Results 121 to 130 of about 131,137 (325)

Simulation of the Dual-Frequency Radar Image of Asteroid 2016 HO3 and Implication for Tianwen-2 Mission

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
In China's Tianwen-2 mission, a dual-frequency radar will be carried out to detect the asteroid 2016 HO3. The dual-frequency radar can acquire the information of the asteroid's surface and internal structure. There are few studies about the
Niutao Liu, Ya-Qiu Jin, Feng Xu
doaj   +1 more source

Оптимальное управление движением космического аппарата в поле притяжения астероида Эрос 433

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2019
Рассматривается алгоритм оптимизации управляемого движения космического аппарата с двигателями малой тяги в поле притяжения астероида Эрос 433. Гравитационное поле астероида имеет сложную конфигурацию.
А. Ю. Шорников
doaj   +1 more source

Images from the surface of asteroid Ryugu show rocks similar to carbonaceous chondrite meteorites

Science, 2019
Landing on the surface of Ryugu In October 2018, the Hayabusa2 spacecraft dropped the Mobile Asteroid Surface Scout (MASCOT) lander onto the surface of the asteroid (162173) Ryugu. Jaumann et al.
R. Jaumann, R. Jaumann, N. Schmitz, T. Ho, Stefan Schröder, K. Otto, Katrin Stephan, S. Elgner, K. Krohn, F. Preusker, F. Scholten, J. Biele, S. Ulamec, C. Krause, S. Sugita, K. Matz, T. Roatsch, R. Parekh, R. Parekh, S. Mottola, M. Grott, Patrick Michel, F. Trauthan, A. Koncz, H. Michaelis, C. Lange, J. Grundmann, M. Maibaum, K. Sasaki, Friederike Wolff, Josef Reill, A. Moussi-Soffys, L. Lorda, Wladimir Neumann, J. Vincent, Roland Wagner, J. Bibring, S. Kameda, H. Yano, Sei‐ichiro Watanabe, Sei‐ichiro Watanabe, M. Yoshikawa, Y. Tsuda, T. Okada, T. Yoshimitsu, Y. Mimasu, T. Saiki, H. Yabuta, H. Rauer, H. Rauer, R. Honda, T. Morota, Y. Yokota, T. Kouyama   +53 more
semanticscholar   +1 more source

Seismic Disturbance, Productivity and Depth Shape Hadal Benthic Habitats and Biodiversity in the Japan, Ryukyu and Izu‐Ogasawara Trenches (Northwest Pacific Ocean)

Journal of Biogeography, EarlyView.
ABSTRACT Aim This study characterises benthic habitats and associated biodiversity in three Japanese subduction trenches, and explores the effects of trench‐specific differences in large‐scale seismic events, disturbance and productivity regimes on habitat structure and assemblage composition.
Denise J. B. Swanborn, Todd Bond, Heather A. Stewart, Elrond A. Garcia, Melanie S. Stott, Hiroshi Kitazato, Alan J. Jamieson   +6 more
wiley   +1 more source

Collisional Formation and Modeling of Asteroid Families

, 2015
In the last decade, thanks to the development of sophisticated numerical codes, major breakthroughs have been achieved in our understanding of the formation of asteroid families by catastrophic disruption of large parent bodies.
Asphaug, Erik, Durda, Daniel D., Jutzi, Martin, Michel, Patrick, Richardson, Derek C.   +4 more
core   +1 more source

Expelled by the Antarctic ice: Evolutionary history of the tribe Cunonieae (Cunoniaceae)

Journal of Systematics and Evolution, EarlyView.
Multiple fossil calibration points reveal recent radiations and biogeographical history of the Cunonieae tribe. The most densely sampled phylogeny allowed to infer Antarctica and Patagonia as areas of origin, confirming the reestablishment of Pterophylla and revealing the northward movement of Weinmannia into the tropical Andes. Conflicting plastid and
Francisco Fajardo‐Gutiérrez, Mariasole Calbi, Markus S. Dillenberger, Sebastian Tello, Alfredo Fuentes, Nora H. Oleas, Ricardo A. Segovia, Christine E. Edwards, Yohan Pillon, James E. Richardson, Thomas Borsch   +10 more
wiley   +1 more source

ASIME 2018 White Paper. In-Space Utilisation of Asteroids: Asteroid Composition -- Answers to Questions from the Asteroid Miners

, 2019
In keeping with the Luxembourg government's initiative to support the future use of space resources, ASIME 2018 was held in Belval, Luxembourg on April 16-17, 2018.
Abbud-Madrid, Angel, Abell, Paul, Barucci, Antonella, Beck, Pierre, Bonal, Lydie, Bonin, Grant, Borgersen, Øystein Risan, Britt, Daniel, Campins, Humberto, Cannon, Kevin, Carnelli, Ian, Carry, Benoît, Crawford, Ian, de Leon, Julia, Donaldson-Hanna, Kerri, Drube, Line, Elvis, Martin, Fitzsimmons, Alan, Galache, JL, Graps, Amara L., Green, Simon F., Grundmann, Jan Thimo, Herique, Alan, Hestroffer, Daniel, Hsieh, Henry, Kereszturi, Akos, Kueppers, Michael, Lewicki, Chris, Lin, Yangting, Mainzer, Amy, Michel, Patrick, Moon, Hong-Kyu, Nakamura, Tomoki, Penttila, Antti, Pursiainen, Sampsa, Raymond, Carol, Reddy, Vishnu, Rivkin, Andy, Sercel, Joel, Stickle, Angela, Takala, Mika, Tanga, Paolo, Wirtz, Tom, Wu, YunZhao   +43 more
core  

Reconstructing the size distribution of the primordial Main Belt

, 2017
In this work we aim to constrain the slope of the size distribution of main-belt asteroids, at their primordial state. To do so we turn out attention to the part of the main asteroid belt between 2.82 and 2.96~AU, the so-called "pristine zone", which has
Delbo, Marco, Morbidelli, Alessandro, Tsiganis, Kleomenis, Tsirvoulis, Georgios   +3 more
core   +2 more sources

A statistical investigation into relationships between the IIE irons and the ordinary, F and “HH” chondrites

Meteoritics &Planetary Science, EarlyView.
Abstract It has been proposed that IIE iron meteorites formed through impact processes on a parent body that was composed of either the H chondrites or a much‐debated fourth ordinary chondrite group, the HH chondrites. To resolve this debate, we have compiled a large dataset for the ordinary chondrites, low‐fayalite ungrouped chondrites, and IIE irons,
Rachel S. Kirby, Penelope L. King, Andrew G. Tomkins   +2 more
wiley   +1 more source

Long-term Stable Equilibria for Synchronous Binary Asteroids

, 2011
Synchronous binary asteroids may exist in a long-term stable equilibrium, where the opposing torques from mutual body tides and the binary YORP (BYORP) effect cancel.
Goldreich, Goldreich, Love, McMahon, Murray, Pravec, Pravec, Ćuk   +7 more
core   +1 more source