Publications (8)
Search for companions around Sirius
Jean-Marc Bonnet-Bidaud, Francois Colas, Jean Lecacheux
Since the discovery of Sirius-B about 130 yr ago, there have been several claims of a possible second companion around the brightest star Sirius-A. Such a companion could, in parti…
A New, Long-Lived, Jupiter Mesoscale Wave Observed at Visible Wavelengths
Amy A. Simon, Ricardo Hueso, Peio Inurrigarro +12
Small-scale waves were observed along the boundary between Jupiter's North Equatorial Belt and North Tropical Zone, ~16.5° N planetographic latitude in Hubble Space Telescope data…
A transmission hologram for slitless spectrophotometry on a convergent telescope beam. Optimisation and characterization
Sylvie Dagoret-Campagne, Marc Moniez, Jeremy Neveu +8
This article details the optimisation and the characterisation of the hologram described in a companion paper published in 2021, which showed the superiority of a holographic optic…
Size, shape, density, and atmospheric limit of (50000) Quaoar revealed from 14 years of stellar occultation
Giuliano Margoti, Felipe Braga-Ribas, José Luis Ortiz +173
We present results from 28 stellar occultations by the large Trans-Neptunian Object (50000) Quaoar registered between 2018 and 2025. By performing a joint analysis of this occultat…
Luminous efficiency based on FRIPON meteors
Esther Drolshagen, Theresa Ott, Detlef Koschny +36
In meteor physics the luminous efficiency is used to convert the meteor's magnitude to the corresponding meteoroid's mass. However, lack of sufficiently accurate verification…
The Winchcombe Fireball -- that Lucky Survivor
Sarah McMullan, Denis Vida, Hadrien A. R. Devillepoix +34
On February 28, 2021, a fireball dropped kg of recovered CM2 carbonaceous chondrite meteorites in South-West England near the town of Winchcombe. We reconstruct the fireb…
Action Research in Astronomy and Ecology: The observatory of the night environment in Grenoble
Julien Milli, Merlin Boribon, Fabien Malbet +4
We present an example of low-carbon research activity carried out by astrophysicists and focused on ecology and environmental protection, with direct impacts on territories and soc…
Perihelion history and atmospheric survival as primary drivers of the Earth`s meteorite record
Patrick M. Shober, Hadrien A. R. Devillepoix, Jeremie Vaubaillon +7
Models predict that more than half of all impacting meteoroids should be carbonaceous, reflecting the abundance of carbon-rich asteroids in the main belt and near-Earth space. Yet…