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D. Ségransan

University of Geneva · CH
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Area of research
Astronomy and Astrophysics · Instrumentation
Research interest
Research interests include Stellar, planetary, and galactic studies, Astronomy and Astrophysical Research, Astro and Planetary Science, and Astrophysics and Star Formation Studies.
h-index
88
citations
31,731
works
732
NIH funding
primary concept
email

Recent publications

Diving into the planetary system of Proxima with NIRPS
Astronomy and Astrophysics 2025cited by 9position: middledoi
NIRPS and TESS reveal a peculiar system around the M dwarf TOI-756: A transiting sub-Neptune and a cold eccentric giant
Astronomy and Astrophysics 2025cited by 5position: middledoi
NIRPS detection of delayed atmospheric escape from the warm and misaligned Saturn-mass exoplanet WASP-69 b
Astronomy and Astrophysics 2025cited by 5position: middledoi
The EBLM Project– XI. Mass, radius, and effective temperature measurements for 23 M-dwarf companions to solar-type stars observed with <i>CHEOPS</i>
Monthly Notices of the Royal Astronomical Society 2024cited by 21position: middledoi
Resonant sub-Neptunes are puffier
Astronomy and Astrophysics 2024cited by 19position: lastdoi
Unveiling the internal structure and formation history of the three planets transiting HIP 29442 (TOI-469) with CHEOPS
Astronomy and Astrophysics 2024cited by 18position: middledoi
The geometric albedo of the hot Jupiter HD 189733b measured with CHEOPS
Astronomy and Astrophysics 2023cited by 31position: middledoi
TOI-1695 b: A Water World Orbiting an Early-M Dwarf in the Planet Radius Valley
The Astronomical Journal 2023cited by 26position: middledoi
TOI-5678b: A 48-day transiting Neptune-mass planet characterized with CHEOPS and HARPS
Astronomy and Astrophysics 2023cited by 23position: middledoi
Investigating the visible phase-curve variability of 55 Cnc e
Astronomy and Astrophysics 2023cited by 22position: middledoi
Masses, revised radii, and a third planet candidate in the ‘Inverted’ planetary system around TOI-1266
Monthly Notices of the Royal Astronomical Society 2023cited by 10position: middledoi
The young HD 73583 (TOI-560) planetary system: two 10-M⊕ mini-Neptunes transiting a 500-Myr-old, bright, and active K dwarf
Monthly Notices of the Royal Astronomical Society 2022cited by 50position: middledoi
CHEOPS geometric albedo of the hot Jupiter HD 209458 b
Astronomy and Astrophysics 2022cited by 48position: middledoi
Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS)
Astronomy and Astrophysics 2022cited by 27position: middledoi
The stable climate of KELT-9b
Astronomy and Astrophysics 2022cited by 25position: middledoi
Phase curve and geometric albedo of WASP-43b measured with CHEOPS, TESS, and HST WFC3/UVIS
Astronomy and Astrophysics 2022cited by 25position: middledoi
Transit timing variations of AU Microscopii b and c
Astronomy and Astrophysics 2022cited by 21position: middledoi
55 Cancri e’s occultation captured with CHEOPS
Astronomy and Astrophysics 2022cited by 21position: middledoi
Separating planetary reflex Doppler shifts from stellar variability in the wavelength domain
Monthly Notices of the Royal Astronomical Society 2021cited by 91position: middledoi
GJ 367b: A dense, ultrashort-period sub-Earth planet transiting a nearby red dwarf star
Science 2021cited by 68position: middledoi
CHEOPS observations of the HD 108236 planetary system: a fifth planet, improved ephemerides, and planetary radii
Repository of the Academy's Library (Library of the Hungarian Academy of Sciences) 2021cited by 63position: middle
CHEOPS precision phase curve of the Super-Earth 55 Cancri e
Astronomy and Astrophysics 2021cited by 52position: middledoi
Detection of the tidal deformation of WASP-103b at 3 <i>σ</i> with CHEOPS
Astronomy and Astrophysics 2021cited by 51position: middledoi
Populating the brown dwarf and stellar boundary: Five stars with transiting companions near the hydrogen-burning mass limit
Astronomy and Astrophysics 2021cited by 44position: middledoi
A search for transiting planets around hot subdwarfs
Astronomy and Astrophysics 2021cited by 32position: middledoi
The EBLM project – VIII. First results for M-dwarf mass, radius, and effective temperature measurements using <i>CHEOPS</i> light curves
Monthly Notices of the Royal Astronomical Society 2021cited by 27position: middledoi
ESPRESSO at VLT
Astronomy and Astrophysics 2020cited by 493position: middledoi
A Pair of TESS Planets Spanning the Radius Valley around the Nearby Mid-M Dwarf LTT 3780
The Astronomical Journal 2020cited by 96position: middledoi
Optical phase curve of the ultra-hot Jupiter WASP-121b
Astronomy and Astrophysics 2020cited by 77position: middledoi
TOI-1235 b: A Keystone Super-Earth for Testing Radius Valley Emergence Models around Early M Dwarfs
The Astronomical Journal 2020cited by 45position: middledoi

Grants

No grants ingested yet.

Frequent collaborators

F. Pepe · University of Geneva10 papers (2012–2022)S. Udry · University of Geneva10 papers (2012–2024)C. Lovis · University of Geneva8 papers (2012–2024)D. Queloz · University of Cambridge7 papers (2012–2016)A. Collier Cameron · Hebrew University of Jerusalem6 papers (2014–2017)M. Gillon · Planetary Science Institute6 papers (2014–2017)D. Pollacco · Queen's University4 papers (2014–2016)M. Mayor · University of Geneva4 papers (2012–2017)M. Lendl · University of Geneva4 papers (2014–2022) · 3 papers (2014–2016)A. H. M. J. Triaud · University of Birmingham3 papers (2014–2016) · 3 papers (2014–2016)D. R. Anderson · Georgia Institute of Technology3 papers (2014–2016)V. Bourrier · University of Geneva3 papers (2017–2024)D. Ehrenreich · University of Geneva3 papers (2014–2022) · 3 papers (2014–2017)A. M. S. Smith · University of Leicester3 papers (2014–2016)R. G. West · University of Leicester3 papers (2014–2016)P. F. L. Maxted · Friedrich-Alexander-Universität Erlangen-Nürnberg3 papers (2014–2016)B. Lavie · University of Geneva2 papers (2017–2022)
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