List of works - Xavier Delfosse

The SOPHIE search for northern extrasolar planets. XV. A warm Neptune around the M dwarf Gl 378

scientific article

LP 349-25: A new tight M8V binary

scientific article published in January 2005

Atmospheric characterization of Proxima b by coupling the SPHERE high-contrast imager to the ESPRESSO spectrograph

scientific article published in Astronomy and Astrophysics

TOI-674b: An oasis in the desert of exo-Neptunes transiting a nearby M dwarf

scientific article published in September 2021

The CARMENES search for exoplanets around M dwarfs. A Neptune-mass planet traversing the habitable zone around HD 180617

scientific article

Line-by-line velocity measurements, an outlier-resistant method for precision velocimetry

Accurate masses of low mass stars GJ 765.2AB (0.83 M_{sun}_ + 0.76 M_{sun}_)

scientific article published in January 2007

The SOPHIE search for northern extrasolar planets. XIV. A temperate (Teq ~ 300 K) super-earth around the nearby star Gliese 411

scientific article

SPIRou input catalogue: activity, rotation and magnetic field of cool dwarfs

scholarly article

GJ 367b: A dense, ultrashort-period sub-Earth planet transiting a nearby red dwarf star

scientific article published on 3 December 2021

Near-InfraRed Planet Searcher to Join HARPS on the ESO 3.6-metre Telescope

scientific article

Evidence of early disk-locking among low-mass members of the Orion Nebula Cluster(Corrigendum)

scientific article published in Astronomy and Astrophysics

The HARPS search for southern extra-solar planets XXXII. Only 4 planets in the Gl~581 system

Masses and compositions of three small planets orbiting the nearby M dwarf L231-32 (TOI-270) and the M dwarf radius valley

scientific article published on 24 August 2021

Detecting planets around active stars: impact of magnetic fields on radial velocities and line bisectors

scholarly article

NIRPS joining HARPS at ESO 3.6 m

scientific article published on 29 July 2025

Accompanying optical interferometry worldwide: the JMMC tools and services

Radial velocity homogeneous analysis of M dwarfs observed with HARPS: I. Exoplanet detection and candidates

scientific article published in September 2024

SPIRou reveals unusually strong magnetic fields of slowly rotating M dwarfs

scientific article published in January 2024

Atmospheric composition and circulation of the ultra-hot Jupiter WASP-121b with joint NIRPS, HARPS and CRIRES+ transit spectroscopy

scientific article published in November 2025

Accurate masses of very low mass stars. IV. Improved mass-luminosity relations

scientific article published in January 2000

Misaligned spin-orbit in the XO-3 planetary system?

Prized results from HARPS

Exploring the magnetic topologies of cool stars

Evidence of early disk-locking among low-mass members of the Orion Nebula Cluster

scientific article published in Astronomy and Astrophysics

Star-disk interaction in the T Tauri star V2129 Ophiuchi: An evolving accretion-ejection structure

scientific article

Three new massive companions in the planet-brown dwarf boundary detected with SOPHIE

Quantifying thermal water dissociation in the dayside photosphere of WASP-121 b using NIRPS

scientific article published in September 2025

Radial velocity homogeneous analysis of M dwarfs observed with HARPS

scientific article published in August 2025

Stellar activity of planetary host star HD 189733

The closest extrasolar planet. A giant planet around the M4 dwarf Gl876

scientific article published in January 1998

Hydride ion continuum hides absorption signatures in the NIRPS near-infrared transmission spectrum of the ultra-hot gas giant WASP-189b

scientific article published on 29 July 2025

Blind search for activity-sensitive lines in the near-infrared using HARPS and NIRPS observations of Proxima and Gl 581

scientific article published in August 2025

New Mass and Radius Constraints on the LHS 1140 Planets -- LHS 1140 b is Either a Temperate Mini-Neptune or a Water World

scientific article published in January 2024

SPIRou @ CFHT: data reduction software and simulation tools

TOI-1199 b and TOI-1273 b: Two new transiting hot Saturns detected and characterized with SOPHIE and TESS

scientific article

A hot mini-Neptune and a temperate, highly eccentric sub-Saturn around the bright K-dwarf TOI-2134

scientific article

TOI-1736 and TOI-2141: two systems including sub-Neptunes around solar analogs revealed by TESS and SOPHIE

scientific article

A precise physical orbit for the m-dwarf binary Gliese 268

scientific article published in the Astrophysical Journal

The JMMC stellar diameters catalog v2 (JSDC): a new release based on SearchCal improvements

scientific article

New neighbours. I. 13 new companions to nearby M dwarfs

scholarly article

Accurate masses of very low mass stars. I. Gl 570BC (0.6M_{sun}_+0.4M_{sun}_)

scientific article

NIRPS and TESS reveal a peculiar system around the M dwarf TOI-756: A transiting sub-Neptune and a cold eccentric giant

scientific article published in October 2025

Accurate masses of very low mass stars. II. The very low mass triple system Gl 866

scholarly article

List of works by Xavier Delfosse

The SOPHIE search for northern extrasolar planets. XV. A warm Neptune around the M dwarf Gl 378

