Results 91 to 100 of about 15,938 (229)

Color Variability of Asteroids in SDSS Moving Object Catalog

, 2003
We report a detection of statistically significant color variations for a sample of 7,531 multiply observed asteroids that are listed in the Sloan Digital Sky Survey Moving Object Catalog.
Azabajian, Baliunas, Binzel, Blanco, Bowell, Chapman, Clark, Degewij, Efron, Fukugita, Gammelgaard, Ivezić, Ivezić, Ivezić, Jurić, Lupton, Lupton, Magnusson, Metcalf, Milani, Mottola, Murchie, Pravec, Russell, Schober, Sekiguchi, Sheppard, Shoemaker, Szabó, Wisniewski, Wisniewski, Zappala, Zeller, Zellner, Zellner, Zellner   +35 more
core   +1 more source

CI chondrite Oued Chebeika 002 links asteroids Bennu and Ryugu to common parent body

Meteoritics &Planetary Science, EarlyView.
Abstract CI chondrites are a compositionally primitive group of meteorites that have undergone extensive aqueous alteration, providing insights into the evolution of primitive planetesimals. Oued Chebeika 002 is the most pristine CI chondrite to date.
Megan Broussard, Katharina Lodders, Paul K. Carpenter, Piers Koefoed, Karen Ziegler, Kunihiko Nishiizumi, Marc W. Caffee, Laurence A. J. Garvie, Ryan C. Ogliore, Anthony J. Irving, Bradley L. Jolliff, Kun Wang   +11 more
wiley   +1 more source

Orbital Capture of Ejecta into Periodic Orbits around Binary Asteroid (65803) Didymos

The Planetary Science Journal
The successful impact of the Double Asteroid Redirection Test (DART) spacecraft on Dimorphos enabled the first-ever extensive observation of a postimpact ejecta tail from a binary asteroid system.
Xiaoyu Fu, Flavia Saveriano, Stefania Soldini, Fabio Ferrari, Derek C. Richardson, Masatoshi Hirabayashi, Alessandro Rossi, Eugene G. Fahnestock, Tony L. Farnham, Arnold Gucsik, Stravro L. Ivanovski, Martin Jutzi, Akos Kereszturi, Jian-Yang Li, Francesco Marzari, Colby C. Merrill, Fernando Moreno, Sabina D. Raducan, Juan Luis Rizos, Gonzalo Tancredi, Josep M. Trigo-Rodriguez, Kleomenis Tsiganis, Stephan Ulamec, Yang Yu, Yun Zhang, Nancy Chabot, Andrew Rivkin, Adriano Campo Bagatin, Patrick Michel   +28 more
doaj   +1 more source

Remote geochemical sensing of asteroids [PDF]

Remote geochemical measurements with gamma-ray spectrometers and X-ray fluorescence spectrometers are discussed. These instruments have proved themselves in lunar orbit, and seem best suited to determining the elemental content of asteroid ...
Arnold, J. R.
core   +1 more source

Ryugu Reference Project: Recommendations from the Measurement Definition Team

Meteoritics &Planetary Science, EarlyView.
Abstract Sample return missions play a significant role in planetary science by providing pristine extraterrestrial materials. JAXA's Hayabusa2 and NASA's OSIRIS‐REx missions have returned samples from the C‐type asteroids Ryugu and Bennu, respectively. The chemical and mineralogical compositions of these samples closely resemble those of CI chondrites,
Tetsuya Yokoyama, Guillaume Avice, Henner Busemann, Nicolas Dauphas, Daniel P. Glavin, Ashley J. King, Thorsten Kleine, Katharina Lodders, Frederic Moynier, Maria Schönbächler, Yoshinori Takano, Kun Wang, Hikaru Yabuta, Yuma Enokido, Ryota Fukai, Shogo Tachibana, Tomohiro Usui   +16 more
wiley   +1 more source

Polarization of asteroid (387) Aquitania: the newest member of a class of large inversion angle asteroids

, 2008
We present new imaging polarimetric observations of two Main Belt asteroids, (234) Barbara and (387) Aquitania, taken in the first half of 2008 using the Dual-Beam Imaging Polarimeter on the University of Hawaii 2.2 meter telescope, located on Mauna Kea,
Alberto Cellino, Burbine, Burbine, Bus, Cellino, Cellino, Cellino, Cellino, Degtjarev, Dollfus, Gil-Hutton, Joseph Masiero, Masiero, Muinonen, Pravec, Schmidt, Shkuratov, Sunshine, Sunshine, Tedesco, Zappala, Zellner, Zolensky   +22 more
core   +1 more source

Mountain‐top spherules: Criteria to identify natural and synthetic particles

Meteoritics &Planetary Science, EarlyView.
Abstract Natural microspherules are important tracers of geologic and environmental processes in modern and ancient deposits. However, anthropogenic contamination can dilute natural collections by releasing synthetic microspherules into the environment.
M. R. Boyd, M. J. Genge
wiley   +1 more source

The effect of terrestrial weathering on the mineralogy and petrologic (sub)types of CM chondrites explored by kinetic modeling and laboratory experiments

Meteoritics &Planetary Science, EarlyView.
Abstract Terrestrial weathering alters the chemical and isotopic composition, and mineralogy, of meteorites; its effects on ordinary chondrites are well‐studied, but relatively little is known about the susceptibility of carbonaceous chondrites. We combined laboratory experiments, whereby Chwichiya 002 (C3‐ung find), Murchison (CM2 fall) and Kolang ...
Robin L. Haller, Martin R. Lee, Mark E. Hodson   +2 more
wiley   +1 more source

Sensitivity Testing of Stereophotoclinometry for the OSIRIS-REx Mission. II. Effective Observation Geometry for Digital Terrain Modeling

The Planetary Science Journal
The OSIRIS-REx mission used stereophotoclinometry (SPC) to generate digital terrain models (DTMs) of its target asteroid, Bennu. Here we present a suite of preflight tests conducted to identify the observing geometry and number of images needed to create
Eric E. Palmer, John R. Weirich, Robert W. Gaskell, Diane Lambert, Tanner Campbell, Kris Drozd, Olivier S. Barnouin, Michael G. Daly, Kenneth Getzandanner, John N. Kidd Jr., Coralie D. Adam, Dante S. Lauretta   +11 more
doaj   +1 more source

Constraining the Cratering Chronology of Vesta

, 2014
Vesta has a complex cratering history, with ancient terrains as well as recent large impacts that have led to regional resurfacing. Crater counts can help constrain the relative ages of different units on Vesta's surface, but converting those crater ...
Bottke, William F., Marchi, Simone, Morbidelli, Alessandro, O'Brien, David P., Raymond, Carol A., Russell, Christopher T., Schenk, Paul M.   +6 more
core   +1 more source