10 papers
Infrared-to-visible albedo ratio of Phobos: Comparison with primitive asteroids
T. J. Dyer, J. Beccarelli, M. Delbo +5
Aims. The ratio between infrared and visible albedo, pIR/pV, provides a simple proxy for the spectral slope of asteroid surfaces between the visible and near-infrared wavelength ra…
Twin Impact Lunar Telescope network: Lunar Impact Flash observations of the 2025 Geminids
Daniel Sheward, Marco Delbo, Chrysa Avdellidou +23
Meteoroid impacts on the Moon, observed from Earth as flashes typically lasting a few tens of milliseconds, have been monitored for three decades for determining meteoroids' size a…
Shape and spin axis determination of the Tianwen-2 target asteroid (469219) Kamo'oalewa from lightcurve inversion
Roberto Bonamico, Josef Hanuš, Marco Delbo
Near-Earth asteroid (469219) Kamo'oalewa is an Earth quasi-satellite, temporarily trapped in a 1:1 orbital resonance with our planet. Despite its dynamical relevance and the hypoth…
New Insights into Erg Chech 002 Analogues in the Main Belt from Near-Infrared Spectroscopy
M. Galinier, C. Avdellidou, M. Delbo +1
Erg Chech 002 is an andesitic meteorite that formed early in the Solar System's history, and that is thought to have been formed in the primitive crust of an early accreted and dif…
Searching for primitive, dark, spectrally red asteroid families in the main belt with Gaia
Ullas Bhat, Chrysa Avdellidou, Marco Delbo +1
Dark asteroids with featureless neutral to red spectra are of particular interest due to their ability to potentially harbour primitive, hydrated, and possibly organic-rich materia…
Gaia and IRTF abundance of A-type main belt asteroids
Marco Delbo, Chrysa Avdellidou, Marjorie Galinier +4
The Missing Mantle Problem refers to the apparent scarcity of olivine rich (A-type) asteroids in the main belt, despite expectations that such bodies should be common if differenti…