中文
相关论文

相关论文: The young Adelaide family: Possible sibling to Dat…

200 篇论文

The Karma asteroid family is a group of primitive asteroids in the middle part of the main belt, just at the outer edge of the 3J:1A mean-motion resonance. We obtained the list of the family members with 317 asteroids and estimated that it…

地球与行星天体物理 · 物理学 2020-12-07 Debora Pavela , Bojan Novaković , Valerio Carruba , Viktor Radović

(1270) Datura is the largest member of a very young asteroid cluster that was thought to be broken-up 0.45 Myr ago. The light-curve and the rotation-resolved reflectance spectra (0.6 um - 1.0 um) were observed in order to find "fresh"…

天体物理学 · 物理学 2009-11-13 Naruhisa Takato

The so-called Nysa-Polana complex of asteroids is a diverse and widespread group. It appears to be two overlapping families of different asteroid taxonomies: (44) Nysa is an E-type asteroid with the lowest number in the midst of a…

地球与行星天体物理 · 物理学 2013-05-14 Kevin J. Walsh , Marco Delbó , William F. Bottke , David Vokrouhlický , Dante S. Lauretta

An asteroid pair can be described as two asteroids with highly similar heliocentric orbits that are genetically related but not gravitationally bound. They can be produced by asteroid collisions or rotational fission. Although over 200…

地球与行星天体物理 · 物理学 2021-11-03 Ihor Kyrylenko , Yurij N. Krugly , Oleksiy Golubov

The two and three body mean motion resonances with Jupiter and Mars (and possible with Earth) may have significant effect on dynamics of very young close asteroids pairs and families. The most known example is influence 9:16 resonance with…

地球与行星天体物理 · 物理学 2020-09-11 A. Rosaev , M. Galiazzo , E. Plávalová

Asteroid families are formed as the result of collisions. Large fragments are ejected with speeds of the order of the escape velocity from the parent body. After the family formation, the fragments' orbits evolve in the space of proper…

地球与行星天体物理 · 物理学 2018-04-03 V. Carruba , D. Vokrouhlický , B. Novakovic

In the last decade, thanks to the development of sophisticated numerical codes, major breakthroughs have been achieved in our understanding of the formation of asteroid families by catastrophic disruption of large parent bodies. In this…

地球与行星天体物理 · 物理学 2016-08-31 Patrick Michel , Derek C. Richardson , Daniel D. Durda , Martin Jutzi , Erik Asphaug

Asteroid families with ages younger than $1$ Myr offer an interesting possibility of studying the outcomes of asteroid disruptions that are little modified by subsequent evolutionary processes. We analyze a very young asteroid family…

地球与行星天体物理 · 物理学 2021-10-13 David Vokrouhlický , Miroslav Brož , Bojan Novaković , David Nesvorný

Ceres is the largest and most massive body in the asteroid main belt. Observational data from the Dawn spacecraft reveal the presence of at least two impact craters about 280~km in diameter on the Ceres surface, that could have expelled a…

地球与行星天体物理 · 物理学 2016-02-24 V. Carruba , D. Nesvorný , S. Marchi , S. Aljbaae

The Rafita asteroid family is an S-type group located in the middle main belt, on the right side of the 3J:-1A mean-motion resonance. The proximity of this resonance to the family left side in semi-major axis caused many former family…

空间物理 · 物理学 2017-05-24 S. Aljbaae , V. Carruba , J. R. Masiero , R. C. Domingos , M. Huaman

Asteroids formed in a dynamically quiescent disk but their orbits became gravitationally stirred enough by Jupiter to lead to high-speed collisions. As a result, many dozen large asteroids have been disrupted by impacts over the age of the…

地球与行星天体物理 · 物理学 2016-08-31 D. Nesvorny , M. Broz , V. Carruba

We present the results of our search for a dynamical family around the active asteroid P/2012F5 (Gibbs). By applying the hierarchical clustering method, we discover an extremely compact 9-body cluster associated with P/2012F5. The…

地球与行星天体物理 · 物理学 2014-01-14 Bojan Novakovic , Henry H. Hsieh , Alberto Cellino , Marco Micheli , Marco Pedani

The Clarissa family is a small collisional family composed of primitive C-type asteroids. It is located in a dynamically stable zone of the inner asteroid belt. In this work we determine the formation age of the Clarissa family by modeling…

地球与行星天体物理 · 物理学 2020-09-15 Vanessa C. Lowry , David Vokrouhlicky , David Nesvorny , Humberto Campins

We explore the hypothesis that the Eureka family of sub-km asteroids in the L5 region of Mars could have formed in a collision. We estimate the size distribution index from available information on family members; model the orbital…

地球与行星天体物理 · 物理学 2017-06-21 Apostolos A. Christou , Galin Borisov , Aldo Dell'Oro , Alberto Cellino , Stefano Bagnulo

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…

地球与行星天体物理 · 物理学 2019-04-17 Marco Delbo , Chrysa Avdellidou , Alessandro Morbidelli

The small ($\le$ 135 km mean radius) saturnian satellites are closely related to the rings and together they constitute a complex dynamical system where formation and destruction mechanisms compete against each other. We model the cratering…

地球与行星天体物理 · 物理学 2019-10-03 N. L. Rossignoli , R. P. Di Sisto , M. Zanardi , A. Dugaro

The main belt, the region between the orbits of Mars and Jupiter, is home to more than 1 million asteroids. These asteroids form orbital groups, (i.e., asteroid families formed by collisions) and also spectral groups (taxonomies) with…

地球与行星天体物理 · 物理学 2026-03-25 Michael Vávra , Miroslav Brož

The number of asteroids with accurately determined orbits increases fast. The catalogs of asteroid physical observations have also increased, although the number of objects is still smaller than in the orbital catalogs. We developed a new…

地球与行星天体物理 · 物理学 2015-06-18 Andrea Milani , Alberto Cellino , Zoran Knezevic , Bojan Novakovic , Federica Spoto , Paolo Paolicchi

The Nysa-Polana complex is a group of low-inclination asteroid families in the inner main belt, bounded in semimajor axis by the Mars-crossing region and the Jupiter 3:1 mean-motion resonance. This group is important as the most likely…

地球与行星天体物理 · 物理学 2015-06-23 Melissa Dykhuis , Richard Greenberg

We use observations from the Catalina Sky Survey (CSS) to determine the bias-corrected population of small members in four very young families down to sizes equivalent to several hundred meters. Using the most recent catalog of known…

地球与行星天体物理 · 物理学 2023-10-30 David Vokrouhlický , David Nesvorný , Miroslav Brož , William F. Bottke