Results 1 to 10 of about 1,252 (148)
Gaia search for early-formed andesitic asteroidal crusts [PDF]
Context. Andesitic meteorites are among the oldest achondrites known to date. They record volcanic events and crust formation episodes in primordial planetesimals that took place about 4.565 Myr ago. However, no analogue for these meteorites has been found in the asteroid population to date. Aims.
Marjorie Galinier +4 more
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An optimal Mars Trojan asteroid search strategy [PDF]
Trojan asteroids are minor planets that share the orbit of a planet about the Sun and librate around the L4 or L5 Lagrangian points of stability. Although only three Mars Trojans have been discovered, models suggest that at least ten times this number should exist with diameters >= 1 km. We derive a model that constrains optimal sky search areas and
M. Todd +3 more
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Experience in Asteroid Search using Astrometrica Software [PDF]
The present work of this research consists of the analysis of telescopic images provided by the International Astronomical Search Collaboration (IASC) to find asteroids that can be named. The concern in searching for asteroids helps the scientific community that promotes the collaboration of young students and astronomy fans get experience in finding ...
Junior Ascencio-Moran +3 more
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DISCOVERIES OF NEW ASTEROIDS UNDER THE INTERNATIONAL ASTEROID SEARCH COLLABOARATION
In the paper are presented results of remote asteroid observations made during monitoring campaigns that were part of the International Asteroid Search Collaboration Program for tracking and detection of asteroids. The methodology for detecting asteroids and the process of confirming the discoveries and naming the new objects by the International ...
V. Radeva
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Earth Trojan Asteroids: A Study in Support of Observational Searches [PDF]
Observational searches for asteroids orbiting near Earth's triangular Lagrange points face unique obstacles. A population of such asteroids would occupy a large projected area on the sky (possibly hundreds of square degrees) and is not favorably placed with respect to the Sun. Here we examine the properties of synthetic populations of Earth ``Trojans''
Paul Wiegert
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AsteroidFinder – the space-borne telescope to search for NEO Asteroids [PDF]
This paper presents the mission profile as well as the optical configuration of the space-borne AsteroidFinder telescope. Its main objective is to retrieve asteroids with orbits interior to Earth’s orbit. The instrument requires high sensitivity to detect asteroids with a limiting magnitude of equal or larger than 18.5mag (V-Band) and astrometric ...
S. Mottola +6 more
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A Deep Search for Venus Co-orbital Asteroids
Venus has recently been discovered to share its orbit with a ring of dust. This circumsolar ring of dust was imaged independently by two spacecraft: HELIOS A/B [1] and STEREO A/B [2]. HELIOS was able to estimate the radial and latitudinal extent of the ring by flying through it, while STEREO imaged its structure from 1 AU. Earlier work by Pokorný &
Petr Pokorný
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The search for primordial quark nuggets among near Earth asteroids [PDF]
Primordial Quark Nuggets,remnants of the quark-hadron phase transition, may be hiding most of the baryon number in superdense chunks have been discussed for years always from the theoretical point of view. While they seemed originally fragile at intermediate cosmological temperatures, it became increasingly clear that they may survive due to a variety ...
J. E. Horvath
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Moon search algorithms for NASA's Dawn Mission to asteroid Vesta [PDF]
A moon or natural satellite is a celestial body that orbits a planetary body such as a planet, dwarf planet, or an asteroid. Scientists seek understanding the origin and evolution of our solar system by studying moons of these bodies. Additionally, searches for satellites of planetary bodies can be important to protect the safety of a spacecraft as it ...
Nargess Memarsadeghi +6 more
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A NEAR-INFRARED SEARCH FOR SILICATES IN JOVIAN TROJAN ASTEROIDS [PDF]
We obtained near-infrared (0.8 - 2.5 micron) spectra of seven Jovian Trojan asteroids that have been formerly reported to show silicate-like absorption features near 1 micron. Our sample includes the Trojan (1172) Aneas, which is one of three Trojans known to possess a comet-like 10 micron emission feature, indicative of fine-grained silicates.
Bin Yang, David Jewitt
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