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相关论文: On the rotation of M-type asteroids: statistical e…

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The rotational distribution of asteroids as a function of their size is used {as a diagnostic of} their physical properties and evolution. Recent photometric surveys from the Gaia mission, allowing observation of asteroids with long spin…

地球与行星天体物理 · 物理学 2025-02-28 Wen-Han Zhou , Patrick Michel , Marco Delbo , Wenchao Wang , Bonny Y. Wang , Josef Ďurech , Josef Hanuš

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

The rotational properties of asteroids provide critical information about not only their internal structure but also their collisional and thermal histories. Previous work has revealed a bimodal distribution of asteroid spin rates, dividing…

地球与行星天体物理 · 物理学 2026-03-11 T. J. Dyer , W. -H. Zhou , C. Avdellidou , M. Delbo , D. Athanasopoulos , J. Ďurech , P. Pravec

Understanding the dynamical evolution of asteroids through the secular Yarkovsky effect requires the determination of many physical properties, including the rotation period. We propose a method aimed at obtaining a robust determination of…

地球与行星天体物理 · 物理学 2025-01-14 D. E. Vavilov , B. Carry

Mean motion resonances play a fundamental role in the dynamics of the small bodies of the Solar System. The last decades of the 20th century gave us a detailed description of the dynamics as well as the process of capture of small bodies in…

地球与行星天体物理 · 物理学 2018-06-06 Tabare Gallardo

A class of asteroids, called large super-fast rotators (large SFRs), have rotation periods shorter than 2 hours and diameters larger than ~ 0.3 km. They pose challenges to the usual interior rubble-pile structure unless a relatively high…

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

Knowledge of the interior density distribution of an asteroid can reveal its composition and constrain its evolutionary history. However, most asteroid observational techniques are not sensitive to interior properties. We investigate the…

地球与行星天体物理 · 物理学 2022-10-20 Jack T Dinsmore , Julien de Wit

Main-belt asteroids have been continuously colliding with one another since they were formed. Its size distribution is primarily determined by the size dependence of asteroid strength against catastrophic impacts. The strength scaling law…

地球与行星天体物理 · 物理学 2015-06-16 Tsuyoshi Terai , Jun Takahashi , Yoichi Itoh

Solar system small bodies come in a wide variety of shapes and sizes, which are achieved following very individual evolutional paths through billions of years. This paper focuses on the reshaping process of rubble-pile asteroids driven by…

地球与行星天体物理 · 物理学 2017-08-03 Yang Yu , Derek C. Richardson , Patrick Michel

Age is a fundamental stellar property, yet for many stars it is difficult to reliably determine. For M dwarfs it has been notoriously so. Due to their lower masses, core hydrogen fusion proceeds at a much slower rate in M dwarfs than it…

太阳与恒星天体物理 · 物理学 2023-08-31 Scott G. Engle , Edward F. Guinan

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 long-term dynamical evolution of asteroid families is governed by the interplay between orbital and rotational evolution driven by thermal forces and collision. We aim to observationally trace the rotational evolution of main-belt…

地球与行星天体物理 · 物理学 2026-03-11 Gabriele Bertinelli , Wen-Han Zhou , Paolo Tanga

The rotational properties of small near-Earth asteroids (NEAs) provide crucial insights into their internal structure and collisional history. However, systematic surveys targeting metre- to decametre-sized bodies are rare, thus leaving…

地球与行星天体物理 · 物理学 2026-02-24 Miguel R. Alarcon , Javier Licandro , Miquel Serra-Ricart

Asteroids are leftover pieces from the era of planet formation that help us understand conditions in the early Solar System. Unlike larger planetary bodies that were subject to global thermal modification during and subsequent to their…

地球与行星天体物理 · 物理学 2009-06-25 Kevin J. Walsh , Patrick Michel , Derek C. Richardson

The size distribution of small asteroids in the Main Belt is assumed to be determined by an equilibrium between the creation of new bodies out of the impact debris of larger asteroids and the destruction of small asteroids by collisions…

地球与行星天体物理 · 物理学 2014-04-04 Seth A. Jacobson , Francesco Marzari , Alessandro Rossi , Daniel J. Scheeres , Donald R. Davis

M dwarfs are prime targets in the hunt for habitable worlds around other stars. This is due to their abundance as well as their small radii and low masses and temperatures, which facilitate the detection of temperate, rocky planets in orbit…

Rotation is thought to be a major factor in the evolution of massive stars, especially at low metallicity, with consequences for their chemical yields, ionizing flux and final fate. Determining the natal rotation-rate distribution of stars…

太阳与恒星天体物理 · 物理学 2015-06-12 S. E. de Mink , N. Langer , R. G. Izzard , H. Sana , A. de Koter

Stellar rotation significantly shapes the evolution of massive stars, yet the interplay of mass and metallicity remains elusive, limiting our capacity to construct accurate stellar evolution models and to better estimate the impact of…

太阳与恒星天体物理 · 物理学 2024-09-11 Weijia Sun , Cristina Chiappini

Photometric observations of asteroids show that some of them are in non-principal axis rotation state (free precession), called tumbling. Collisions between asteroids have been proposed as a possible asteroid rotation excitation mechanism.…

地球与行星天体物理 · 物理学 2013-04-29 T. Henych , P. Pravec
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