Prépublication
· 2026 arXiv
EN
We predict the mass and semi-major axis of a currently unseen but hypothesised planet in the WISPIT 2 system based on the location of the ring observed by ALMA at 144.4 au. Using findings from previous hydrodynamical models, we predict that a ~0.2-1 $M_{Jup}$...
Amena Faruqi, Farzana Meru et al.
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Prépublication
· 2026 arXiv
EN
Titan's equatorial superrotation is associated with climatological retrograde (westward) near-surface winds at low latitudes, as consistently simulated by Titan general circulation models. However, the Huygens probe measured prograde (eastward) near-surface wi...
Sooman Han, Scot Rafkin et al.
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Prépublication
· 2026 arXiv
EN
Contact binaries, appearing as two objects stuck together, are prevalent throughout the Solar System, making up between 30- 50% of asteroids and comets. Despite this, detailed shape models of contact binaries are hard to obtain remotely, requiring rare occulta...
Richard E. Cannon, Agata Rożek et al.
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Prépublication
· 2026 arXiv
EN
We report the discovery and characterization of a planetary system in the microlensing event OGLE-2013-BLG-1125/MOA-2013-BLG-584. We analyze photometric data from OGLE and MOA surveys, as well as LCO, $μ$FUN, and Mindstep follow-up telescopes to model the micr...
E. Bachelet, M. Hundertmark et al.
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Prépublication
· 2026 arXiv
EN
Small planets transiting the nearest M dwarfs are the terrestrial planets most accessible to detailed characterisation. We report a sub-Earth-sized transiting planet candidate in the wide (17.6") M-dwarf binary GJ 774 at 12.86 pc, most likely orbiting the M2.5...
Jaden Tripp
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Prépublication
· 2026 arXiv
EN
Hot Jupiters are typically thought to be "lonely", but a small and growing subset of them have been found to have nearby planets in the same system. We present the discovery of a new member of this class of systems, TOI-3686. TOI-3686 c is a hot Jupiter with $...
Samuel W. Yee, Tarisai Dziire et al.
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Prépublication
· 2026 arXiv
EN
The TESS mission is designed to survey the entire sky to find planets most amenable to follow-up observations, and transit searches have therefore focused specifically on bright targets. Faint stars ($T_{mag}>13.5$) have not been systematically searched for pl...
Matthew Lastovka, Thomas Barclay et al.
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Prépublication
· 2026 arXiv
EN
Observations of exoplanetary atmospheres have revealed a rather complex co-existence between the gaseous and condensed phases, ranging from atmospheres apparently covered in clouds to clear ones, across a myriad of intermediate regimes. The interaction between...
Giambattista Aresu, Giovanni La Mura et al.
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Prépublication
· 2026 arXiv
EN
We report a transiting sub-Neptune candidate with a period of 36.34 days around TIC 402710280 (TYC 9041-03677-1), a K dwarf of TESS magnitude 9.24 at 66.8 pc that the Transiting Exoplanet Survey Satellite (TESS) has observed only in full-frame images. Four tra...
Rishit Vora
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Prépublication
· 2026 arXiv
EN
The Emirates Mission to the Asteroid Belt (EMA) probe is designed to perform asteroid imaging during an uncontrolled ballistic descent to (269) Justitia. The mission design is constrained by main spacecraft proximity operations, uncertain asteroid gravity, lim...
Shamil Biktimirov, Fatima Alnaqbi et al.
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Prépublication
· 2026 arXiv
EN
Rings are ubiquitous among the giant planets in the Solar System, yet their presence around exoplanets remains observationally unconstrained. As direct imaging missions such as the Nancy Grace Roman Space Telescope approach first light, understanding the influ...
Samantha N. Hasler, Alexandra Z. Greenbaum et al.
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Prépublication
· 2026 arXiv
EN
The Nancy Grace Roman Space Telescope's Coronagraph Instrument (CGI) will provide the first opportunity to directly detect mature giant exoplanets in reflected light. However, most known radial-velocity planets lie near CGI's sensitivity limit. In contrast, Sa...
Elizabeth Lane, Mary Anne Limbach et al.
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