Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Avdellidou, Chrysa"'
In our recent work, we combined dynamical simulations, meteoritic data and thermal models as well as asteroid observations to argue that the current parent body of the EL meteorites was implanted into the asteroid belt not earlier than 60 Myr after t
Externí odkaz:
http://arxiv.org/abs/2404.19390
Autor:
Marsset, Michaël, Vernazza, Pierre, Brož, Miroslav, Thomas, Cristina A., DeMeo, Francesca E., Burt, Brian, Binzel, Richard P., Reddy, Vishnu, McGraw, Allison, Avdellidou, Chrysa, Carry, Benoit, Slivan, Stephen M., Polishook, David
Studies of micrometeorites in mid-Ordovician limestones and Earth's impact craters indicate that our planet witnessed a massive infall of ordinary L chondrite material 466 million years (My) ago (Heck et al. 2017, Schmieder & Kring 2020, Kenkmann 202
Externí odkaz:
http://arxiv.org/abs/2403.08548
The classical theory of differentiation states that due to the heat generated by the decay of radioactive elements, some asteroids form an iron core, an olivine-rich mantle, and a crust. The collisional breakup of these differentiated bodies is expec
Externí odkaz:
http://arxiv.org/abs/2402.10679
Autor:
Beniyama, Jin, Ohsawa, Ryou, Avdellidou, Chrysa, Sako, Shigeyuki, Takita, Satoshi, Ishiguro, Masateru, Sekiguchi, Tomohiko, Usui, Fumihiko, Kinoshita, Shinichi W., Lee, Kianhong, Takumi, Asami, Ferrais, Marin, Jehin, Emmanuël
Studying small near-Earth asteroids is important to understand their dynamical histories and origins as well as to mitigate the damage of the asteroid impact to the Earth. We report the results of multicolor photometry of the tiny near-Earth asteroid
Externí odkaz:
http://arxiv.org/abs/2310.05740
Publikováno v:
A&A 680, A10 (2023)
Near-Earth asteroids Ryugu and Bennu, were visited, characterised, and sampled by the Hayabusa2 and OSIRIS-REx missions: remote sensing data and sample return analysis showed that both asteroids have primitive, hydrated and organic-rich compositions.
Externí odkaz:
http://arxiv.org/abs/2308.13828
Autor:
Sheward, Daniel, Delbo, Marco, Avdellidou, Chrysa, Cook, Anthony, Lognonné, Philippe, Munaibari, Edhah, Zanatta, Luigi, Mercatali, Antonio, Delbo, Silvano, Tanga, Paolo
Lunar impact flash (LIF) observations typically occur in R, I, or unfiltered light, and are only possible during night, targeting the night side of a 10-60% illumination Moon, while >10{\deg} above the observers horizon. This severely limits the pote
Externí odkaz:
http://arxiv.org/abs/2308.00510
Autor:
Ferrone, Salvatore, Delbo, Marco, Avdellidou, Chrysa, Deienno, Rogerio, Melikyan, Robert, Walsh, Kevin, Morbidelli, Alessandro
Publikováno v:
A&A 676, A5 (2023)
After performing a reassessment of the known dynamical asteroid families in the inner main belt, we report a newly discovered ancient asteroid family with an estimated age of $4.3\pm1.7$ billion years. Additionally, we report the most comprehensive l
Externí odkaz:
http://arxiv.org/abs/2306.07725
Publikováno v:
A&A 671, A40 (2023)
Context. Andesitic meteorites are among the oldest achondrites known to date. They record volcanic events and crust formation episodes in primordial planetesimals that took place about 4.565 Myr ago. However, no analogue for these meteorites has been
Externí odkaz:
http://arxiv.org/abs/2301.00699
Autor:
Hasegawa, Sunao, DeMeo, Francesca E., Marsset, Michael, Hanus, Josef, Avdellidou, Chrysa, Delbo, Marco, Bus, Schelte J., Hanayama, Hidekazu, Horiuchi, Takashi, Takir, Driss, Jehin, Emmanuel, Ferrais, Marin, Geem, Jooyeon, Im, Myungshin, Seo, Jinguk, Bach, Yoonsoo P., Jin, Sunho, Ishiguro, Masateru, Kuroda, Daisuke, Binzel, Richard P., Nakamura, Akiko M., Yang, Bin, Vernazza, Pierre
The surface of airless bodies like asteroids in the Solar System are known to be affected by space weathering. Experiments simulating space weathering are essential for studying the effects of this process on meteorite samples, but the problem is tha
Externí odkaz:
http://arxiv.org/abs/2209.09415
Autor:
Sheward, Daniel, Avdellidou, Chrysa, Cook, Anthony, Sefton-Nash, Elliot, Delbo, Marco, Cantarella, Bruno, Zanatta, Luigi
In the last 20 years, over 600 impact flashes have been documented on the lunar surface. This wealth of data presents a unique opportunity to study the meteoroid flux of the Earth-Moon environment, and in recent years the physical properties of the i
Externí odkaz:
http://arxiv.org/abs/2204.12265