Results 111 to 120 of about 8,179,561 (212)

Brownian Motion of Main-belt Asteroids on Human Timescales

The Planetary Science Journal
High-precision astrometric data on main-belt asteroids (MBAs) enable new inferences on the gravitational and nongravitational forces present in this region.
Gary M. Bernstein
doaj   +1 more source

Spectral and mineralogical characterization of inner main-belt V-type asteroids

, 2011
Context. V-type asteroids in the inner main belt are thought to be genetically related to (4) Vesta as collisional fragments. We investigate their relationship with Vesta observing putative V-type asteroids. Aims.
M. C. De Sanctis, D. Lazzaro, S. Marchi, M. T. Capria, E. Ammannito, A. Migliorini, G. Filacchione, F. Luzia Jasmin   +7 more
core   +1 more source

WISE Albedos for Tens of Thousands of Main Belt Asteroids

, 2010
Using thermal IR data from the Wide-field Infrared Survey Explorer (WISE) mission we have calculated diameters for tens of thousands of previously known Main Belt asteroids.
Mueller, M., Cutri, R., WISE Science Team, [No Value], Walker, R., Wright, E., Masiero, Joseph R., McMillan, R. S., Mainzer, A. K., Delbo, M., Grav, T., Bauer, J., Dailey, J.   +11 more
core   +1 more source

Taxonomy of 14 042 asteroids from Gaia DR3 reflectance spectra

Astronomy & Astrophysics
Context. Asteroid reflectance spectra provide key constraints on surface composition. Gaia Data Release 3 (DR3) enables the study of 60 518 asteroids through near-ultraviolet (NUV) to visible reflectance spectra. Aims.
Tinaut-Ruano F., Carry B., Galinier M., Mahlke M., Sergeyev A.   +4 more
doaj   +1 more source

Testing the Icy Pebble Accretion Hypothesis with Primordial Main-belt Asteroids

The Astrophysical Journal
Large main-belt asteroids (diameter D  ≳ 120 km) exhibit a surface composition gradient as a function of heliocentric distance, ranging from anhydrous bodies to those rich in hydrated and, possibly, ammoniated materials. Their primordial nature holds key
Jinfei Yu, Hiroyuki Kurokawa, Tetsuo Taki   +2 more
doaj   +1 more source

On the spatial distribution of main belt asteroids

, 2013
International audienceWe investigate here the distribution of main belt asteroids in the space with respect to the ecliptic-equinox J2000. We identify and confirm a sinusoidal behaviour of this distribution, which disappears when the inclination is given
Souami, Damya, Lemaître, A., Souchay, Jean   +2 more
core   +1 more source

Three Fast-spinning Medium-sized Hilda Asteroids Uncovered by TESS

The Astrophysical Journal Letters
Hilda asteroids, which orbit in a 3:2 resonance with Jupiter, serve as key indicators of dynamical processes in the early solar system. Their spin rates, an important probe of these mechanisms, can constrain their density and collisional evolution ...
Nóra Takács, Csaba Kiss, Róbert Szakáts, Emese Plachy, Csilla E. Kalup, Gyula M. Szabó, László Molnár, Krisztián Sárneczky, Róbert Szabó, Attila Bódi, András Pál   +10 more
doaj   +1 more source

CCD observations of Outer-belt asteroids

, 1993
Outer-belt asteroids (Trojan, Hilda and Cybele groups) have been proposed to represent a primordial asteroidal population, with shapesnot significantly altered since the formation of the solar system.
Neukum, G., Gonano-Beurer, M., Mottola, S., Hoffmann, H.   +3 more
core  

Asteroid size distributions for the main belt and for asteroid families [PDF]

Bulletin of Taras Shevchenko National University of Kyiv. Astronomy, 2017
A. Kazantzev, L. Kazantzeva
openaire   +1 more source

3 μm Phase Curves of Main-belt Asteroids from NEOWISE Photometry

The Planetary Science Journal
The shapes of asteroid phase curves are influenced by the physical properties of asteroid surfaces. The variation of an asteroid’s brightness as a function of the solar phase angle can tell us about surface properties such as grain size distribution ...
Matthew Varakian, Nancy Chanover, Joseph Masiero, Dagmara Oszkiewicz   +3 more
doaj   +1 more source