Results 71 to 80 of about 128,595 (322)
Predicting Asteroid Types: Importance of Individual and Combined Features
Frontiers in Astronomy and Space Sciences, 2021 Asteroid taxonomies provide a link to surface composition and mineralogy of those objects, although that connection is not fully unique. Currently, one of the most commonly used asteroid taxonomies is that of Bus-DeMeo. The spectral range covering 0.45–2.
Hanna Klimczak +7 more
doaj +1 more source
The dynamics of asteroid rotation, governed by YORP effect: the kinematic ansatz
, 2018 The main motivation of this research is the analytical exploration of the dynamics of asteroid rotation when it moves in elliptic orbit through Space.
Ershkov, Sergey V., Shamin, Roman V.
core +1 more source
Optimal design for a NEO tracking spacecraft formation [PDF]
, 2007 The following paper presents the design and methodology for developing an optimal set of spacecraft orbits for a NEO tracking mission. The spacecraft is designed to fly in close formation with the asteroid, avoiding the nonlinear gravity field produced ...
Maddock, Christie, Vasile, Massimiliano
core +1 more source
Perspective Projection of an Ellipse and an Ellipsoid for Analytical View Factor Evaluation
Heat Transfer, EarlyView.ABSTRACT Radiative view factors are fundamental quantities for evaluating radiative heat transfer between different surfaces. While analytical expressions of view factors have been evaluated for various types of basic geometries, including circular disks and spheres, extending these solutions to more complex geometries, such as ellipses and ellipsoids ...
Kaname Sasaki
wiley +1 more source
On the formation and evolution of asteroid belts and their potential significance for life
, 2012 Suggestions have been made that asteroid belts may be important both for the existence of life and perhaps even for the evolution of complex life on a planet. Using numerical models for protoplanetary discs we calculate the location of the snow line, and
Livio, Mario, Martin, Rebecca G.
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Symposium - International Astronomical Union, 1986 Using a number of different conventional observing methods of astronomy like spectrophotometry, polarimetry, IR-radiometry and UBV-photometry, physical properties of asteroids can be derived, such as diameters, spectral reflectivity and albedo. Based on observable parameters a classification in terms of taxonomic types can be made and the mineralogy of
openaire +1 more source
Mass Spectrometry Reviews, EarlyView.ABSTRACT Complex organic mixtures are found in many areas of research, such as energy, environment, health, planetology, and cultural heritage, to name but a few. However, due to their complex chemical composition, which holds an extensive potential of information at the molecular level, their molecular characterization is challenging.
Charlotte Mase +5 more
wiley +1 more source
Excitation and Depletion of the Asteroid Belt in the Early Instability Scenario [PDF]
Astronomical Journal, 2018 Containing only a few percentages of the mass of the moon, the current asteroid belt is around three to four orders of magnitude smaller than its primordial mass inferred from disk models. Yet dynamical studies have shown that the asteroid belt could not
M. Clement, S. Raymond, N. Kaib
semanticscholar +1 more source
Warme dichte Materie in Natur und Labor: Ein ungewöhnlicher Materiezustand
Physik in unserer Zeit, EarlyView.Warme dichte Materie rückt immer mehr in den Fokus, nicht nur in der Physik und Astronomie, sondern auch in den Ingenieurswissenschaften und sogar der Politik. Es handelt sich um interessante, aber auch komplizierte Zustände von Materie, die unser Verständnis ihrer Funktionsweise herausfordern.
Jan Vorberger +2 more
wiley +1 more source
The empty primordial asteroid belt [PDF]
Science Advances, 2017 The asteroid belt may be a cosmic refugee camp that formed empty but was populated by objects from across the solar system. The asteroid belt contains less than a thousandth of Earth’s mass and is radially segregated, with S-types dominating the inner ...
S. Raymond, A. Izidoro
semanticscholar +1 more source