Zobrazeno 1 - 10
of 275
pro vyhledávání: '"A. Guilbert-Lepoutre"'
Born as ice-rich planetesimals, cometary nuclei were gravitationally scattered onto their current orbits in the Kuiper Belt and the Oort Cloud during the giant planets' dynamical instability in the early stages of our Solar System's history. Here, we
Externí odkaz:
http://arxiv.org/abs/2410.01923
Autor:
Pinilla-Alonso, N., Licandro, J., Brunetto, R., Henault, E., Schambeau, C., Guilbert-Lepoutre, A., Stansberry, J., Wong, I., Lunine, J. I., Holler, B. J., Emery, J., Protopapa, S., Cook, J., Hammel, H. B., Villanueva, G. L., Milam, S. N., Cruikshank, D., de Souza-Feliciano, A. C.
(2060) Chiron is a large centaur that has been reported active on multiple occasions including during aphelion passage. Studies of Chirons coma during active periods have resulted in the detection of C(triple)N and CO outgassing. Significant work rem
Externí odkaz:
http://arxiv.org/abs/2407.07761
Autor:
Guilbert-Lepoutre, Aurélie, Benseguane, Selma, Martinien, Laurine, Lasue, Jérémie, Besse, Sébastien, Grieger, Björn, Beth, Arnaud
Large and deep depressions, also known as pits, are observed at the surface of all Jupiter Family Comets (JFCs) imaged by spacecraft missions. They offer the opportunity to glimpse into sub-surface characteristics of comet nuclei, and study the compl
Externí odkaz:
http://arxiv.org/abs/2311.02036
Autor:
Silvia Protopapa, Ujjwal Raut, Ian Wong, John Stansberry, Geronimo L. Villanueva, Jason Cook, Bryan Holler, William M. Grundy, Rosario Brunetto, Richard J. Cartwright, Bereket Mamo, Joshua P. Emery, Alex H. Parker, Aurelie Guilbert-Lepoutre, Noemi Pinilla-Alonso, Stefanie N. Milam, Heidi B. Hammel
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-13 (2024)
Abstract Charon, Pluto’s largest moon, has been extensively studied, with research focusing on its primitive composition and changes due to radiation and photolysis. However, spectral data have so far been limited to wavelengths below 2.5 μm, leav
Externí odkaz:
https://doaj.org/article/f61206c6fe4b4228bf14fc9c2cf2445a
Publikováno v:
A&A 673, A117 (2023)
Context. Our Galaxy is composed of different stellar populations with varying chemical abundances, which are thought to imprint the composition of planet building blocks (PBBs). As such, the properties of stars should affect the properties of planets
Externí odkaz:
http://arxiv.org/abs/2301.05034
One of the common approximations in long-term evolution studies of small bodies is the use of circular orbits averaging the actual eccentric ones, facilitating the coupling of processes with very different timescales, such as the orbital changes and
Externí odkaz:
http://arxiv.org/abs/2212.06638
It was recently proposed that there exists a "gateway" in the orbital parameter space through which Centaurs transition to Jupiter-family Comets (JFCs). Further studies have implied that the majority of objects that eventually evolve into JFCs should
Externí odkaz:
http://arxiv.org/abs/2212.06637
Autor:
Benseguane, Selma, Guilbert-Lepoutre, Aurélie, Lasue, Jérémie, Besse, Sébastien, Leyrat, Cédric, Beth, Arnaud, Sitjà, Marc Costa, Grieger, Björn, Capria, Maria Teresa
The observation of pits at the surface of comets offers the opportunity to take a glimpse into the properties and the mechanisms that shape a nucleus through cometary activity. If the origin of these pits is still a matter of debate, multiple studies
Externí odkaz:
http://arxiv.org/abs/2210.14634
Evidence for cometary activity beyond Jupiter and Saturn's orbits -- such as that observed for Centaurs and long period comets -- suggests that the thermal processing of comet nuclei starts long before they enter the inner Solar System, where they ar
Externí odkaz:
http://arxiv.org/abs/2202.06685
Autor:
Kral, Quentin, Pringle, J. E., Guilbert-Lepoutre, Aurélie, Matrà, Luca, Moses, Julianne I., Lellouch, Emmanuel, Wyatt, Mark C., Biver, Nicolas, Bockelée-Morvan, Dominique, Bonsor, Amy, Petit, Franck Le, Gladstone, G. Randall
Publikováno v:
A&A 653, L11 (2021)
Gas has been detected in many exoplanetary systems ($>$10 Myr), thought to be released in the destruction of volatile-rich planetesimals orbiting in exo-Kuiper belts. In this letter, we aim to explore whether gas is also expected in the Kuiper belt (
Externí odkaz:
http://arxiv.org/abs/2104.01035