129 citations · 311 across the 13 of their papers we have counts for
12 papers · 1 filter
Multi-Wavelength Post-Perihelion Polarimetry of Interstellar Comet 3I/ATLAS
Zuri Gray, Galin Borisov, Ludmilla Kolokolova +15
We present new post-perihelion polarimetric observations of the third discovered interstellar object, 3I/ATLAS (C/2025 N1; hereafter 3I), obtained using FORS2 at the Very Large Tel…
Polarimetry and albedo of the Near-Earth Asteroid 2025 FA22
J. -P. Rivet, S. Bagnulo, P. Bendjoya +17
We report spectropolarimetric and broadband polarimetric observations of the near-Earth asteroid 2025 FA22 during its close approach of 18 September 2025 (about two Moon distances)…
Rapid-response characterization of near-Earth asteroid 2024 YR4 during a Torino Scale 3 alert
Maxime Devogèle, Olivier R. Hainaut, Marco Micheli +32
On 27 December 2024, near-Earth object (NEO) 2024 YR was discovered by the ATLAS survey and identified as a virtual impactor. A few weeks later, it eventually reached level 3 o…
An ancient L- type family associated to (460) Scania in the Middle Main Belt as revealed by Gaia DR3 spectra
Roberto Balossi, Paolo Tanga, Marco Delbo +2
Asteroid families are typically identified using hierarchical clustering methods (HCM) in the proper element phase space. However, these methods struggle with overlapping families,…
Extreme Negative Polarisation of New Interstellar Comet 3I/ATLAS
Zuri Gray, Stefano Bagnulo, Galin Borisov +13
We present the first polarimetric observations of the third discovered interstellar object, 3I/ATLAS (C/2025 N1), obtained pre-perihelion with FORS2/VLT, ALFOSC/NOT, and FoReRo2/RC…
Cross validation of albedo determination for 1627 Ivar from three different techniques
Elena Selmi, M. Devogèle, J. R. Masiero +10
Near Earth Asteroids are of great interest to the scientific community due to their proximity to Earth, making them both potential hazards and possible targets for future missions,…
Gaia DR3 asteroid reflectance spectra: L-type families, memberships, and ages
Roberto Balossi, Paolo Tanga, Alexey Sergeyev +2
The Gaia Data Release 3 (DR3) contains reflectance spectra at visible wavelengths for 60,518 asteroids over the range between 374-1034 nm, representing a large sample that is well…
Polarimetry of Didymos-Dimorphos: Unexpected Long-Term Effects of the DART Impact
Zuri Gray, Stefano Bagnulo, Mikael Granvik +9
We have monitored the Didymos-Dimorphos binary system in imaging polarimetric mode before and after the impact from the Double Asteroid Redirection Test (DART) mission. A previous…
Gaia Focused Product Release: Asteroid orbital solution. Properties and assessment
Gaia Collaboration, P. David, F. Mignard +2
Context. We report the exploitation of a sample of epoch astrometry for 157 000 asteroids, the same object in the Gaia Data Release 3, extended over the time coverage planned for t…
Experimental phase function and degree of linear polarization of cometary dust analogs
Elisa Frattin, Olga Muñoz, Fernando Moreno +12
We present experimental phase function and degree of linear polarization curves for seven samples of cometary dust analogues namely: ground pieces of Allende, DaG521, FRO95002 and…
On the Ages of Resonant, Eroded and Fossil Asteroid Families
A. Milani, Z. Knežević, F. Spoto +3
In this work we have estimated 10 collisional ages of 9 families for which for different reasons our previous attempts failed. In general, these are difficult cases that required d…
A successful search for hidden Barbarians in the Watsonia asteroid family
A. Cellino, S. Bagnulo, P. Tanga +2
Barbarians, so named after the prototype of this class (234) Barbara, are a rare class of asteroids exhibiting anomalous polarimetric properties. Their very distinctive feature is…