Results 21 to 30 of about 123,357 (335)
Growth of asteroids, planetary embryos, and Kuiper belt objects by chondrule accretion [PDF]
Science Advances, 2015 Chondrules, tiny spheres found in primitive meteorites, accumulate through gas drag to form asteroids and planetary embryos. Chondrules are millimeter-sized spherules that dominate primitive meteorites (chondrites) originating from the asteroid belt. The
A. Johansen +3 more
semanticscholar +1 more source
The common origin of family and non-family asteroids [PDF]
Nature Astronomy, 2018 All asteroids are currently classified as either family, originating from the disruption of known bodies1, or non-family. An outstanding question is the origin of these non-family asteroids.
S. Dermott +5 more
semanticscholar +1 more source
SAFARI: Searching Asteroids for Activity Revealing Indicators [PDF]
Publications of the Astronomical Society of the Pacific, 2018 Active asteroids behave dynamically like asteroids but display comet-like comae. These objects are poorly understood, with only about 30 identified to date.
C. O. Chandler +4 more
semanticscholar +1 more source
The first confirmation of V-type asteroids among the Mars crosser population [PDF]
, 2014 The Mars crossing region constitutes a path to deliver asteroids from the Inner Main Belt to the Earth crossing space. While both the Inner Main Belt and the population of Earth crossing asteroids contains a significant fraction of asteroids belonging to
Alvarez-Candal, A. +6 more
core +2 more sources
Volumes and bulk densities of forty asteroids from ADAM shape modeling [PDF]
, 2017 Context. Disk-integrated photometric data of asteroids do not contain accurate information on shape details or size scale. Additional data such as disk-resolved images or stellar occultation measurements further constrain asteroid shapes and allow size ...
J. Hanuš +13 more
semanticscholar +1 more source
, 2015 Asteroids and comets are remnants from the era of Solar System formation over 4.5 billion years ago, and therefore allow us to address two fundamental questions in astronomy: what was the nature of our protoplanetary disk, and how did the process of planetary accretion occur?
Fernández, Y. R. +3 more
openaire +3 more sources
Nature, 2009 The production of terrestrial andesites in subduction zones is well established. Day et al. describe two examples of meteorites (GRA 06128 and GRA 06129) that they claim to represent "an entirely new mode of generation of andesite crust compositions" on asteroids; this suggestion has wide implications for the generation of andesitic planetary crusts in
Arculus, Richard +3 more
openaire +4 more sources
Physical properties of asteroids
Вісник Астрономічної школи, 2000 The most significant data on the physical properties of main-belt and near-Earth asteroids obtained by photometric, polarimetric, spectroscopic and other techniques, including space missions «Galileo» and NEAR, are presented.
D. F. Lupishko
doaj +1 more source
Rotation Periods of Asteroids Determined With Bootstrap Convex Inversion From ATLAS Photometry
Frontiers in Astronomy and Space Sciences, 2022 The rotation period is one of the fundamental physical characteristics of asteroids. It can be determined from photometric measurements by standard methods of time-series period analysis or by creating a physical model of an asteroid with the rotation ...
Josef Ďurech +3 more
doaj +1 more source
, 2015 Asteroid photometry has three major applications: providing clues about asteroid surface physical properties and compositions, facilitating photometric corrections, and helping design and plan ground-based and spacecraft observations. The most significant advances in asteroid photometry in the past decade were driven by spacecraft observations that ...
Li, Jian Yang +4 more
openaire +2 more sources