7 papers
The dynamically hazardous asteroid 2025 TV. A new co-orbital asteroid of Venus
V. Carruba, R. Sfair, O. C. Winter
Twenty co-orbital asteroids of Venus are currently known, several of which may evolve into potentially hazardous asteroids (PHAs) over timescales of thousands of years. We report t…
Constraining the size, shape, and albedo of the large Trans-Neptunian Object (28978) Ixion with multi-chord stellar occultations
Y. Kilic, F. Braga-Ribas, C. L. Pereira +81
Trans-Neptunian objects (TNOs) are among the most primitive remnants of the early Solar System, and constraining their sizes, shapes, albedos, and surface properties is essential f…
The Moon as a possible source for Earth's co-orbital bodies
R. Sfair, L. C. Gomes, O. C. Winter +3
There is a growing number of Earth's co-orbital bodies being discovered. At least five of them are known to be temporarily in quasi-satellite orbits. One of those, 469219 Kamo'oale…
The invisible threat: assessing the collisional hazard posed by the undiscovered Venus co-orbital asteroids
V. Carruba, R. Sfair, R. A. Araujo +7
Currently, 20 co-orbital asteroids of Venus are known, with only one with an eccentricity below 0.38. This is most likely caused by observational biases since asteroids with larger…
Orbit, meteoroid size, and cosmic ray exposure history of the Aguas Zarcas CM2 breccia
Peter Jenniskens, Gerardo J. Soto, Gabriel Goncalves Silva +21
The Aguas Zarcas (Costa Rica) CM2 carbonaceous chondrite fell during night time in April 2019. Security and dashboard camera video of the meteor were analyzed to provide a trajecto…
Dust production through collisions between small bodies: an application to the G-ring arc
V. Lattari, R. Sfair, P. B. Siqueira +1
The G-ring arc of Saturn, confined by the 7:6 corotation eccentric resonance with Mimas, is primarily composed of micrometric particles. These particles, significantly influenced b…