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Related papers: Small crater populations on Vesta

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We investigated the size distribution of high-inclination main-belt asteroids (MBAs) to explore asteroid collisional evolution under hypervelocity collisions of around 10 km/s. We performed a wide-field survey for high-inclination sub-km…

Earth and Planetary Astrophysics · Physics 2015-05-20 Tsuyoshi Terai , Yoichi Itoh

The size-dependent effects of asteroids on surface regolith and collisional lifetimes suggest that small asteroids are younger than large asteroids. In this study, we performed multicolor main-belt asteroid (MBA) survey by Subaru…

Earth and Planetary Astrophysics · Physics 2015-06-24 H. W. Lin , Fumi Yoshida , Y. T. Chen , W. H. Ip , C. K. Chang

We have carried out a search for Main Belt Asteroids (MBAs) co-orbiting with the large MBA Vesta and the dwarf planet Ceres. Through improving the search criteria used in (Christou, 2000b) and numerical integrations of candidate coorbitals,…

Earth and Planetary Astrophysics · Physics 2015-05-30 Apostolos A. Christou , Paul Wiegert

We perform a study on the impacts on Ceres and Vesta. We aim to determine the size-frequency distribution (SFD) of impactors and to identify and quantify the contribution of each source region, as well as the craters produced and fragments…

Earth and Planetary Astrophysics · Physics 2021-08-25 Patricio Zain , Romina Di Sisto , Gonzalo de Elia

We study the impactor flux and cratering on Ceres and Vesta caused by the collisional and dynamical evolution of the asteroid Main Belt. We develop a statistical code based on a well-tested model for the simultaneous evolution of the Main…

Earth and Planetary Astrophysics · Physics 2015-05-30 G. C. de Elía , R. P. Di Sisto

Dawn's framing camera observed boulders on the surface of Vesta when the spacecraft was in its lowest orbit (LAMO). We identified, measured, and mapped boulders in LAMO images, which have a scale of 20 m per pixel. We estimate that our…

Earth and Planetary Astrophysics · Physics 2020-11-10 Stefan E. Schröder , Uri Carsenty , Ernst Hauber , Franziska Schulzeck , Carol A. Raymond , Christopher T. Russell

Context. Over the past decades, several interplanetary missions have studied small bodies in situ, leading to major advances in our understanding of their geological and geophysical properties. These missions, however, have had a limited…

Vesta is the only currently identified asteroid for which we possess samples, which revealed us that the asteroid is differentiated and possesses a relatively thin basaltic crust that survived to the evolution of the asteroid belt and the…

Earth and Planetary Astrophysics · Physics 2016-08-24 S. Pirani , D. Turrini

We present VRI spectrophotometry of 1003 Main-Belt Asteroids (MBAs) observed with the Sutherland, South Africa, node of the Korea Microlensing Telescope Network (KMTNet). All of the observed MBAs were serendipitously captured in KMTNet's…

Earth and Planetary Astrophysics · Physics 2018-08-01 N. Erasmus , A. McNeill , M. Mommert , D. E. Trilling , A. A. Sickafoose , C. van Gend

In recent years several small basaltic V-type asteroids have been identified all around the main belt. Most of them are members of the Vesta dynamical family, but an increasingly large number appear to have no link with it. The question…

Earth and Planetary Astrophysics · Physics 2015-10-30 S. Ieva , E. Dotto , D. Lazzaro , D. Perna , D. Fulvio , M. Fulchignoni

Photometry results of 32 asteroids are reported from only seven observing nights on only seven fields, consisting of 34.11 cumulative hours of observations. The data were obtained with a wide-field CCD (40.5'x27.3') mounted on a small,…

Astrophysics · Physics 2009-11-13 D. Polishook , N. Brosch

V-type asteroids in the inner Main Belt (a < 2.5 AU) and the HED meteorites are thought to be genetically related to one another as collisional fragments from the surface of the large basaltic asteroid 4 Vesta. We investigate this…

Earth and Planetary Astrophysics · Physics 2015-05-18 Nicholas Moskovitz , Mark Willman , Thomas Burbine , Richard Binzel , Schelte Bus

The majority of basaltic asteroids are found in the inner main belt, although a few have also been observed in the outer main belt and near-Earth space. These asteroids -referred to as V-types- have surface compositions that resemble that…

Earth and Planetary Astrophysics · Physics 2015-05-19 S. Marchi , M. C. De Sanctis , M. Lazzarin , S. Magrin

During its year-long orbital mission, the Dawn spacecraft has mapped the surface of main-belt asteroid Vesta multiple times at different spatial resolutions and illumination and viewing angles. The onboard Framing Camera has acquired…

Earth and Planetary Astrophysics · Physics 2023-11-08 S. E. Schröder , S. Mottola , H. U. Keller , C. A. Raymond , C. T. Russell

Vesta, the second largest Main Belt asteroid, will be the first to be explored in 2011 by NASA's Dawn mission. It is a dry, likely differentiated body with spectrum suggesting that is has been resurfaced by basaltic lava flows, not too…

Earth and Planetary Astrophysics · Physics 2009-12-21 Benoît Carry , Pierre Vernazza , Christophe Dumas , Marcello Fulchignoni

Observations of asteroid 4 Vesta by NASA's Dawn spacecraft are interesting because its surface has the largest range of albedo, color and composition of any other asteroid visited by spacecraft to date. These hemispherical and rotational…

The majority of basaltic objects in the main belt are dynamically connected to Vesta, the largest differentiated asteroid known. Others, due to their current orbital parameters, cannot be easily dynamically linked to Vesta. This is…

Earth and Planetary Astrophysics · Physics 2018-06-13 S. Ieva , E. Dotto , D. Lazzaro , D. Fulvio , D. Perna , E. Mazzotta Epifani , H. Medeiros , M. Fulchignoni

We present the observational results of a survey designed to target and detect asteroids whose colors are similar to those of Vesta family members and thus may be considered as candidates for having a basaltic composition. Fifty basaltic…

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…

Earth and Planetary Astrophysics · Physics 2015-06-16 Tsuyoshi Terai , Jun Takahashi , Yoichi Itoh

The main asteroid belt (MAB) is known to be primarily composed of objects from two distinct taxonomic classes, generically defined here as S- and C-complex. The former probably originated from the inner solar system (interior to Jupiter's…

Earth and Planetary Astrophysics · Physics 2024-04-08 Rogerio Deienno , David Nesvorny , Matthew S. Clement , William F. Bottke , Andre Izidoro , Kevin J. Walsh
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