X. Delfosse

20.9k citations

173 papers · 8.1k · 2 hit papers · h-index 51

Impact in

Instrumentation top 0.2%
- Astronomy and Astrophysical Research
Astronomy and Astrophysics top 0.2%
- Stellar, planetary, and galactic studies
- Astrophysics and Star Formation Studies
- Astro and Planetary Science
- Gamma-ray bursts and supernovae
- Galaxies: Formation, Evolution, Phenomena
- Solar and Space Plasma Dynamics
- Astrophysical Phenomena and Observations

Papers in

Astronomy and Astrophysics 167
- Stellar, planetary, and galactic studies 156
- Astrophysics and Star Formation Studies 87
- Astro and Planetary Science 75
- Solar and Space Plasma Dynamics 9
- Gamma-ray bursts and supernovae 8
Instrumentation 90
- Astronomy and Astrophysical Research 90

Co-authors: T. Forveille (109 shared papers)S. Udry (62 shared papers)Xavier Bonfils (59 shared papers)C. Lovis (42 shared papers)F. Pepe (38 shared papers)N.C. Santos (40 shared papers)Michel Mayor (45 shared papers)D. Queloz (30 shared papers)
Journals: Astronomy and Astrophysics (73 papers)Monthly Notices of the Royal Astronomical Society (19 papers)The Astronomical Journal (10 papers)The Astrophysical Journal (6 papers)Nature (3 papers)
Partner nations: France United States Switzerland

In The Last Decade

X. Delfosse

168 papers receiving 7.7k citations

X. Delfosse's Hit Papers

align trajectories log scale

A giant comet-like cloud of hydrogen escaping the warm Neptune-mass exoplanet GJ 436b 2015 · 265 citations

What are hit papers?

Paper score: A paper's citations measured against the top-1% bar of its own field and year: the square root of citations ÷ bar, so 1 means right at the bar and 2 means four times its citations. The bar blends the citation counts that enter the top 1% of the paper's subfields in its year (weighted 89.5%), of those subfields over all years (0.5%) and of its year across all fields (10%); a subfield and year with fewer than 400 papers takes its year's bar. Papers from 2026 are not scored yet: in an unfinished year, when a paper appeared matters more than how it is cited.

Hit paper: A paper cited at least 1.5× the top-1% bar of its field and year: a paper score of at least √1.5.

2015 Nature
2009 Nature

Peers

Countries citing papers authored by X. Delfosse

Since Specialization

Citations

This map shows the geographic impact of X. Delfosse's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by X. Delfosse with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites X. Delfosse more than expected).

Fields of papers citing papers by X. Delfosse

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by X. Delfosse. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by X. Delfosse. The network helps show where X. Delfosse may publish in the future.

