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The identification of basaltic asteroids in the asteroid Main Belt and the description of their surface mineralogy is necessary to understand the diversity in the collection of basaltic meteorites. Basaltic asteroids can be identified from…

Astrophysics · Physics 2008-01-14 R. Duffard , F. Roig

We present here multi-band photometry for over 2000 Main-belt asteroids. For each target we report the probabilistic taxonomy using the measured V-R and V-I colors in combination with a machine-learning generated decision surface in…

Earth and Planetary Astrophysics · Physics 2019-06-05 N. Erasmus , A. McNeill , M. Mommert , D. E. Trilling , A. A. Sickafoose , K. Paterson

Differentiated asteroids are rare in the main asteroid belt despite evidence for ~100 distinct differentiated bodies in the meteorite record. We have sought to understand why so few main-belt asteroids differentiated and where those…

While proper orbital elements are currently available for more than 1 million asteroids, taxonomical information is still lagging behind. Surveys like SDSS-MOC4 provided preliminary information for more than 100,000 objects, but many…

Earth and Planetary Astrophysics · Physics 2023-11-08 Valerio Carruba , Júlio I. B. Camargo , Safwan Aljbaae , 51 co-authors , DES Collaboration

The distribution of asteroids across the Main Belt has been studied for decades to understand the compositional distribution and what that tells us about the formation and evolution of our solar system. All-sky surveys now provide orders of…

Earth and Planetary Astrophysics · Physics 2015-06-16 Francesca DeMeo , Benoit Carry

We present analysis of the asteroid surface density distribution of main belt asteroids (mean perihelion $\Delta \simeq 2.404$ AU) in five ecliptic latitude fields, $-17 \gtsimeq \beta(\degr) \ltsimeq +15$, derived from deep \textit{Large…

We report visible to near-infrared spectroscopy and spectrophotometry of asteroid (21238) 1995 WV7 that reveal the presence of deep absorption bands indicating a V taxonomic type with an apparently basaltic surface composition. Since this…

Astrophysics · Physics 2007-05-23 Mark Hammergren , Geza Gyuk , Andrew Puckett

Most asteroid families are very homogeneous in physical properties. Some show greater diversity, however. The Flora family is the most intriguing of them. The Flora family is spread widely in the inner main belt, has a rich collisional…

Earth and Planetary Astrophysics · Physics 2015-11-18 Dagmara Oszkiewicz , Paweł Kankiewicz , Ireneusz Włodarczyk , Agnieszka Kryszczyńska

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…

Earth and Planetary Astrophysics · Physics 2018-09-12 Michael Mommert , Andrew McNeill , David E. Trilling , Nicholas Moskovitz , Marco Delbo'

We are in an era of large catalogs and, thus, statistical analysis tools for large data sets, such as machine learning, play a fundamental role. One example of such a survey is the Sloan Moving Object Catalog (MOC), which lists the…

Earth and Planetary Astrophysics · Physics 2022-10-12 M. Colazo , A. Alvarez-Candal , R. Duffard

We positionally correlate asteroids from existing catalogs with a sample of $\about$18,000 asteroids detected by the Sloan Digital Sky Survey (SDSS, Ivezi\'{c} {\em et al.} 2001). We find 2641 unique matches, which represent the largest…

Astrophysics · Physics 2008-11-26 M. Juric , Z. Ivezic , H. R. Lupton , T. Quinn , S. Tabachnik

Among the largest objects in the main belt, asteroid 4 Vesta is unique in showing a basaltic crust. It is also the biggest member of the Vesta family, which is supposed to originate from a large cratering event about 1 Gyr ago (Marzari et…

This work reports high quality NIR spectra, and their respective interpretations, for eight Vp type asteroids, as defined by Carvano et al. (2010), that were observed at the NASA Infrared Telescope Facility on January 14, 2013 UT. They…

Earth and Planetary Astrophysics · Physics 2015-06-22 Paul S. Hardersen , Vishnu Reddy , Rachel Roberts , Amy Mainzer

We carried out low-resolution optical spectroscopy of 51 main-belt asteroids, most of which have highly-inclined orbits. They are selected from D-type candidates in the SDSS-MOC 4 catalog. Using the University of Hawaii 2.2 m telescope and…

Earth and Planetary Astrophysics · Physics 2020-06-03 Aya Iwai , Yoichi Itoh , Tsuyoshi Terai , Ranjan Gupta , Asoke Sen , Jun Takahashi

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…

Earth and Planetary Astrophysics · Physics 2019-04-17 Marco Delbo , Chrysa Avdellidou , Alessandro Morbidelli

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…

Earth and Planetary Astrophysics · Physics 2020-07-22 R. V. Baluev , E. I. Rodionov

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

In this work, we investigate the size, thermal inertia, surface roughness and geometric albedo of 10 Vesta family asteroids by using the Advanced Thermophysical Model (ATPM), based on the thermal infrared data acquired by mainly NASA's…

Earth and Planetary Astrophysics · Physics 2020-06-26 Haoxuan Jiang , Jianghui Ji , Liangliang Yu

We aim to provide a taxonomic classification for asteroids observed by VISTA-VHS survey. We derive a method for assigning a compositional type to an object based on its (Y-J), (J-Ks), and (H-Ks) colors. We present a taxonomic classification…

Earth and Planetary Astrophysics · Physics 2018-09-12 M. Popescu , J. Licandro , J. M. Carvano , R. Stoicescu , J. de Leon , D. Morate , I. L. Boaca , C. P. Cristescu

We numerically estimate the semi-major axis chaotic diffusion of the Vesta family asteroids induced by close encounters with 11 massive main belt asteroids : (1) Ceres, (2) Pallas, (3) Juno, (4) Vesta, (7) Iris, (10) Hygiea, (15) Eunomia,…

Earth and Planetary Astrophysics · Physics 2015-05-30 J. -B. Delisle , J. Laskar