Results 31 to 40 of about 214,518 (270)

VLT/SPHERE imaging survey of the largest main-belt asteroids: Final results and synthesis

Astronomy & Astrophysics, 2021
Context. Until recently, the 3D shape, and therefore density (when combining the volume estimate with available mass estimates), and surface topography of the vast majority of the largest (D  ≥ 100 km) main-belt asteroids have remained poorly constrained.
P. Vernazza, M. Ferrais, L. Jorda, J. Hanuš, B. Carry, M. Marsset, M. Brož, R. Fétick, M. Viikinkoski, F. Marchis, F. Vachier, A. Drouard, T. Fusco, M. Birlan, E. Podlewska-Gaca, N. Rambaux, M. Neveu, P. Bartczak, G. Dudziński, E. Jehin, P. Beck, J. Berthier, J. Castillo‐Rogez, F. Cipriani, F. Colas, C. Dumas, J. Ďurech, J. Grice, M. Kaasalainen, A. Kryszczyńska, P. Lamy, H. Le Coroller, A. Marciniak, T. Michałowski, P. Michel, T. Santana-Ros, P. Tanga, A. Vigan, O. Witasse, B. Yang, P. Antonini, M. Audejean, P. Aurard, R. Behrend, Z. Benkhaldoun, J. Bosch, A. Chapman, L. Dalmon, S. Fauvaud, Hiroko Hamanowa, H. Hamanowa, J. His, A. Jones, D. Kim, M.J. Kim, J. Krajewski, O. Labrevoir, A. Leroy, F. Livet, D. Molina, R. Montaigut, J. Oey, N. Payre, V. Reddy, P. Sabin, A. G. Sánchez, L. Socha   +66 more
semanticscholar   +1 more source

Size and Albedo Constraints for (152830) Dinkinesh Using WISE Data

The Astrophysical Journal Letters, 2023
Probing small main-belt asteroids provides insight into their formation and evolution through multiple dynamical and collisional processes. These asteroids also overlap in size with the potentially hazardous near-Earth object population and supply the ...
Kiana D. McFadden, Amy K. Mainzer, Joseph R. Masiero, James M. Bauer, Roc M. Cutri, Dar Dahlen, Frank J. Masci, Jana Pittichová, Akash Satpathy, Edward L. Wright   +9 more
doaj   +1 more source

Taxonomic Analysis of Asteroids with Artificial Neural Networks

The Astronomical Journal, 2023
We study the surface composition of asteroids with visible and/or infrared spectroscopy. For example, asteroid taxonomy is based on the spectral features or multiple color indices in visible and near-infrared wavelengths.
Nanping Luo, Xiaobin Wang, Shenghong Gu, Antti Penttilä, Karri Muinonen, Yisi Liu   +5 more
doaj   +1 more source

CASTAway: An asteroid main belt tour and survey [PDF]

Advances in Space Research, 2018
CASTAway is a mission concept to explore our Solar System's main asteroid belt. Asteroids and comets provide a window into the formation and evolution of our Solar System and the composition of these objects can be inferred from space-based remote sensing using spectroscopic techniques.
S. B. Calcutt, Tristram Warren, Benoit Carry, V. Da Deppo, Kjartan M. Kinch, P. Pravec, K. L. Donaldson Hanna, Nicolas Thomas, A. Gibbings, J. de León, Jessica Agarwal, Javier Licandro, Paul Eccleston, J.M. Barnes, Simon F. Green, Manish R. Patel, Mikael Granvik, J. Leif Jorgensen, Laurent Jorda, Rhian H. Jones, Naomi Murdoch, Ian Tosh, Joan Pau Sánchez, Aurelie Guilbert-Lepoutre, Henning Haack, Jessica A. Arnold, Fraser Clarke, Neil Bowles, Alena Probst, Benjamin T. Greenhagen, Sonia Fornasier, Thomas Andert, C. M. Marriner, Francesca E. DeMeo, Ann Carine Vandaele, Ákos Kereszturi, Andreas Nathues, Andrew S. Rivkin, Colin Snodgrass, Katherine H. Joy, Matthias Tecza, Ian Thomas, John K. Davies, Giampiero Naletto, Enzo Pascale, Enzo Pascale   +45 more
openaire   +15 more sources

On the oldest asteroid families in the main belt [PDF]

Monthly Notices of the Royal Astronomical Society, 2016
Asteroid families are groups of minor bodies produced by high-velocity collisions. After the initial dispersions of the parent bodies fragments, their orbits evolve because of several gravitational and non-gravitational effects,such as diffusion in mean-motion resonances, Yarkovsky and YORP effects, close encounters of collisions, etc.
R. C. Domingos, R. C. Domingos, Safwan Aljbaae, M. Huaman, Valerio Carruba, Valerio Carruba, David Nesvorný   +6 more
openaire   +7 more sources

The distribution of basaltic asteroids in the Main Belt [PDF]

Icarus, 2008
We present the observational results of a survey designed to target and detect asteroids whose colors are similar to those of Vesta family members and thus may be considered as candidates for having a basaltic composition. Fifty basaltic candidates were selected with orbital elements that lie outside of the Vesta dynamical family.
Ronald Fevig, Eric Gaidos, Eric Gaidos, Robert Jedicke, David Nesvorný, Mark Willman, Željko Ivezić, Nicholas Moskovitz   +7 more
openaire   +3 more sources

Determining the Pyroxene Mineralogies of Vestoids

The Planetary Science Journal, 2023
Bulk pyroxene compositions were calculated for a number of V-type asteroid spectra using formulae derived by Burbine et al. These formulae were derived by analyzing HED (howardite, eucrite, and diogenite) meteorites and calculate bulk Fs (mol%) and Wo ...
T. H. Burbine, P. C, Buchanan, M. J. Jercinovic, R. C. Greenwood   +3 more
doaj   +1 more source

The Challenge of Measuring Asteroid Masses with Gaia DR2 Astrometry

The Planetary Science Journal, 2023
The Gaia second data release (DR2) contains high-accuracy astrometric measurements of thousands of solar system bodies. These measurements raise the possibility of determining asteroid masses by modeling scattering events between massive objects observed
Zachary Murray
doaj   +1 more source

The Flux Distribution and Sky Density of 25th Magnitude Main Belt Asteroids [PDF]

Astronomical Journal, 2019
Digital tracking enables telescopes to detect asteroids several times fainter than conventional techniques. We describe our optimized methodology to acquire, process, and interpret digital tracking observations, and we apply it to probe the apparent ...
A. Heinze, Joseph Trollo, S. Metchev
semanticscholar   +1 more source

The Mid-plane of the Main Asteroid Belt [PDF]

The Astronomical Journal, 2018
Abstract We measure the mid-plane of the main asteroid belt by using the observational data of a nearly complete and unbiased sample of asteroids and find that it has inclination and longitude of ascending node
Saverio Cambioni, Renu Malhotra
openaire   +3 more sources