FK
F. Kiefer
astro-ph.EPastro-ph.SRastro-ph.IMhep-thastro-ph.GAastro-ph.HE
On Valency
published · living versionsW_tgh2tyvm·v1 · currentpublished
Searching for substellar companion candidates with Gaia. V. M dwarfs within 15 pc studied with absolute astrometry, radial velocities, and direct imaging
with F. Destriez, A. -M. Lagrange, G. Hébrard, P. Rubini +8
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W_ua4gdqwr·v1published
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Preprints & journals
107 papers in the corpus · 2007–2026Searching for substellar companion candidates with Gaia. V. M dwarfs within 15 pc studied with absolute astrometry, radial velocities, and direct imaging2610.31006v1 · F. Destriez, A.-M. Lagrange, G. H'ebrard et al.2026 · 0 citationsarXivon Valency
A fifth companion in the HR 8799 system revealed by Gaia2609.20996v1 · A.-M. Lagrange, K. Gozdziewski, F. Kiefer et al.2026 · 0 citationsarXiv
Evidence for a giant companion orbiting Tabby's star2607.20643v1 · Cristina Madurga-Favieres, P. A. Str\om, Thomas G. Wilson et al.2026 · 0 citationsarXiv
Revisiting TOI-4438 and TOI-442 planetary systems with new observations from SPIRou and TESS2607.13333v1 · J. Serrano Bell, G. H'ebrard, E. Martioli et al.2026 · 0 citationsarXiv
Latitudinal chemical and cloud variations in the atmosphere of a brown dwarf2607.11642v1 · Benjamin Charnay, Sam de Regt, Matthieu Ravet et al.2026 · 0 citationsarXiv
Next-generation Exo-REM atmospheric models: application to VHS 1256 b to emulate patchy clouds2605.29070v1 · Alice Radcliffe, Benjamin Charnay, Anne-Marie Lagrange et al.2026 · 1 citationA&A, 711, A257 (2026)
The SPHERE infrared survey for exoplanets (SHINE) V. Full sample characterization2605.27247v2 · V. Squicciarini, S. Desidera, G. Chauvin et al.2026 · 0 citationsarXiv
Search for exocomets transits in Kepler light curves: Ten new transits identified2510.14687v1 · Pierre Dumond, Alain Lecavelier des Etangs, Flavien Kiefer et al.2025 · 3 citationsA&A 704, A191 (2025)
Multi-modal atmospheric characterization of Pictoris b: Adding high-resolution continuum spectra from GRAVITY2509.25338v2 · M. Ravet, M. Bonnefoy, G. Chauvin et al.2025 · 12 citationsA&A 704, A325 (2025)
Chromaticity of stellar activity in radial velocities : Anti-correlated families of lines on the M dwarf EV Lac with SPIRou and SOPHIE2509.17911v1 · Pierre Larue, Xavier Delfosse, Andres Carmona et al.2025 · 6 citationsA&A, 701, A216 (2025)
New Orbital Constraints for YSES 1 b and HR 2562 B from High-Precision Astrometry and Planetary Radial Velocities2509.14321v1 · Jonathan Roberts, William Thompson, Jason J. Wang et al.2025 · 3 citationsarXiv
GPI+SPHERE detection of a 6.1 circumbinary planet around HD 1438112509.06009v2 · Vito Squicciarini, Johan Mazoyer, Christian Wilkinson et al.2025 · 5 citationsA&A 702, L10 (2025)
Evidence for a sub-Jovian planet in the young TWA 7 disk.40562924 · Lagrange, A-M, Wilkinson, C, Mâlin, M et al.2025 · 40 citationsNature. 2025;642(8069):905-908
Upper limits on CN from exocomets transiting Pictoris2504.14299v1 · M. A. Kenworthy, E. de Mooij, A. Brandeker et al.2025 · 0 citationsarXiv
A Swarm of WASP Planets: Nine giant planets identified by the WASP survey2504.08091v1 · Nicole Schanche, Guillaume H'ebrard, Keivan G. Stassun et al.2025 · 2 citationsarXiv
