Results 21 to 30 of about 135,263 (156)

The Collisional Evolution of the Primordial Kuiper Belt, Its Destabilized Population, and the Trojan Asteroids

The Planetary Science Journal, 2023
The tumultuous early era of outer solar system evolution culminated when Neptune migrated across the primordial Kuiper Belt (PKB) and triggered a dynamical instability among the giant planets.
William F. Bottke, David Vokrouhlický, Raphael Marschall, David Nesvorný, Alessandro Morbidelli, Rogerio Deienno, Simone Marchi, Luke Dones, Harold F. Levison   +8 more
doaj   +1 more source

A ring system detected around the Centaur (10199) Chariklo [PDF]

, 2014
Hitherto, rings have been found exclusively around the four giant planets in the Solar System1. Rings are natural laboratories in which to study dynamical processes analogous to those that take place during the formation of planetary systems and galaxies.
Vanzi, L., Frank, N.R., Spagnotto, Julio, H. Monteiro, Harpsøe, Kennet Bomann West, J. Lecacheux, M. Emilio, Braga-Ribas, Felipe, F. Roques, M. Gillon, E. Jehin, Vanzi, Leonardo, Machado, D. I., Roques, Françoise, Lellouch, Emmanuel, Vachier, Frédéric, R. Sfair, Almenares, L., Colazo, C., Colas, F., D. G. Lambas, Jørgensen, U., Jehin, E., Lemos, Pablo, J. L. Ortiz, J. B. Haislip, J. P. Moore, Gil Hutton, Ricardo Alfredo, Wang, X.-b., Gil-Hutton, Ricardo, Ivarsen, Kevin, Opitom, C., R. Melia, Ortiz, J. L., Moore, J., A. Ceretta, Harpsoe, K., Schneiter, E. M., Lambas, Diego García, Lacluyze, A.P., Braga-Ribas, F., Lorenzini, L., Schneiter, E.M., B. Sicardy, Gu, S.-h., L. Almenares, Melia, R., L. Maquet, Reichart, Daniel E., LaCluyze, A. P., Haislip, J. B., Ivarsen, K. M., L. Vanzi, Benedetti-Rossi, G., R. G. Sandness, Haislip, J.B., Garcia Lambas, Diego Rodolfo, G. Tancredi, Perez, V., J. Spagnotto, Sicardy, Bruno, Wang, Xiaobin, Martinez, N., Colas, François, P. Kervella, P. Lemos, Benedetti-Rossi, Gustavo, C. Colazo, Gil-Hutton, R., LaCluyze, A., Tancredi, G., Frank, N. R., Gu, S. -H., Snodgrass, Colin, Maury, A., Gillon, Michaël, Gomes, A. Ramos, Manfroid, Jean, MacHado, D.I., Gomes Jr., A., F. Char, Widemann, Thomas, Ceretta, Alberto, Maury, A. J., M. Dominik, Schneiter, E., Tancredi, Gonzalo, Char, F., Opitom, Cyrielle, Gillon, M., Brage-Ribas, F., Roland, S., Lacluyze, Aaron P., Moutamid, M. El, Lambas, D., Roques, F., Ceretta, A., Manfroid, J., Ligier, N., Lecacheux, J., V. Perez, Monteiro, H., Lambas, D. G., S. Roland, U. G. Jørgensen, El Moutamid, Maryame, Harpsøe, Kennet, Machado, D., J. Pollock, Leiva, R., R. Gil-Hutton, Colazo, Carlos, Benedetti Rossi, G., Mehret, Leandro Cesar, Braga Ribas, F., Frank, Nathan R., El Moutamid, M., Assafin, Marcelo, A. Ramos Gomes, Emilio, M., Gu, S., Jorgensen, U. G., Gu, Shenghong, N. Ligier, M. Rabus, Camargo, Julio, L. Lorenzini, Rabus, Markus, Skottfelt, Jesper Mirsa, Camargo, J. I. B., Sicardy, B., Skottfelt, J., Vieira-Martins, R., Lemos, P., Moore, Justin, Char, Farid, Moore, J.P., Rabus, M., Roig, F., Ivarsen, K., Vachier, F., Sandness, R. G., Wang, X. -B., Camargo, J., K. M. Ivarsen, Haislip, Joshua, Skottfelt, Jesper, Assafin, M., Lellouch, E., Vierira-Martins, R., Sandness, R.G., Vieira Martins, R., Ivarsen, K.M., Reichart, D.E., D. I. Machado, Gomes, A. R., J. Manfroid, Camargo, J., I B, Sfair, R. [UNESP], E. Lellouch, Frank, N., N. Morales, Reichart, D., F. Colas, Ortiz, J.L., X.-b. Wang, C. Opitom, S.-h. Gu, F. Braga-Ribas, Emilio, Marcelo, N. R. Frank, K. Harpsøe, Roland, Santiago, Vieira-Martins, Roberto, J. Skottfelt, Harpsøe, K., Jorgensen, U., N. Martinez, Moore, J. P., Ligier, Nicolas, J. I. B. Camargo, Pollock, J., Camargo, J.I.B., Reichart, D. E., Melia, Raul Roberto, Lecacheux, Jean, Jørgensen, Uffe Gråe, C. Snodgrass, Jørgensen, U.G., G. Benedetti-Rossi, Haislip, J., M. El Moutamid, Camargo, J.,, Sfair, R., Maquet, L., Sfair, Rafael, Mehret, L., Duffard, R., Jørgensen, U. G., Dominik, M., Duffard, R,, Kervella, Patrick, Dominik, Martin, R. Vieira-Martins, Snodgrass, C., Spagnotto, J., Widemann, T., Duffard, René, A. P. LaCluyze, Pollock, Joseph, E. M. Schneiter, Maquet, Lucie, Sandness, R., Morales, N., Kervella, P., Wang, X., L. Mehret, A. Maury, Ramos Gomes, A., F. Vachier, Jehin, Emmanuel, T. Widemann, R. Duffard, Schneiter, E. Matías, F. Roig, R. Leiva, M. Assafin, Ortiz, J., D. E. Reichart, Ortiz, José Luis, Morales, Nicolás, Duffard, René D., Gomes, A. Ramos, Jr., Dominik, M.; id_orcid   +233 more
core   +1 more source