Co-authors

The 25 scholars most cited alongside X. Delfosse, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with X. Delfosse Line = papers co-authored together X. Delfosse links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 173 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	A super-Earth transiting a nearby low-mass star Nature ·David Charbonneau, Zachory K. Berta-Thompson, Jonathan M Irwin, Christopher John Burke, P. Nutzman, L. Buchhave, C. Lovis, Xavier Bonfils, D.W. Latham, S. Udry, Ruth A Murray-Clay, Matthew J. Holman, Emilio E. Falco, J.N. Winn, D. Queloz, F. Pepe, Michel Mayor, X. Delfosse, T. Forveille Hit paper breakdown →	2009	432
2	THE CANADA-FRANCE HIGH-zQUASAR SURVEY: NINE NEW QUASARS AND THE LUMINOSITY FUNCTION AT REDSHIFT 6 The Astronomical Journal ·Chris Willot, P. Delorme, C. Reylé, Loïc Albert, Jacqueline Bergeron, David Crampton, X. Delfosse, T. Forveille, John B. Hutchings, R. J. McLure, A. Omont, David J. Schade	2010	318
3	Spectroscopic Classification of Late-M and L Field Dwarfs The Astronomical Journal ·E.L. Martin, X. Delfosse, Gibor Basri, B. Goldman, T. Forveille, M. R. Zapatero Osorio	1999	299
4	The HARPS search for southern extra-solar planets Astronomy and Astrophysics ·S. Udry, Xavier Bonfils, X. Delfosse, T. Forveille, Michel Mayor, C. Perrier, F. Bouchy, C. Lovis, F. Pepe, D. Queloz, J.‐L. Bertaux	2007	293
5	Large-scale magnetic topologies of late M dwarfs★ Monthly Notices of the Royal Astronomical Society ·J. Morin, J.-F. Donati, P. Petit, X. Delfosse, T. Forveille, M. M. Jardine	2010	289
6	A giant comet-like cloud of hydrogen escaping the warm Neptune-mass exoplanet GJ 436b Nature ·D. Ehrenreich, V. Bourrier, Peter J Wheatley, A. Lecavelier des Etangs, Guillaume Hébrard, S. Udry, Xavier Bonfils, X. Delfosse, Jean-Michel Désert, David K. Sing, Alfred Vidal‐Madjar Hit paper breakdown →	2015	265
7	The HARPS search for southern extra-solar planets XXXI. The M-dwarf sample Archive ouverte UNIGE (University of Geneva) ·Xavier Bonfils, X. Delfosse, S. Udry, T. Forveille, Michel Mayor, C. Perrier, F. Bouchy, M. Gillon, C. Lovis, F. Pepe, D. Queloz, N.C. Santos, D. Ségransan, (unknown)	2011	250
8	Large-scale magnetic topologies of early M dwarfs ★ Monthly Notices of the Royal Astronomical Society ·J.-F. Donati, J. Morin, P. Petit, X. Delfosse, T. Forveille, M. Aurière, R. Cabanac, B. Dintrans, R. Farès, T. Gastine, M. M. Jardine, F. Lignières, F. Paletou, Robinson Ramírez‐Vélez, S. Théado	2008	225
9	The HARPS search for southern extra-solar planets Astronomy and Astrophysics ·M. Mayor, Xavier Bonfils, T. Forveille, X. Delfosse, S. Udry, J.‐L. Bertaux, H. Beust, F. Bouchy, C. Lovis, F. Pepe, C. Perrier, D. Queloz, N.C. Santos	2009	214
10	Multiplicity of Nearby Free-floating Ultracool Dwarfs: AHubble Space TelescopeWFPC2 Search for Companions The Astronomical Journal ·H. Bouy, W. Brandner, Eduardo L. Martn, X. Delfosse, France C. Allard, Gibor Basri	2003	196
11	Four Quasars above Redshift 6 Discovered by the Canada-France High-zQuasar Survey The Astronomical Journal ·Chris Willot, P. Delorme, A. Omont, Jacqueline Bergeron, X. Delfosse, T. Forveille, Loïc Albert, C. Reylé, Gary J. Hill, Michael Gully-Santiago, Phillip Vinten, David Crampton, J. B. Hutchings, David J. Schade, Luc Simard, Marcin Sawicki, A. Beelen, P. Cox	2007	160
12	The HARPS survey for southern extra-solar planets Astronomy and Astrophysics ·N.C. Santos, F. Bouchy, Michel Mayor, F. Pepe, D. Queloz, S. Udry, C. Lovis, Michael Bazot, W. Benz, J.‐L. Bertaux, G. Lo Curto, X. Delfosse, C. Mordasini, D. Naef, J. P. Sivan, Sylvie D. Vauclair	2004	147
13	The HARPS search for southern extra-solar planets Astronomy and Astrophysics ·Xavier Bonfils, Michel Mayor, X. Delfosse, T. Forveille, M. Gillon, C. Perrier, S. Udry, F. Bouchy, C. Lovis, F. Pepe, D. Queloz, N.C. Santos, J.‐L. Bertaux	2007	143
14	The HARPS search for southern extra-solar planets Astronomy and Astrophysics ·Xavier Bonfils, T. Forveille, X. Delfosse, S. Udry, Michel Mayor, C. Perrier, F. Bouchy, F. Pepe, D. Queloz, J.‐L. Bertaux	2005	142
15	An Effective Temperature Scale for Late‐M and L Dwarfs, from Resonance Absorption Lines of Cs i and Rb i The Astrophysical Journal ·Gibor Basri, Subhanjoy Mohanty, France C. Allard, Peter H. Hauschildt, X. Delfosse, E.L. Martin, T. Forveille, B. Goldman	2000	138
16	The Large-Scale Axisymmetric Magnetic Topology of a Very-Low-Mass Fully Convective Star Science ·J.-F. Donati, T. Forveille, Andrew Collier Cameron, John Robert Barnes, X. Delfosse, M. M. Jardine, Jeff A. Valenti	2006	136
17	Hint of a transiting extended atmosphere on 55 Cancri b Astronomy and Astrophysics ·D. Ehrenreich, V. Bourrier, Xavier Bonfils, A. Lecavelier des Etangs, Guillaume Hébrard, David K. Sing, Peter J Wheatley, Alfred Vidal‐Madjar, X. Delfosse, S. Udry, T. Forveille, C. Moutou	2012	107
18	The HARPS survey for southern extra-solar planets II. A 14 Earth-masses exoplanet around mu Arae CERN Document Server (European Organization for Nuclear Research) ·N.C. Santos, F. Bouchy, Michel Mayor, F. Pepe, D. Queloz, S. Udry, C. Lovis, Michael Bazot, W. Benz, J.‐L. Bertaux, G. Lo Curto, X. Delfosse, C. Mordasini, D. Naef, J. P. Sivan, Sylvie D. Vauclair	2004	107
19	Mass-radius relation of low and very low-mass stars revisited with the VLTI Astronomy and Astrophysics ·B. -O. Demory, D. Ségransan, T. Forveille, D. Queloz, J. L. Beuzit, X. Delfosse, E. Di Folco, P. Kervella, J.-B. Le Bouquin, C. Perrier, M. Benisty, G. Duvert, Karl Heinrich Hofmann, B. López, R. Petrov	2009	104
20	A Mass for the Extrasolar Planet Gliese 876[CLC]b[/CLC] Determined from [ITAL]Hubble Space Telescope[/ITAL] Fine Guidance Sensor 3 Astrometry and High-Precision Radial Velocities The Astrophysical Journal ·George F. Benedict, Barbara E. McArthur, T. Forveille, X. Delfosse, E. Nelan, R. Paul Butler, William J. Spiesman, Geoffrey W. Marcy, B. Goldman, C. Perrier, W. H. Jefferys, Michel Mayor	2002	102

