World's Best Scientists 2026 revealed!
Award Badge
Physics
Switzerland
2026

D-Index & Metrics

Physics

D-Index
145
Citations
75982
World Ranking
340
National Ranking
9

Research.com Recognitions

  • 2026 - Research.com Physics in Switzerland Leader Award
  • 2025 - Research.com Physics in Switzerland Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Astronomy
  • Exoplanet
  • Planet

His scientific interests lie mostly in Astrophysics, Exoplanet, Planet, Astronomy and Planetary system. In the subject of general Astrophysics, his work in Radial velocity, Stars, Rogue planet and Orbital eccentricity is often linked to Angular diameter distance, thereby combining diverse domains of study. His biological study spans a wide range of topics, including Spectral line, Light curve, Optics and Exosphere.

His work in Planet covers topics such as Orbital period which are related to areas like Rotation period. In general Astronomy study, his work on Hot Jupiter, Brown dwarf, Giant planet and Redshift quantization often relates to the realm of Lyman-alpha forest, thereby connecting several areas of interest. His study in Planetary system is interdisciplinary in nature, drawing from both Metallicity, Terrestrial planet and Stellar rotation.

His most cited work include:

  • Metals in the exosphere of the highly irradiated planet WASP-12b (311 citations)
  • Efficient identification of exoplanetary transit candidates from SuperWASP light curves (308 citations)
  • The Broadband Infrared Emission Spectrum of the Exoplanet HD 189733b (271 citations)

What are the main themes of his work throughout his whole career to date?

His primary areas of investigation include Astrophysics, Planet, Exoplanet, Astronomy and Radial velocity. In most of his Astrophysics studies, his work intersects topics such as Transit. The study incorporates disciplines such as Metallicity, Light curve and Radius in addition to Planet.

His Exoplanet research incorporates themes from Spectral line, Neptune, Minimum mass and Jupiter. His Radial velocity research is multidisciplinary, incorporating perspectives in Super-Earth, Orbital eccentricity, Photometry and Circumstellar habitable zone. His Planetary system research integrates issues from Astrobiology, Terrestrial planet and Stellar rotation.

He most often published in these fields:

  • Astrophysics (82.43%)
  • Planet (70.30%)
  • Exoplanet (50.50%)

What were the highlights of his more recent work (between 2016-2021)?

  • Astrophysics (82.43%)
  • Planet (70.30%)
  • Exoplanet (50.50%)

In recent papers he was focusing on the following fields of study:

Stéphane Udry focuses on Astrophysics, Planet, Exoplanet, Radial velocity and Planetary system. Stéphane Udry interconnects Spectral line and Radius in the investigation of issues within Astrophysics. His Planet study is focused on Astronomy in general.

He has included themes like Brown dwarf, Jupiter, Line, Spectroscopy and Neptune in his Exoplanet study. Stéphane Udry combines subjects such as Spectrograph, Light curve, Orbital elements, Super-Earth and Circumstellar habitable zone with his study of Radial velocity. His Planetary system study integrates concerns from other disciplines, such as Stellar rotation and Terrestrial planet.

Between 2016 and 2021, his most popular works were:

  • Helium in the eroding atmosphere of an exoplanet (174 citations)
  • Atmospheric characterization of Proxima b by coupling the SPHERE high-contrast imager to the ESPRESSO spectrograph (106 citations)
  • The HARPS search for southern extra-solar planets - XLI. A dozen planets around the M dwarfs GJ 3138, GJ 3323, GJ 273, GJ 628, and GJ 3293 (85 citations)

In his most recent research, the most cited papers focused on:

  • Astronomy
  • Astrophysics
  • Solar System

Astrophysics, Planet, Exoplanet, Planetary system and Radial velocity are his primary areas of study. His work on Stars, Hot Jupiter, Photometry and Telescope as part of general Astrophysics research is frequently linked to Context, thereby connecting diverse disciplines of science. His research investigates the connection between Planet and topics such as Orbital elements that intersect with problems in Brown dwarf and Low Mass.

The various areas that Stéphane Udry examines in his Exoplanet study include Spectroscopy, Solar System, Neptune and Exosphere. His study looks at the relationship between Planetary system and fields such as Terrestrial planet, as well as how they intersect with chemical problems. His Radial velocity study frequently draws connections to adjacent fields such as Circumstellar habitable zone.

