SS
Sérgio G. Sousa
astro-ph.EPastro-ph.SRastro-ph.IMastro-ph.GAastro-phastro-ph.COgr-qchep-phphysics.data-anphysics.space-ph
On Valency
published · living versionsW_v2snk925·v1 · currentpublished
A remnant planetary core in the hot-Neptune desert
with David J. Armstrong, Théo A. Lopez, Vardan Adibekyan, Richard A. Booth +89
1 version
W_kxbebmtq·v1published
W_ynufkxb8·v1published
W_hvzs5uh7·v1published
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W_q4evxp3r·v1published
W_cvj2bpgf·v1published
Preprints & journals
365 papers in the corpus · 2005–2026Two extremely irradiated volatile-rich sub-Neptunes with companions in the TOI-426 and TOI-1839 systems: Insights into arrival and survival near the lower edge of the Neptunian desert2609.05413v2 · A. Castro-Gonz'alez, O. Barrag'an, D. J. Armstrong et al.2026 · 0 citationsarXiv
CHEOPS photometry from 2024 reveals a reversal in the transit-timing variations of AU Mic c2608.01120v1 · Z. Garai, Gy. M. Szab'o, D. Gandolfi et al.2026 · 0 citationsarXiv
HRMOS: A High-Resolution Multi-Object Spectrograph for the VLT2607.04916v1 · Laura Magrini, Thomas Bensby, Sofia Randich et al.2026 · 0 citationsarXiv
The impact of interpolation in high-resolution spectroscopy -- The overlooked role of interpolation in radial velocity extraction2606.29569v1 · A. M. Silva, D. Doshi, K. Al Moulla et al.2026 · 0 citationsarXiv
gr8stars II : judgement day for spectroscopic parameter model systematics2606.06234v1 · Alix Violet Freckelton, Annelies Mortier, Megan Bedell et al.2026 · 0 citationsarXiv
TOI-3664 b, TOI-4034 b & TOI-6564 b: Three new hot Jupiters around stars approaching the terminal age main sequence2606.05295v2 · Matthew P. Battley, Marina Lafarga, Edward Gillen et al.2026 · 0 citationsBattley et al. (2026), MNRAS, 549, 4
Spin-Orbit Geometry of AU Mic b and c from Back-to-Back Transits Observed Contemporaneously with Magellan PFS, LCOGT, and CHEOPS2605.29946v2 · Zitao Lin, Gyula M. Szab'o, Krzysztof Sz. Zieli'nski et al.2026 · 0 citationsarXiv
The small transiting planet population revealed by ESPRESSO with extreme precision radial velocities2605.27002v1 · M. J. Hobson, B. Lavie, F. Bouchy et al.2026 · 0 citationsarXiv
Inferring stellar metallicity and elemental abundances from kinematic and spectroscopic data using machine learning -- Implications for exoplanet host stars2605.18131v1 · V. Adibekyan, B.M.T.B. Soares, S.G.Sousa et al.2026 · 0 citationsarXiv
An Ultra-Short Period Super-Earth and a Sub-Neptune Orbiting the K dwarf TOI-43112605.12324v1 · Yoshi Nike Emilia Eschen, Thomas G. Wilson, Andrew Collier Cameron et al.2026 · 0 citationsarXiv
The multi-planet system TOI-5624: Four transiting sub-Neptunes with an outer companion revealed by transit-timing variations2604.15035v2 · A. Bonfanti, D. Gandolfi, P. Leonardi et al.2026 · 1 citationA&A 709, A265 (2026)
Gas-depleted planet formation occurred in the four-planet system around the red dwarf LHS 1903.41678587 · Wilson, Thomas G, Simpson, Anna M, Collier Cameron, Andrew et al.2026 · 1 citationScience (New York, N.Y.). 2026;392(6795):eadl2348
Exploring the surface of HD 189733 via Doppler shadow analysis of planetary transits2603.13463v1 · E. C. Goncalves, E. Cristo, W. Dethier et al.2026 · 0 citationsA&A 709, A16 (2026)
