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3,020 papers
A solution to the paradox of youth in the Galactic centre
Rodrigo P. Silva, Alexandre C. M. Correia, Tjarda C. N. Boekholt +1
The supermassive black hole at the Galactic centre, Sgr A*, is surrounded by an S cluster of young stars. These stars are predominantly B-type stars, but their origin remains uncer…
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…
A self-consistent single-fluid framework for neutron stars admixed with mirror dark matter
Adamu Issifu, Constança Providência, Franciele M. da Silva +2
We develop a self-consistent dark matter admix neutron star framework based on a contact vector current--current interaction that couples the chemical potentials of both sectors th…
Spin-spin coupling in stellar binaries
Alexandre C. M. Correia
Spin-orbit misalignment is increasingly observed in binary stars, but its origin remains uncertain. We study the secular spin dynamics of stellar binaries and derive the associated…
On a measure-theoretic reading of -Grüss-type inequalities
K. Castillo, Â. Macedo
On its absolute-integrability domain, the positive -integral is integration with respect to a finite positive purely atomic measure. After normalisation, its Chebyshev functiona…
The Neptunian ridge as a natural outcome of high-eccentricity tidal migration
A. Castro-González, V. Bourrier, D. Ehrenreich +3
Recent occurrence-rate analyses have shown that the transition between the Neptunian desert and the savanna is not smooth but instead exhibits an overdensity of planets at $P_{\rm…