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相关论文: Asteroids dimensions and the Truncated Pareto dist…

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The Pareto probability distribution is widely applied in different fields such us finance, physics, hydrology, geology and astronomy. This note deals with an application of the Pareto distribution to astrophysics and more precisely to the…

天体物理学 · 物理学 2011-09-20 Lorenzo Zaninetti , Mario Ferraro

In order to fully understand the shapes of asteroids families in the 3-dimensional space of the proper elements $(a_{\rm p}, e_{\rm p}, \sin I_{\rm p})$ it is necessary to compare observed asteroids with N-body simulations. To this point,…

地球与行星天体物理 · 物理学 2018-10-10 Miroslav Brož , Alessandro Morbidelli

The orbital distributions of dust particles in interplanetary space are inferred from several meteoroid data sets under the constraints imposed by the orbital evolution of the particles due to the planetary gravity and Poynting-Robertson…

地球与行星天体物理 · 物理学 2019-02-11 Valeri V. Dikarev , Eberhard Grün , William J. Baggaley , David P. Galligan , Markus Landgraf , Rüdiger Jehn

Context. To investigate the distribution of rotation periods of asteroids from different regions of the Solar System and distribution of diameters of near-Earth asteroids (NEAs). Aims. Verify if nonextensive statistics satisfactorily…

地球与行星天体物理 · 物理学 2012-05-29 Alberto S. Betzler , Ernesto P. Borges

The distribution of asteroid sizes by semimajor axes and the distribution of the number of asteroids by albedo values for separate families are used to selection the asteroid families more clearly. An analysis of the families identified by…

地球与行星天体物理 · 物理学 2016-02-10 A. M. Kazantsev , L. V. Kazantseva

Recently it could be shown ( that the impact crater size-frequency distribution of Pluto (based on an analysis of first images obtained by the recent New Horizons flyby) follows a power law alpha = 2.4926 in the interval of diameter (D)…

地球与行星天体物理 · 物理学 2015-12-16 L. Zaninetti , F. Scholkmann

In the absence of dense photometry for a large population of Near Earth Objects (NEOs), the best method of obtaining a shape distribution comes from sparse photometry and partial lightcurves. We have used 867 partial lightcurves obtained by…

地球与行星天体物理 · 物理学 2019-04-10 Andrew McNeill , Joseph L. Hora , Annika Gustafsson , David E. Trilling , Michael Mommert

We perform statistical wavelet analysis of the Main Belt asteroids, seeking statistically significant asteroid families. The goal is to test the new wavelet analysis algorithm and to compare its results with more traditional methods like…

地球与行星天体物理 · 物理学 2020-07-22 R. V. Baluev , E. I. Rodionov

Context: Large all-sky surveys provide us with a lot of photometric data that are sparse in time (typically few measurements per night) and can be potentially used for the determination of shapes and rotational states of asteroids. The…

地球与行星天体物理 · 物理学 2016-11-30 Helena Cibulková , Josef Ďurech , David Vokrouhlický , Mikko Kaasalainen , Dagmara A. Oszkiewicz

This study examines the rotational characteristics of asteroids through statistical modeling of the diameter-period relationship. A statistical evaluation of the diameter-period relationship was conducted using a dataset of 34,326…

地球与行星天体物理 · 物理学 2025-08-26 Maryam Nastaran , Atila Poro , Raziyeh Hosseini , Matin Najarzadeh

We discuss optical colors of 10,592 asteroids with known orbits selected from a sample of 58,000 moving objects observed by the Sloan Digital Sky Survey (SDSS). This is more than ten times larger sample that includes both orbital parameters…

天体物理学 · 物理学 2008-11-26 Z. Ivezic , R. H. Lupton , M. Juric , S. Tabachnik , T. Quinn , J. E. Gunn , G. R. Knapp , C. M. Rockosi , J. Brinkmann

Asteroid families form as a result of large-scale collisions among main belt asteroids. The orbital distribution of fragments after a family-forming impact could inform us about their ejection velocities. Unfortunately, however, orbits…

地球与行星天体物理 · 物理学 2016-02-16 Valerio Carruba , David Nesvorný

By analyzing brightness variation with ecliptic longitude and using the Lowell Observatory photometric database, we estimate spin-axis longitudes for more than 350 000 asteroids. Hitherto, spin-axis longitude estimates have been made for…

地球与行星天体物理 · 物理学 2015-06-17 E. Bowell , D. A. Oszkiewicz , L. H. Wasserman , K. Muinonen , A. Penttilä , D. E. Trilling

The asteroid belt is a unique source of information on some of the most important questions facing solar system science. These questions include the sizes, numbers, types and orbital distributions of the planetesimals that formed the…

地球与行星天体物理 · 物理学 2024-11-20 Stanley F. Dermott , Dan Li , Apostolos A. Christou

Gaia Data Release 2 includes observational data for 14,099 pre-selected asteroids. From the sparsely sampled G band photometry, we derive lower-limit lightcurve amplitudes for 11,665 main belt asteroids in order to provide constraints on…

地球与行星天体物理 · 物理学 2018-09-12 Michael Mommert , Andrew McNeill , David E. Trilling , Nicholas Moskovitz , Marco Delbo'

Tens of thousands of sparse-in-time lightcurves from astrometric projects are publicly available. We investigate these data and use them in the lightcurve inversion method to derive new asteroid models. By having a greater number of models…

In this work we aim to constrain the slope of the size distribution of main-belt asteroids, at their primordial state. To do so we turn out attention to the part of the main asteroid belt between 2.82 and 2.96~AU, the so-called "pristine…

地球与行星天体物理 · 物理学 2017-06-08 Georgios Tsirvoulis , Alessandro Morbidelli , Marco Delbo , Kleomenis Tsiganis

A statistical analysis of brightness variability of asteroids reveals how their shapes evolve from elongated to rough spheroidal forms, presumably driven by impact-related phenomena. Based on the Sloan Digital Sky Survey Moving Object…

天体物理学 · 物理学 2009-11-13 Gyula M. Szabo , Laszlo L. Kiss

Multi-epoch Spitzer Space Telescope 24 micron data is utilized from the MIPSGAL and Taurus Legacy surveys to detect asteroids based on their relative motion. These infrared detections are matched to known asteroids and rotationally averaged…

A considerable amount of information regarding the processes that occurred during the accretion of the early planetesimals is still present among the small bodies of our solar system. A review of our current knowledge of the density of…

地球与行星天体物理 · 物理学 2015-06-04 Benoit Carry
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