Characterizing planetary systems with SPIRou: Detection of a sub-Neptune in a 6-day period orbit around the M dwarf Gl 4102504.03572v2 · A. Carmona, X. Delfosse, M. Ould-Elhkim et al.2025 · 4 citationsA&A 700, A222 (2025)
Abundances of refractory ions in Beta Pictoris exocomets2503.17346v1 · T. Vrignaud, A. Lecavelier des Etangs, P. A. Strom et al.2025 · 7 citationsA&A 697, A21 (2025)
Characterization of AF Lep b at high spectral resolution with VLT/HiRISE2502.19558v1 · A. Denis, A. Vigan, J. Costes et al.2025 · 14 citationsarXiv
Evidence for a sub-jovian planet in the young TWA7 disk2502.15081v1 · A.-M. Lagrange, C. Wilkinson, M. Malin et al.2025 · 0 citationsarXiv
Searching for substellar companion candidates with Gaia. III. Search for companions to members of young associations2501.10488v1 · A.-M. Lagrange, F. Kiefer, P. Rubini et al.2025 · 0 citationsarXiv
TOI-5108 b and TOI 5786 b: Two transiting sub-Saturns detected and characterized with TESS, MaHPS and SOPHIE2501.03803v1 · Luis Thomas, Guillaume H'ebrard, Hanna Kellermann et al.2025 · 8 citationsA&A 694, A143 (2025)
Characterization of seven transiting systems including four warm Jupiters from SOPHIE and TESS2412.08527v1 · N. Heidari, G. H'ebrard, E. Martioli et al.2024 · 12 citationsA&A 694, A36 (2025)
The COBREX archival survey: improved constraints on the occurrence rate of wide-orbit substellar companions. I. A uniform re-analysis of 400 stars from the GPIES survey2411.06157v1 · V. Squicciarini, J. Mazoyer, A.-M. Lagrange et al.2024 · 12 citationsA&A 693, A54 (2025)
Giant planets population around B stars from the first part of the BEAST survey2409.18793v1 · P. Delorme, A. Chomez, V. Squicciarini et al.2024 · 9 citationsA&A 692, A263 (2024)
Searching for substellar companion candidates with Gaia. I. Introducing the GaiaPMEX tool2409.16992v2 · Flavien Kiefer, Anne-Marie Lagrange, Pascal Rubini et al.2024 · 11 citationsA&A 702, A76 (2025)
Searching for substellar companion candidates with Gaia. II. A catalog of 9,698 planet candidate solar-type hosts2409.16993v2 · Flavien Kiefer, Anne-Marie Lagrange, Pascal Rubini et al.2024 · 5 citationsA&A 702, A77 (2025)
TOI-3568 b: a super-Neptune in the sub-Jovian desert2409.03704v1 · E. Martioli, R.P. Petrucci, E. Jofre et al.2024 · 5 citationsA&A 690, A312 (2024)
The PLATO Mission2406.05447v2 · Heike Rauer, Conny Aerts, Juan Cabrera et al.2024 · 13 citationsarXiv
Planet Hunters TESS V: a planetary system around a binary star, including a mini-Neptune in the habitable zone2404.18997v1 · Nora L. Eisner, Samuel K. Grunblatt, Oscar Barrag'an et al.2024 · 6 citationsPublished in AJ, 2024
ATMOSPHERIX: III- Estimating the C/O ratio and molecular dynamics at the limbs of WASP-76 b with SPIRou2403.19434v1 · Thea Hood, Florian Debras, Claire Moutou et al.2024 · 7 citationsA&A 687, A119 (2024)
Curves of growth for transiting exocomets: Application to Fe II lines in the Beta Pictoris system2402.10169v1 · T. Vrignaud, A. Lecavelier des Etangs, F. Kiefer et al.2024 · 11 citationsarXiv
A new treatment of telluric and stellar features for medium resolution spectroscopy and molecular mapping. Application to the abundance determination on Beta Pic b2402.08311v1 · F. Kiefer, M. Bonnefoy, B. Charnay et al.2024 · 0 citationsarXiv
TOI-1199 b and TOI-1273 b: Two new transiting hot Saturns detected and characterized with SOPHIE and TESS2402.07861v2 · J. Serrano Bell, R. F. D'iaz, G. H'ebrard et al.2024 · 4 citationsA&A, 684, A6 (2024)
