activity
20062026
most citedAn extrasolar planetary system with three Neptune-mass planets

387 citations · 3.3k across the 89 of their papers we have counts for

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70 papers · 1 filter

astro-ph.EP2026

Constraining the orbit of the retrograde planet in the Octantis system

Alan Cefali Signor, Alexandre C. M. Correia, Maria Helena Moreira Morais +4

The Octantis system is composed of a compact stellar binary and a retrograde S-type planet orbiting near the edge of stability. Here, we investigate the dynamically viable arch…

astro-ph.EP2023★ 2 cited

Spin and orbital dynamics of planets undergoing thermal atmospheric tides using a vectorial approach

Ema F. S. Valente, Alexandre C. M. Correia

Earth-mass planets are expected to have atmospheres and experience thermal tides raised by the host star. These tides transfer energy to the planet that can counter the dissipation…

astro-ph.EP2023★ 3 cited

Dynamics of trans-Neptunian objects near the 3/1 mean-motion resonance with Neptune

Alan J. Alves-Carmo, Timothée Vaillant, Alexandre C. M. Correia

The complex classification of trans-Neptunian objects (TNOs) that are captured in mean-motion resonances (MMRs) and the constraint of their multiple origins are two significant ope…

astro-ph.EP2023★ 2 cited

TOI-4860 b, a short-period giant planet transiting an M3.5 dwarf

J. M. Almenara, X. Bonfils, E. M. Bryant +47

We report the discovery and characterisation of a giant transiting planet orbiting a nearby M3.5V dwarf (d = 80.4 pc, = 15.1 mag, =11.2 mag, R = 0.358 0.015 R$…

astro-ph.EP2023★ 16 cited

Tidal excitation of the obliquity of Earth-like planets in the habitable zone of M-dwarf stars

Ema F. S. Valente, Alexandre C. M. Correia

Close-in planets undergo strong tidal interactions with the parent star that modify their spins and orbits. In the two-body problem, the final stage for tidal evolution is the sync…

astro-ph.EP2023★ 14 cited

Tidal evolution for any rheological model using a vectorial approach expressed in Hansen coefficients

Alexandre C. M. Correia, Ema F. S. Valente

We revisit the two body problem, where one body can be deformed under the action of tides raised by the companion. Tidal deformation and consequent dissipation result in spin and o…