Results 81 to 90 of about 1,838 (234)

Pre-impact Albedo Map and Photometric Properties of the (65803) Didymos Asteroid Binary System from DART and Ground-based Data

The Planetary Science Journal
This study provides a pre-impact map of the albedo of the Double Asteroid Redirection Test (DART) target Dimorphos corrected for all the effects of viewing geometry, as well as an estimate of photometric roughness for the hemisphere imaged by DART. Other
B. J. Buratti, J. Pittichová, I. Mishra, J. K. Hillier, J. A. Mosher, S. R. Chesley, J. M. Sunshine, O. Barnouin, C. M. Ernst, R. T. Daly, J-Y Li, A. F. Cheng, A. S. Rivkin, J. Rizos   +13 more
doaj   +1 more source

Visible, near‐, and thermal infrared spectra of asteroid Bennu samples: Relationship to and implications for remote sensing of carbonaceous asteroids

Meteoritics &Planetary Science, EarlyView.
Abstract Remote spectroscopy is used to characterize the mineralogy and infer the history of planetary bodies. Carbonaceous asteroids, such as B‐type (101955) Bennu, represent the earliest stages of planet formation. B types have a blue (negative) spectral slope and comprise <5% of asteroids.
V. E. Hamilton, E. A. Cloutis, R. E. Milliken, P. Haenecour, D. R. Golish, K. J. Domanik, T. J. McCoy, L. P. Keller, A. A. Simon, H. H. Kaplan, C. A. Goodrich, S. A. Sandford, D. Applin, T. Hiroi, D. H. Hill, N. G. Lunning, F. M. McCubbin, S. A. Eckley, C. J. Snead, E. H. Blumenfeld, J. E. Aebersold, C. Schultz, N. Bowles, K. A. Shirley, S. S. Russell, J. J. Barnes, T. J. Zega, D. N. DellaGiustina, A. J. Ryan, D. P. Glavin, J. P. Dworkin, H. C. Connolly Jr., D. S. Lauretta   +32 more
wiley   +1 more source

The Deployment of Scientific Packages to Asteroid Surfaces

, 2014
A strategy for the deployment of landers to asteroid surfaces is described. The landing pods are scientific packages with no guidance, navigation and control system, and no specific landing apparatus, so as to minimize onboard platform and maximize ...
Tardivel, Simon Charles Vincent
core   +1 more source

The Discovery and Characterization of Earth-crossing Asteroid 2024 YR4

The Astrophysical Journal Letters
We describe observations and physical characteristics of Earth-crossing asteroid 2024 YR _4 , discovered on 2024 December 27 by the Asteroid Terrestrial-impact Last Alert System.
Bryce T. Bolin, Josef Hanuš, Larry Denneau, Roberto Bonamico, Laura-May Abron, Marco Delbo, Josef Ďurech, Robert Jedicke, Leo Y. Alcorn, Aleksandar Cikota, Swayamtrupta Panda, Henrique Reggiani   +11 more
doaj   +1 more source

The role of composition in the spectral evolution of carbonaceous asteroids as informed by Bennu sample return

Meteoritics &Planetary Science, EarlyView.
Abstract Near‐Earth rubble‐pile asteroids Bennu and Ryugu are part of the carbonaceous taxonomic complex (C‐complex), and samples returned from both bodies resemble the most aqueously altered carbonaceous chondrites. However, telescopic and spacecraft visible–near infrared (VIS–NIR) reflectance spectra of Ryugu exhibit a red (positive) spectral slope ...
Ralph E. Milliken, Takahiro Hiroi, Victoria E. Hamilton, Cody D. Schultz, Ed A. Cloutis, Hannah H. Kaplan, Melissa K. Kontogiannis, Nathalia Vega‐Santiago, Dani N. DellaGiustina, Harold C. Connolly Jr., Dante S. Lauretta   +10 more
wiley   +1 more source

Asteroid Spectra and Machine Learning [PDF]

, 2020
The aim of this thesis is to explore applications of machine learning to the study of asteroid spectra, and as such, its research question can be summarized as: How can asteroid spectra be analyzed using machine learning? The question is explored through
Hietala, Hilppa
core  

Reactive Molecular Dynamics Simulations of Micrometeoroid Bombardment for Space Weathering of Asteroid (162173) Ryugu

The Astrophysical Journal
Remote sensing observations by Hayabusa2 and laboratory measurements have revealed that the phyllosilicates on asteroid (162173) Ryugu are dehydrated/dehydroxylated due to space weathering.
Daigo Shoji
doaj   +1 more source

Solar wind as the origin of rapid reddening of asteroid surfaces

, 2009
International audienceA comparison of the laboratory reflectance spectra of meteorites with observations of asteroids revealed that the latter are much 'redder', with the spectral difference explained by 'space weather-ing' 1,2 , though the actual ...
R. P. Binzel, Binzel, R., M. Birlan, Birlan, M., A. Rossi, Vernazza, P., Rossi, A., P. Vernazza, M. Fulchignoni, Fulchignoni, M.   +9 more
core   +1 more source

Granular processes on Itokawa, a small near-Earth asteroid: implications for resource utilization [PDF]

, 2008
Crucial questions for possible utilization of Near Earth Asteroids include how to break asteroid materials down to particle sizes that can be processed.
Miyamoto, Hideaki, Furfaro, Roberto, Fink, Wolfgang, Wolfgang Fink, Roberto Furfaro, Kargel, Jeffrey S., Hideaki Miyamoto, Jeffrey S. Kargel   +7 more
core   +1 more source

An Updated Shape Model of Dimorphos from DART Data

The Planetary Science Journal
Dimorphos was the target of the Double Asteroid Redirection Test (DART) mission. This paper summarizes the properties of an updated shape model of Dimorphos, describes the differences between the updated shape model and an earlier version published by ...
R. Terik Daly, Carolyn M. Ernst, Olivier S. Barnouin, Robert W. Gaskell, Hari Nair, Harrison Agrusa, Nancy L. Chabot, Andrew F. Cheng, Elisabetta Dotto, Elena Mazzotta Epifani, Raymond C. Espiritu, Tony L. Farnham, Eric E. Palmer, Petr Pravec, Andrew S. Rivkin, Dany C. Waller, Angelo Zinzi, the DART and LICIACube teams   +17 more
doaj   +1 more source