Best Publications

  • The Geneva-Copenhagen survey of the Solar neighbourhood - Ages, metallicities, and kinematic properties of ~14 000 F and G dwarfs

    Birgitta Nordström;Birgitta Nordström;M. Mayor;J. Andersen;J. Holmberg

  • The PLATO 2.0 Mission

    H. Rauer;C. Catala;C. Aerts;T. Appourchaux

  • Transiting Exoplanet Survey Satellite (TESS)

    George R. Ricker;Joshua N. Winn;Roland Vanderspek;David W. Latham

  • No planet for HD 166435

    D. Queloz;G. W. Henry;J. P. Sivan;S. L. Baliunas

  • The PLATO 2.0 mission

    H. Rauer;H. Rauer;C. Catala;C. Aerts;T. Appourchaux

  • A super-Earth transiting a nearby low-mass star

    David Charbonneau;Zachory Kaczmarczyk Berta;Jonathan M Irwin;Christopher J. Burke

  • S B 9 : The ninth catalogue of spectroscopic binary orbits

    Dimitri Pourbaix;Dimitri Pourbaix;Andrei A. Tokovinin;Alen H. Batten;Francis C. Fekel

  • The CORALIE survey for southern extra-solar planets VII. Two short-period Saturnian companions to HD108147 and HD168746

    F. Pepe;M. Mayor;F. Galland;D. Naef

  • The HARPS search for southern extra-solar planets - XVII. Super-Earth and Neptune-mass planets in multiple planet systems HD 47 186 and HD 181 433

    François Bouchy;M. Mayor;C. Lovis;S. Udry

  • The HARPS search for southern extra-solar planets - XXXI. The M-dwarf sample

    Xavier Bonfils;X. Delfosse;Stéphane Udry;T. Forveille

  • Spectroscopic parameters for 451 stars in the HARPS GTO planet search program - Stellar [Fe/H] and the frequency of exo-Neptunes

    S Sousa;N C Santos;M Mayor;S Udry

  • ELODIE metallicity-biased search for transiting Hot Jupiters. II. A very hot Jupiter transiting the bright K star HD 189733

    F. Bouchy;S. Udry;M. Mayor;C. Moutou

  • Harps-N: the new planet hunter at TNG

    Rosario Cosentino;Christophe Lovis;Francesco Pepe;Andrew Collier Cameron

  • An Earth-mass planet orbiting α Centauri B

    Xavier Dumusque;Francesco Alfonso Pepe;Christophe Lovis;Damien Segransan

  • SPHERE: A ‘Planet Finder’ Instrument for the VLT

    Jean-Luc Beuzit;Markus Feldt;Kjetil Dohlen;David Mouillet

  • Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data: Revisiting the concept of superclusters

    Benoît Famaey;Alain Jorissen;Xavier Luri;Michel Mayor

  • WASP-12b: The hottest transiting planet yet discovered

    L. Hebb;A. Collier-Cameron;B. Loeillet;D. Pollacco

  • The HARPS search for southern extra-solar planets: XVIII. An Earth-mass planet in the GJ 581 planetary system

    Michel Mayor;X. Bonfils;X. Bonfils;T. Forveille;X. Delfosse

  • Spin-orbit angle measurements for six southern transiting planets New insights into the dynamical origins of hot Jupiters

    A. H. M. J. Triaud;A. Collier Cameron;D. Queloz;D. R. Anderson

  • A giant comet-like cloud of hydrogen escaping the warm Neptune-mass exoplanet GJ 436b

    David Ehrenreich;Vincent Bourrier;Peter J. Wheatley;Alain Lecavelier des Etangs

Frequent Co-Authors

Michel Mayor
Michel Mayor University of Geneva
Nuno C. Santos
Nuno C. Santos University of Porto
Damien Ségransan
Damien Ségransan University of Geneva
Didier Queloz
Didier Queloz University of Cambridge
Francesco Pepe
Francesco Pepe University of Geneva
Michaël Gillon
Michaël Gillon University of Liège
Guillaume Hébrard
Guillaume Hébrard Institut d'Astrophysique de Paris
David Ehrenreich
David Ehrenreich University of Geneva
Claire Moutou
Claire Moutou Centre national de la recherche scientifique, CNRS
Frederic Pont
Frederic Pont University of Exeter

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Best Scientists Citing Stéphane Udry

Trending Scientists

Recently Published Articles