TILARA: Template-Independent Line-by-line Algorithm for Radial velocity Analysis. I. Description of the code and application on a Sun-like star2603.05445v1 · C. San Nicolas Martinez, N. C. Santos, V. Adibekyan et al.2026 · 2 citationsA&A 708, A317 (2026)
An Adolescent and Near-Resonant Planetary System Near the End of Photoevaporation2603.02550v1 · Mu-Tian Wang, Fei Dai, Hui-Gen Liu et al.2026 · 1 citationarXiv
Revisiting the exoplanet radius valley with host stars from SWEET-Cat2601.12396v1 · Juma Kamulali, Vardan Adibekyan, Benard Nsamba et al.2026 · 0 citationsarXiv
ASTRA: A Python Package for Cross-Instrument Stellar and Telluric Template Construction2601.10439v1 · Andr'e M. Silva, J. P. Faria, N. C. Santos et al.2026 · 2 citationsJournal of Open Source Software, 11(117), 9413, 2026
HARPS-N, TESS, and CHEOPS discover a transiting sub-Neptune and two outer companions around the bright solar analogue HD 854262511.08473v1 · F. Lienhard, A. Mortier, A. Collier Cameron et al.2025 · 2 citationsarXiv
TOI-283 b: A transiting mini-Neptune in a 17.6-day orbit discovered with TESS and ESPRESSO2510.15084v1 · F. Murgas, E. Pall'e, A. Su'arez Mascareno et al.2025 · 1 citationarXiv
An Ultra-Short Period Super-Earth and Sub-Neptune Spanning the Radius Valley Orbiting the Kinematic Thick Disk Star TOI-23452510.12783v1 · Yoshi Nike Emilia Eschen, Thomas G. Wilson, Andrea Bonfanti et al.2025 · 0 citationsarXiv
ATREIDES I. Embarking on a trek across the exo-Neptunian landscape with the TOI-421 system2509.15746v1 · V. Bourrier, M. Steiner, A. Castro-Gonz'alez et al.2025 · 9 citationsA&A, 701, A190 (2025)
Detection and characterisation of a 106-day transiting Jupiter : TOI-2449 b / NGTS-36 b2509.15424v1 · S. Ulmer-Moll, S. Gill, R. Brahm et al.2025 · 3 citationsA&A 703, A258 (2025)
Transit Timing Variations in HIP 41378: CHEOPS and TESS confirm a non-transiting sixth planet in the system2509.14156v3 · P. Leonardi, L. Borsato, L. Pagliaro et al.2025 · 3 citationsA&A 702, A211 (2025)
A four-planet system orbiting the old thick disk star TOI-12032509.10136v1 · D. Gandolfi, A. Alnajjarine, L. M. Serrano et al.2025 · 1 citationarXiv
Stellar-activity analysis of the nearby M dwarf GJ 526. Multi-dimensional Gaussian-process modelling of RV, FWHM and S-index2509.03276v1 · A. K. Stefanov, J. I. Gonz'alez Hern'andez, A. Su'arez Mascareno et al.2025 · 1 citationA&A 703, A245 (2025)
Improved characterization of the TOI-2141 system: a dense sub-Neptune with non-transiting inner and outer companions2509.00762v1 · R. Luque, K. W. F. Lam, J. Cabrera et al.2025 · 0 citationsA&A 704, A174 (2025)
TOI-2322: two transiting rocky planets close to the stellar rotation period and its first harmonic2508.18094v1 · M. J. Hobson, A. Su'arez Mascareno, C. Lovis et al.2025 · 3 citationsA&A 702, A32 (2025)
The CHEOPS view of HD 95338b: refined transit parameters, and a search for exomoons2507.15318v1 · Sz. K'alm'an, A. E. Simon, A. Deline et al.2025 · 1 citationA&A 701, A240 (2025)
A comprehensive study on radial velocity signals using ESPRESSO: Pushing precision to the 10 cm/s level2507.07514v1 · P. Figueira, J. P. Faria, A. M. Silva et al.2025 · 13 citationsarXiv
The star HIP 41378 potentially misaligned with its cohort of long-period planets2507.01807v2 · S. Grouffal, A. Santerne, V. Bourrier et al.2025 · 5 citationsA&A 701, A173 (2025)
A systematic bias in template-based RV extraction algorithms2506.23261v1 · Andr'e M. Silva, N. C. Santos, J. P. Faria et al.2025 · 9 citationsA&A 700, A93 (2025)
