Results 11 to 20 of about 122,293 (270)
Volumes and bulk densities of forty asteroids from ADAM shape modeling [PDF]
, 2017 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 estimates.
Delbo', Marco +13 more
core +5 more sources
Mineralogy and Surface Composition of Asteroids [PDF]
, 2015 Methods to constrain the surface mineralogy of asteroids have seen considerable development during the last decade with advancement in laboratory spectral calibrations and validation of our interpretive methodologies by spacecraft rendezvous missions ...
Burbine, Thomas H. +4 more
core +2 more sources
, 2015 Some asteroids eject dust, producing transient, comet-like comae and tails; these are the active asteroids. The causes of activity in this newly-identified population are many and varied.
Agarwal, Jessica +2 more
core +2 more sources
Ammonium salts are a reservoir of nitrogen on a cometary nucleus and possibly on some asteroids [PDF]
Science, 2020 Ammonium salts on comet 67P The distribution of carbon and nitrogen in the Solar System is thought to reflect the stability of carbon- and nitrogen-bearing molecules when exposed to the heat of the forming Sun. Comets have a low nitrogen-to-carbon ratio,
O. Poch +31 more
semanticscholar +1 more source
The Tarda Meteorite: A Window into the Formation of D-type Asteroids
Astrophysical Journal Letters, 2021 Dynamic models of solar system evolution suggest that D-type asteroids formed beyond Saturn's orbit and represent invaluable witnesses of the prevailing conditions in the outer solar system.
Y. Marrocchi, G. Avice, J. Barrat
semanticscholar +1 more source
Annual Review of Astronomy and Astrophysics, 2018 The moniker rubble pile is typically applied to all Solar System bodies >200 m and
K. Walsh
semanticscholar +1 more source
Collisional formation of top-shaped asteroids and implications for the origins of Ryugu and Bennu
Nature Communications, 2020 Asteroid shapes and hydration levels can serve as tracers of their history and origin. For instance, the asteroids (162173) Ryugu and (101955) Bennu have an oblate spheroidal shape with a pronounced equator, but contain different surface hydration levels.
P. Michel +16 more
semanticscholar +1 more source
Migration of D-type asteroids from the outer Solar System inferred from carbonate in meteorites [PDF]
Nature Astronomy, 2019 Recent dynamical models of Solar System evolution and isotope studies of rock-forming elements in meteorites have suggested that volatile-rich asteroids formed in the outer Solar System beyond Jupiter’s orbit, despite being currently located in the main ...
W. Fujiya +8 more
semanticscholar +1 more source
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
Ancient and primordial collisional families as the main sources of X-type asteroids of the inner main belt [PDF]
Astronomy & Astrophysics, 2019 Aims. The near-Earth asteroid population suggests the existence of an inner main belt source of asteroids that belongs to the spectroscopic X complex and has moderate albedos. The identification of such a source has been lacking so far. We argue that the
M. Delbo’ +2 more
semanticscholar +1 more source