

S. Hinkley, S. Lacour, G. -D. Marleau +110

Long term precise radial velocity (RV) monitoring of the nearby star HD206893, as well as anomalies in the system proper motion, have suggested the presence of an additional, inner…