249 citations
- Champlain Regional CollegeCA16 papers
- Université de MontréalCA14 papers
- Massachusetts Institute of TechnologyUS12 papers
- Ames Research CenterUS10 papers
- Université de SherbrookeCA10 papers
- California Institute of TechnologyUS8 papers
- Center for Astrophysics Harvard & SmithsonianUS8 papers
- Centre National de la Recherche ScientifiqueFR8 papers
- Princeton UniversityUS7 papers
- Instituto de Astrofísica de CanariasES6 papers
- Royal Military College of CanadaCA6 papers
- Search for Extraterrestrial IntelligenceUS6 papers
11 papers · 1 filter
Helmoltz problem for the Riccati equation from an analogous Friedmann equation
Valerio Faraoni
We report a solution of the inverse Lagrangian problem for the first order Riccati differential equation by means of an analogy with the Friedmann equation of a suitable Friedmann-…
Wave packet treatment of neutrino flavor oscillations in various spacetimes
P. Sadeghi, F. Hammad, A. Landry +1
We study the effect of gravity on neutrino flavor oscillations when each mass eigenstate is described by a wave packet instead of a plane wave. Two different approaches for impleme…
Area-law versus Rényi and Tsallis black hole entropies
Shin'ichi Nojiri, Sergei D. Odintsov, Valerio Faraoni
The Rényi and Tsallis entropies are discussed as possible alternatives to the Bekenstein-Hawking area-law entropy. It is pointed out how replacing the entropy notion, but not the H…
Revisiting geodesic observers in cosmology
Geneviève Vachon, Robert Vanderwee, Valerio Faraoni
Geodesic observers in cosmology are revisited. The coordinates based on freely falling observers introduced by Gautreau in de Sitter and Einstein-de Sitter spaces (and, previously,…
Disformal mappings of spherical DHOST geometries
Valerio Faraoni, Alexandre Leblanc
New solutions of DHOST theories can be generated by applying a disformal tranformation to a known seed solution. We examine the nature of spherically symmetric solutions of DHOST g…
TOI-1278 B: SPIRou unveils a rare Brown Dwarf Companion in Close-In Orbit around an M dwarf
Étienne Artigau, Guillaume Hébrard, Charles Cadieux +39
We present the discovery of an M brown dwarf (BD) companion to the M0V star TOI-1278. The system was first identified through a percent-deep transit in TESS…