LP 349-25: A new tight M8V binary

Atmospheric characterization of Proxima b by coupling the SPHERE high-contrast imager to the ESPRESSO spectrograph

TOI-674b: An oasis in the desert of exo-Neptunes transiting a nearby M dwarf

The CARMENES search for exoplanets around M dwarfs. A Neptune-mass planet traversing the habitable zone around HD 180617

Line-by-line velocity measurements, an outlier-resistant method for precision velocimetry

Accurate masses of low mass stars GJ 765.2AB (0.83 M_{sun}_ + 0.76 M_{sun}_)

The SOPHIE search for northern extrasolar planets. XIV. A temperate (Teq ~ 300 K) super-earth around the nearby star Gliese 411

SPIRou input catalogue: activity, rotation and magnetic field of cool dwarfs

GJ 367b: A dense, ultrashort-period sub-Earth planet transiting a nearby red dwarf star

Near-InfraRed Planet Searcher to Join HARPS on the ESO 3.6-metre Telescope

Evidence of early disk-locking among low-mass members of the Orion Nebula Cluster(Corrigendum)

The HARPS search for southern extra-solar planets XXXII. Only 4 planets in the Gl~581 system

Masses and compositions of three small planets orbiting the nearby M dwarf L231-32 (TOI-270) and the M dwarf radius valley

Detecting planets around active stars: impact of magnetic fields on radial velocities and line bisectors

NIRPS joining HARPS at ESO 3.6 m

Accompanying optical interferometry worldwide: the JMMC tools and services

Radial velocity homogeneous analysis of M dwarfs observed with HARPS: I. Exoplanet detection and candidates

SPIRou reveals unusually strong magnetic fields of slowly rotating M dwarfs

Atmospheric composition and circulation of the ultra-hot Jupiter WASP-121b with joint NIRPS, HARPS and CRIRES+ transit spectroscopy

Accurate masses of very low mass stars. IV. Improved mass-luminosity relations

Misaligned spin-orbit in the XO-3 planetary system?

Prized results from HARPS

Exploring the magnetic topologies of cool stars

Evidence of early disk-locking among low-mass members of the Orion Nebula Cluster

Star-disk interaction in the T Tauri star V2129 Ophiuchi: An evolving accretion-ejection structure

Three new massive companions in the planet-brown dwarf boundary detected with SOPHIE

Quantifying thermal water dissociation in the dayside photosphere of WASP-121 b using NIRPS

Radial velocity homogeneous analysis of M dwarfs observed with HARPS

Stellar activity of planetary host star HD 189733

The closest extrasolar planet. A giant planet around the M4 dwarf Gl876

Hydride ion continuum hides absorption signatures in the NIRPS near-infrared transmission spectrum of the ultra-hot gas giant WASP-189b

Blind search for activity-sensitive lines in the near-infrared using HARPS and NIRPS observations of Proxima and Gl 581

New Mass and Radius Constraints on the LHS 1140 Planets -- LHS 1140 b is Either a Temperate Mini-Neptune or a Water World

SPIRou @ CFHT: data reduction software and simulation tools

TOI-1199 b and TOI-1273 b: Two new transiting hot Saturns detected and characterized with SOPHIE and TESS

A hot mini-Neptune and a temperate, highly eccentric sub-Saturn around the bright K-dwarf TOI-2134

TOI-1736 and TOI-2141: two systems including sub-Neptunes around solar analogs revealed by TESS and SOPHIE

A precise physical orbit for the m-dwarf binary Gliese 268

The JMMC stellar diameters catalog v2 (JSDC): a new release based on SearchCal improvements

New neighbours. I. 13 new companions to nearby M dwarfs

Accurate masses of very low mass stars. I. Gl 570BC (0.6M_{sun}_+0.4M_{sun}_)

NIRPS and TESS reveal a peculiar system around the M dwarf TOI-756: A transiting sub-Neptune and a cold eccentric giant

Accurate masses of very low mass stars. II. The very low mass triple system Gl 866

Large-scale magnetic topologies of M dwarfs