Results 21 to 30 of about 7,841,985 (153)

Space Weathering in the Main Asteroid Belt: The Big Picture [PDF]

The Astrophysical Journal, 2006
The optical properties of silicate-rich asteroidal surfaces (namely, S-complex asteroids) evolve over time under the influence of several processes, known as "space weathering" (SW), and are amply analyzed in laboratory experiments. A first estimate of the spectral reddening rate, due to SW, on family S-type main-belt asteroids (MBAs; Jedicke et al ...
Lazzarin M., Marchi S., Moroz L. V., Brunetto R., Magrin S., PAOLICCHI, PAOLO, Strazzulla G.   +6 more
openaire   +5 more sources

Detectability of the Yarkovsky Effect in the Main Belt

The Planetary Science Journal, 2023
We attempt to detect a signal of Yarkovsky-related acceleration in the orbits of 134 main belt asteroids (MBAs) we observed with the University of Hawai’i 88 inch telescope, supplemented with observations publicly available from the Minor Planet Center ...
Denise Hung, David J. Tholen, Davide Farnocchia, Federica Spoto   +3 more
doaj   +1 more source

Masses of asteroids and total mass of the main asteroid belt [PDF]

Proceedings of the International Astronomical Union, 2015
AbstractAn estimation of the mass of the main asteroid belt was made on the basis of the new version of EPM2014 ephemerides of the Institute of Applied Astronomy of Russian Academy of Sciences using about 800000 positional observations of planets and spacecraft.
E. V. Pitjeva, N. P. Pitjev
openaire   +1 more source

Polarimetric survey of main-belt asteroids [PDF]

Astronomy & Astrophysics, 2011
Aims. We present the first results of a polarimetric survey of main-belt asteroids at Complejo Astronomico El Leoncito (Casleo), San Juan, Argentina. The aims of this survey are to increase the database of asteroid polarimetry, to estimate diversity in polarimetric properties of asteroids that belong to different taxonomic classes, and to search for ...
R. Gil-Hutton, M. Cañada-Assandri
openaire   +3 more sources

Mid-IR Observations of IRAS, AKARI, WISE/NEOWISE, and Subaru for Large Icy Asteroid (704) Interamnia: A New Perspective of Regolith Properties and Water Ice Fraction

The Astrophysical Journal, 2023
(704) Interamnia is one of the largest asteroids located in the outer main-belt region, which may contain a large amount of water ice underneath its surface.
Jiang Haoxuan, Ji Jianghui, Yu Liangliang, Yang Bin, Hu Shoucun, Zhao Yuhui   +5 more
doaj   +1 more source

Active asteroids: mystery in the Main Belt [PDF]

Proceedings of the International Astronomical Union, 2005
Classically, comets from the outer solar system (beyond the orbit of Neptune), are expected to be icy, and thus active near the Sun, while asteroids in the inner solar system (interior to the orbit of Jupiter) are expected to be relatively ice-deficient, and thus inert.
Henry H. Hsieh, David Jewitt
openaire   +1 more source

Inner main belt asteroids in Slivan states?

, 2015
Context. The spin state of ten asteroids in the Koronis family has previously been determined. Surprisingly, all four asteroids with prograde rotation were shown to have spin axes nearly parallel in the inertial space.
D. Vokrouhlický, J. Vraštil
core   +1 more source

Distant Formation and Differentiation of Outer Main Belt Asteroids and Carbonaceous Chondrite Parent Bodies

AGU Advances, 2022
Volatile compositions of asteroids provide information on the Solar System history and the origins of Earth's volatiles. Visible to near‐infrared observations at wavelengths of 4) and low temperatures (10 au) and could be transported to their current ...
H. Kurokawa, T. Shibuya, Y. Sekine, B. L. Ehlmann, F. Usui, S. Kikuchi, M. Yoda   +6 more
doaj   +1 more source

Photometry of 8 main belt asteroids

, 2012
VizieR online Data Catalogue associated with article published in journal Astronomy & Astrophysics with title 'Photometry and models of selected main-belt asteroids. IX. Introducing Interactive Service for Asteroid Models (ISAM).' (bibcode: 2012A&
Laboratoire d'Astrophysique de Marseille, OAMP, Universite Aix-Marseille and CNRS, Antonini, P., Bernasconi, L., Fagas, M., Fauvaud, M., Michałowski, J., Groupe Européen d'Observation Stellaire (GEOS), Santana-Ros, T., University of Edinburgh, Technical University of Denmark, Borczyk, W., Hein - Bertelsen, Rosina, Esseiva, N., Crippa, R., Wucher, H., A. Mickiewicz University, Karazin Kharkiv National University, Observatoire du Bois de Bardon, Michałowski, M.J., Roy, R., University of Oulu, Kryszczyńska, A., Polińska, M., Aix-Marseille Université, Colas, F., Ferreira, D.D.M., Behrend, R., Hirsch, R., Stazione Astronomica di Sozzago, Zafar, T., Fauvaud, S., Kwiatkowski, T., Agrupación Astronómica de Sabadell, Bembrick, C., Santacana, G., Manzini, F., Les Engarouines Observatory, Blauvac Observatory, Kajava, J.J.E., Coloma, J., Michałowski, T., Starczewski, S., Bartczak, P., Paschke, A., Observatoire de Bédoin, IMCCE, Paris Observatory, UMR 8028, CNRS, Velichko, F., Poncy, R., Kamiński, K., Higgins, D., Sobkowiak, K., Geneva Observatory, Forte Software, Marciniak, A., Association AstroQueyras, Polish Academy of Sciences, Astronomy, Stasik, M.   +57 more
core   +1 more source

V-type Asteroids as the Origin of Mesosiderites

The Planetary Science Journal, 2023
We present the results of a campaign of hypervelocity impact experiments on natural mesosiderite targets, using representative main asteroid belt impact speeds. The objective is to document further the surface evolution of iron-rich asteroids.
Guy Libourel, Pierre Beck, Akiko M. Nakamura, Pierre Vernazza, Clement Ganino, Patrick Michel   +5 more
doaj   +1 more source