Yet again, the February issue of A&A (vol. 706) still says “in progress”. But March is up, so here goes:
Carruba, V. Sfair, R. Winter, O. C. The dynamically hazardous asteroid 2025 TV10 – A new co-orbital asteroid of Venus L9 202558104
Henych, T. Borovička, J. Čapek, D. et al. Geminids are initially cracked by atmospheric thermal stress A26 202557701
Hutsemékers, D. Manfroid, J. Jehin, E. et al. Pre-perihelion evolution of the NiI/FeI abundance ratio in the coma of the interstellar comet 3I/ATLAS: From extreme to normal A43 202557484
Matlovič, P. Pisarčíková, A. Pazderová, V. et al. Achondrites in meteor data: Spectra, dynamics, and physical properties of candidate aubrite and eucrite impactors A247 202558248
Yun, X.-T. Stenberg Wieser, G. Nilsson, H. et al. Observations of counter-streaming ions in and around the diamagnetic cavity of comet 67P A258 202557711
M. Fenucci, B. Novaković, M. Granvik et al. Origin of asteroid (469219) Kamo‘oalewa: The main asteroid belt or the Giordano Bruno crater on the Moon? A276 202558680
Agrusa, H. Michel, P. Tidal disruptions of rubble piles: The case of Phobos A353 202557988
de Almeida Jr., A. K. Ferreira, A. F. S. Santos, L. B. T. et al. A generalized dipole-segment model for the gravitational field of elongated bodies A355 202557978
In a letter, Carruba et al. welcome our new neighbor, 2025 TV10. Venus has few co-orbitals, since the nearby, larger Earth acts as a destabilizer. TV10 is all the more special… and someday destabilized.
Geminids are meteors that originate from a parent asteroid, (3200) Phaethon. That’s right, an asteroid, not a comet. Learning all we can about Geminids tells us of the makeup of this strange body.
Hutsemékers et al. continue briefing us on the intruder comet now in our Solar System. We have a clue as to the compositions from another star system, courtesy of 3I/ATLAS.
Most asteroids are unmelted clues from the Solar System’s birth… and some aren’t. Matlovič et al., like so many other meteor specialists in Eastern Europe, track the diversity of asteroids (and their pieces).
The Rosetta mission had its flaws, but plasma studies was not one of them. Yun et al. (like so many other comet specialists in Western Europe) brief us on plasma physics from Rosetta.
The Kamo‘oalewa question continues: what is the origin of Earth’s co-orbital neighbor? Is it ejecta from our Large Achondrite satellite, an escapee from the Main Belt, or… ? We could simply wait until the Tianwen-2 mission to resolve the issue, but what fun would that be?
Phobos is not literally an asteroid, but it’s been used as an asteroid proxy for decades now. The question of rubble-pile mechanics and physics is as apt at Phobos as at any small body. Can’t wait for MMX.
Speaking of mechanics, how does one orbit an irregular body, with its irregular gravity field? This is something we keep returning to, for a reason. de Almeida J. et al. try to reason it out.