The Origin of Neptune's Unusual Satellites from a Planetary Encounter

, 2020
The Neptunian satellite system is unusual, comprising Triton, a large (∼2700 km) moon on a close-in, circular, yet retrograde orbit, flanked by Nereid, the largest irregular satellite (∼300 km) on a highly eccentric orbit.
Christou, Apostolos A.,, Li, Daohai, Christou, Apostolos A.   +2 more
core   +1 more source

Misaligned Rings Around Minor Planets with Moons

Universe
Recent observations have confirmed the existence of rings around minor bodies in the outer solar system. These objects may possess satellites as well. Here, we analytically investigate the interaction between such rings and satellites.
Barnabás Deme
doaj   +1 more source

Elastic Properties of Titan Tholins Revealed by Brillouin Spectroscopy

Journal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
Abstract Titan tholins, complex organic solids synthesized by simulating photochemical processes in Titan's atmosphere, are widely regarded as analogs to organic surface materials on the Saturnian moon. Their mechanical properties are critical for understanding the evolution of Titan's geomorphology and crustal layering.
Mark A. Johnson, Jose R. Montes‐Bojorquez, Adis Husić, Xinting Yu, Wenhao Su, Jia‐Sen Hu, Ryan Blase, Edward Patrick, Alan Whittington, Jin S. Zhang   +9 more
wiley   +1 more source

Improved Astrometry in a Sparse Star Field and New Positions of Triton and Nereid (2018–2020)

The Astronomical Journal
High-precision astrometry of Neptunian satellites is fundamental for determining their orbital parameters and can provide clues to the origin and evolution of the Neptunian system.
X. Q. Fang, Q. Y. Peng, Y. D. Ping, F. Li, T. R. Sun, X. Wang, X. Lu, B. F. Guo   +7 more
doaj   +1 more source

Investigating Galactic Cosmic Ray Ionization’s Contribution to Aerosol Formation on Neptune and a Potential Link to the Relationship Between Brightness and Solar Activity

Journal of Geophysical Research: Planets, Volume 131, Issue 9, September 2026.
Abstract In this work we investigate how ionization from Galactic Cosmic Rays (GCRs) can affect aerosol nucleation on Neptune and discuss potential implications for the observed brightness variations that appear to follow the solar cycle. We calculate the planetary vertical cutoff rigidity for Neptune based on the O8 ${\mathrm{O}}_{8}$ magnetic field ...
Martin B. B. Enghoff, Paul N. Romani, John E. P. Connerney, John L. Jørgensen   +3 more
wiley   +1 more source

New Moons of Uranus and Neptune from Ultradeep Pencil-beam Surveys

The Astronomical Journal
We have conducted extremely ultradeep pencil-beam observations for new satellites around both Uranus and Neptune. Tens of images on several different nights in 2021, 2022, and 2023 were obtained, shifted, and added together to reach as faint as 26.9 and ...
Scott S. Sheppard, David J. Tholen, Marina Brozovic, Robert Jacobson, Chadwick A. Trujillo, Patryk Sofia Lykawka, Mike Alexandersen   +6 more
doaj   +1 more source

The ORCA‐TWIN qCMOS Experiment I. Science Case and Commissioning at Calar Alto Observatory

Astronomische Nachrichten, Volume 347, Issue 7, August 2026.
ABSTRACT We describe a pilot study to explore a new generation of fast and low noise CMOS image sensors for time domain astronomy, using two remote telescopes with a baseline of 1635 km. The experiment involves direct imaging with novel qCMOS image sensor technology that combines fast readout with sub‐electron readout noise.
Martin M. Roth, Paško Roje, Stella Vješnica, Stefan Cikota, Alex J. Brown, Mike Kretlow, Marco Azzaro, Santiago Reinhart, Jesús Aceituno, Harry Dawson, Carsten Denker, Torsten Enßlin, Stephan Geier, Thomas Granzer, Thomas Kupfer, Gianluca Li Causi, Samaya Nissanke, José Luis Ortiz, Fernando Pedichini, Katja Poppenhäger, Axel Schwope   +20 more
wiley   +1 more source

Post‐Eocene 90° CCW Rotation of Sardinia‐South Corsica: Paleomagnetic Evidence From Permian‐Cretaceous Sediments of Nurra (NW Sardinia)

Tectonics, Volume 45, Issue 5, May 2026.
Abstract The paleomagnetism of Miocene calc‐alkaline volcanics and sediments from Sardinia has firmly showed that the Corsica‐Sardinia microplate rotated 50°–60° counterclockwise (CCW) with respect to Europe between 21 and 15 Ma, during its drift from the Provencal margin. However, Permian to Eocene rocks from central‐south Sardinia revealed higher (up
Gaia Siravo, Fabio Speranza, Giacomo Oggiano, Lilla Spagnuolo   +3 more
wiley   +1 more source