Results 121 to 130 of about 128,595 (322)

Iron and copper sulfides in asteroid (162173) Ryugu: Formation conditions and a comparison to the CI and CY chondrites

Meteoritics &Planetary Science, Volume 60, Issue 3, Page 506-528, March 2025.
Abstract JAXA's Hayabusa2 sample return mission visited the volatile‐rich carbonaceous (C‐type) asteroid (162173) Ryugu with the aim of ground‐truthing remote observations, returning a pristine sample from a C‐type asteroid, and strengthening links between asteroids and the meteorite collection. Here, we have conducted a systematic study of coarse (>10 
C. S. Harrison, A. J. King, R. H. Jones, S. S. Russell, T. Nakamura, H. Yurimoto, T. Noguchi, R. Okazaki, H. Yabuta, H. Naraoka, K. Sakamoto, S. Tachibana, T. Yada, M. Nishimura, A. Nakato, A. Miyazaki, K. Yogata, M. Abe, T. Okada, T. Usui, M. Yoshikawa, T. Saiki, S. Tanaka, F. Terui, S. Nakazawa, S. Watanabe, Y. Tsuda   +26 more
wiley   +1 more source

Hayabusa-2 mission target asteroid 162173 Ryugu (1999 JU3): Searching for the object's spin-axis orientation [PDF]

, 2016
The JAXA Hayabusa2 mission was approved in 2011 with launch planned for late 2014. Arriving at the asteroid (162173) 1999 JU_3 in 2018, it will survey it, land, and obtain surface material, then depart in late 2019, and return to the Earth in December ...
T. Müller, J. Ďurech, M. Ishiguro, Michael M. Mueller, T. Krühler, Hongu Yang, Myung-Jin Kim, Laurence O'Rourke, F. Usui, C. Kiss, B. Altieri, Benoit Carry, Young‐Jun Choi, M. Delbo’, J. Emery, Jochen Greiner, S. Hasegawa, J. Hora, F. Knust, D. Kuroda, D. Osip, A. Rau, A. Rivkin, P. Schady, J. Thomas-Osip, D. Trilling, S. Urakawa, E. Vilenius, P. Weissman, P. Zeidler   +29 more
semanticscholar   +1 more source

Magnetic field of planets, satellites and asteroids

Вісник Астрономічної школи, 2012
Origin of magnetic field of the solar system bodies, features and structure of magnetic field of planets of terrestrial type, giant planets, Moon, galilean satellites and asteroids are considered.
A. P. Vidmachenko
doaj   +1 more source

AGONISM IN ASTEROIDS

The Biological Bulletin, 1975
1. Intraspecific agonistic behavior, called bouts, which involves ray interactions between individual sea stars, is reported in species from all three living orders of asteroids and described for Patiria miniata and Pycnopodia helianthoides. This behavior indicates a certain sensitivity to conspecific contact on the aboral surface, in which each ...
openaire   +3 more sources

The solar system Fe/Mg ratio

Meteoritics &Planetary Science, Volume 60, Issue 3, Page 529-543, March 2025.
Abstract Solar wind Fe and Mg fluences (atoms/cm2) were measured from Genesis collectors. Fe and Mg have similar first ionization potentials and solar wind Fe/Mg should equal the solar ratio. Solar wind Fe/Mg is a more valid measure of solar composition than CI chondrites and can be measured more accurately than spectroscopic photospheric abundances ...
D. S. Burnett, A. J. G. Jurewicz, D. S. Woolum, Y. Guan, V. S. Heber, R. Hervig, M. Humayun, K. D. McKeegan, L. R. Nittler, C. T. Olinger, D. B. Reisenfeld, J. Wang   +11 more
wiley   +1 more source

Asteroid (469219) 2016 HO3, the smallest and closest Earth quasi-satellite [PDF]

, 2016
A number of Earth co-orbital asteroids experience repeated transitions between the quasi-satellite and horseshoe dynamical states. Asteroids 2001 GO2, 2002 AA29, 2003 YN107 and 2015 SO2 are well-documented cases of such a dynamical behaviour.
C. D. L. F. Marcos, R. D. L. F. Marcos
semanticscholar   +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

Rotationally Resolved Spectroscopy of Asteroid Pairs: No Spectral Variation Suggests Fission is followed by Settling of Dust

, 2014
We examine the spectral properties of asteroid pairs that were disrupted in the last 2 Myrs to examine whether the site of the fission can be revealed.
Binzel, Richard P., DeMeo, Francesca, Moskovitz, Nicholas, Polishook, David   +3 more
core   +1 more source

Mid‐infrared detection and characterization of refractory inclusions in CM and CO chondrites: A non‐destructive approach for returned space samples

Meteoritics &Planetary Science, Volume 60, Issue 3, Page 544-569, March 2025.
Abstract Refractory inclusions (RIs) in chondrites are widely used as tracers of early solar system formation conditions. In the context of sample‐return missions, a non‐destructive and non‐invasive analytical tool that can rapidly detect and characterize RIs in space samples during their early phase of study is highly needed.
Jean Charlier, Alice Aléon‐Toppani, Rosario Brunetto, Jérôme Aléon, Ferenc Borondics   +4 more
wiley   +1 more source

VIS‐to‐MIR reflectance and Raman spectroscopy of the CM2 NWA 12184 carbonaceous chondrite

Meteoritics &Planetary Science, Volume 60, Issue 3, Page 570-595, March 2025.
Abstract The spectral analysis of CM meteorites can help to constrain the mineralogical composition of their parent body, the C‐type asteroids. The CM2 NWA 12184 was spectrally examined employing seven complementary techniques at different spatial resolutions, including VIS‐to‐MIR reflectance and Raman spectroscopy.
A. Galiano, F. Dirri, M. Ferrari, C. Carli, E. Bruschini, G. Filacchione, G. Piccioni, E. Palomba, S. Stefani, A. Raponi, M. Ciarniello, M. E. Palumbo, C. Scirè Scappuzzo, G. Baratta, R. G. Urso, L. Inno   +15 more
wiley   +1 more source