The KELT-7b atmospheric thermal-inversion conundrum revisited with CHEOPS, TESS, and additional data2506.20432v1 · Z. Garai, A. Krenn, P.E. Cubillos et al.2025 · 2 citationsarXiv
Three Hot Jupiters transiting K-dwarfs with a significant heavy element mass2506.04923v1 · Y.G.C. Frensch, F. Bouchy, G. Lo Curto et al.2025 · 1 citationA&A 700, A118 (2025)
gr8stars I: A homogeneous spectroscopic study of bright FGKM dwarfs and a public library of their high-resolution spectra2505.12945v1 · Alix Violet Freckelton, Annelies Mortier, Megan Bedell et al.2025 · 2 citationsarXiv
Dark skies of the slightly eccentric WASP-18 b from its optical-to-infrared dayside emission2505.01544v2 · A. Deline, P. E. Cubillos, L. Carone et al.2025 · 9 citationsA&A 699, A150 (2025)
HD 35843: A Sun-like star hosting a long period sub-Neptune and inner super-Earth2505.00898v1 · Katharine Hesse, Ismael Mireles, Francois Bouchy et al.2025 · 1 citationarXiv
Two neighbours of the ultra-short-period Earth-sized planet K2-157 b in the warm Neptunian savanna2504.20999v2 · A. Castro-Gonz'alez, F. Bouchy, A. C. M. Correia et al.2025 · 6 citationsA&A 699, A344 (2025)
Exploring the Neptunian Desert: Insights from a Homogeneous Planetary Sample2504.16164v1 · Lauren Doyle, David J. Armstrong, Lorena Acuna et al.2025 · 15 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
TOI-512: Super-Earth transiting a K-type star discovered by TESS and ESPRESSO2502.14472v1 · J. Rodrigues, S.C. Barros, N.C. Santos et al.2025 · 3 citationsarXiv
Vertical structure of an exoplanet's atmospheric jet stream.39965655 · Seidel, Julia V, Prinoth, Bibiana, Pino, Lorenzo et al.2025 · 31 citationsNature. 2025;639(8056):902-908
Searching for Hot Water World Candidates with CHEOPS: Refining the radii and analysing the internal structures and atmospheric lifetimes of TOI-238 b and TOI-1685 b2502.07887v1 · J. A. Egger, D. Kubyshkina, Y. Alibert et al.2025 · 6 citationsA&A 696, A28 (2025)
KOBE-1: The first planetary system from the KOBE survey. Two planets likely residing in the sub-Neptune mass regime around a late K-dwarf2502.01249v2 · O. Balsalobre-Ruza, J. Lillo-Box, A. M. Silva et al.2025 · 7 citationsA&A, A15, 694 (2025)
Revisiting the multi-planetary system of the nearby star HD 20794: Confirmation of a low-mass planet in the habitable zone of a nearby G-dwarf2501.17092v1 · N. Nari, X. Dumusque, N. C. Hara et al.2025 · 12 citationsA&A; Volume 693; A297; 2025
The NCORES Program: Precise planetary masses, null results, and insight into the planet mass distribution near the radius gap2501.14355v2 · David J. Armstrong, Ares Osborn, Remo Burn et al.2025 · 0 citationsarXiv
Transit-timing variations in the AU Mic system observed with CHEOPS2501.13575v1 · 'A. Boldog, Gy. M. Szab'o, L. Kriskovics et al.2025 · 6 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)
CHEOPS observations confirm nodal precession in the WASP-33 system2412.08557v1 · A. M. S. Smith, Sz. Csizmadia, V. Van Grootel et al.2024 · 2 citationsA&A 2025 693 A128
A joint effort to discover and characterize two resonant mini Neptunes around TOI-1803 with TESS, HARPS-N and CHEOPS2412.05423v1 · T. Zingales, L. Malavolta, L. Borsato et al.2024 · 3 citationsA&A 695, A273 (2025)
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