The EBLM Project XI. Mass, radius and effective temperature measurements for 23 M-dwarf companions to solar-type stars observed with CHEOPS2312.11339v1 · M. I. Swayne, P. F. L. Maxted, A. H. M. J. Triaud et al.2023 · 24 citationsarXiv
The SOPHIE search for northern extrasolar planets-XIX. A system including a cold sub-Neptune potentially transiting a V = 6.5 star HD889862311.13513v1 · N. Heidari, I. Boisse, N. C. Hara et al.2023 · 20 citationsA&A 681, A55 (2024)
Giant Outer Transiting Exoplanet Mass (GOT 'EM) Survey: III. Recovery and Confirmation of a Temperate, Mildly Eccentric, Single-Transit Jupiter Orbiting TOI-20102311.10232v1 · Christopher R. Mann, Paul A. Dalba, David Lafreniere et al.2023 · 13 citationsAJ, 166, 239 (2023)
TOI-1736 and TOI-2141: two systems including sub-Neptunes around solar analogs revealed by TESS and SOPHIE2311.07011v2 · E. Martioli, G. H'ebrard, L. de Almeida et al.2023 · 10 citationsA&A 680, A84 (2023)
Planetary system architectures with low-mass inner planets: Direct imaging exploration of mature systems beyond 1 au2310.06035v1 · Celia Desgrange, Julien Milli, Gael Chauvin et al.2023 · 0 citationsA&A 680, A64 (2023)
ATMOSPHERIX: I- An open source high resolution transmission spectroscopy pipeline for exoplanets atmospheres with SPIRou2308.14510v2 · B. Klein, F. Debras, J.-F. Donati et al.2023 · 17 citationsarXiv
Multi techniques approach to identify and/or constrain radial velocity sub-stellar companions2308.05417v1 · F. Philipot, A.-M. Lagrange, F. Kiefer et al.2023 · 13 citationsA&A 678, A107 (2023)
TOI-4860 b, a short-period giant planet transiting an M3.5 dwarf2308.01454v2 · J.M. Almenara, X. Bonfils, E. M. Bryant et al.2023 · 16 citationsarXiv
Homogeneous search for helium in the atmosphere of 11 gas giant exoplanets with SPIRou2307.05580v1 · R. Allart, P.-B. Lem'ee-Joliecoeur, A. Y. Jaziri et al.2023 · 40 citationsA&A 677, A164 (2023)
Two Warm Neptunes transiting HIP 9618 revealed by TESS & Cheops2306.04450v1 · Hugh P. Osborn, Grzegorz Nowak, Guillaume H'ebrard et al.2023 · 23 citationsMNRAS, Vol. 523, 2023, issue 2, pp 3069-3089
CHEOPS's hunt for exocomets: photometric observations of 5 Vul2305.07578v1 · Isabel Rebollido, Sebastian Zieba, Daniela Iglesias et al.2023 · 7 citationsarXiv
On the radial distribution of giant exoplanets at Solar System scales2305.00047v1 · A.-M. Lagrange, F. Philipot, P. Rubini et al.2023 · 32 citationsA&A 677, A71 (2023)
Near-IR and optical radial velocities of the active M dwarf star Gl 388 (AD Leo) with SPIRou at CFHT and SOPHIE at OHP: A 2.23 day rotation period and no evidence for a corotating planet2303.16712v4 · A. Carmona, X. Delfosse, S. Bellotti (2 et al.2023 · 36 citationsA&A 674, A110 (2023)
A High-Eccentricity Warm Jupiter Orbiting TOI-41272303.14570v1 · Arvind F. Gupta, Jonathan M. Jackson, Guillaume Hebrard et al.2023 · 13 citationsarXiv
Glancing through the debris disk: Photometric analysis of DE Boo with CHEOPS2302.02710v1 · 'A. Boldog, Gy. M. Szab'o, L. Kriskovics et al.2023 · 2 citationsA&A 671, A127 (2023)
Optical and near-infrared stellar activity characterization of the early M dwarf Gl~205 with SOPHIE and SPIRou2301.10614v2 · P. Cortes-Zuleta, I. Boisse, B. Klein et al.2023 · 23 citationsA&A 673, A14 (2023)
Hint of an exocomet transit in the CHEOPS lightcurve of HD 1725552301.07418v1 · F. Kiefer, V. Van Grootel, A. Lecavelier des Etangs et al.2023 · 19 citationsA&A 671, A25 (2023)
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