About X. Delfosse

X. Delfosse is a scholar working on Astronomy and Astrophysics, Instrumentation, Computational Mechanics, Atomic and Molecular Physics, and Optics and Spectroscopy, having authored 173 papers that have together received 8.1k indexed citations. Recurring topics across this work include Stellar, planetary, and galactic studies (156 papers), Astronomy and Astrophysical Research (90 papers), Astrophysics and Star Formation Studies (87 papers), Astro and Planetary Science (75 papers), Astronomical Observations and Instrumentation (16 papers), Adaptive optics and wavefront sensing (14 papers), Solar and Space Plasma Dynamics (9 papers) and Gamma-ray bursts and supernovae (8 papers). The work is most often cited by research in Instrumentation (2.9k citations), Astronomy and Astrophysics (7.8k citations), Nuclear and High Energy Physics (289 citations), Atmospheric Science (362 citations) and Spectroscopy (338 citations). X. Delfosse has collaborated with scholars based in France, United States and Switzerland. Frequent co-authors include T. Forveille, S. Udry, Xavier Bonfils, C. Lovis, F. Pepe, N.C. Santos, Michel Mayor, D. Queloz, F. Bouchy and C. Perrier. Their work appears in journals such as Astronomy and Astrophysics, Monthly Notices of the Royal Astronomical Society, The Astronomical Journal, The Astrophysical Journal and Nature.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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X. Delfosse

X. Delfosse's Hit Papers

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All Works

About X. Delfosse

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