Visible spectroscopy of extremely young asteroid families
نویسندگان
چکیده
منابع مشابه
Rotation-Resolved Spectroscopy of a Very Young Asteroid, (1270) Datura
(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 rotationresolved reflectance spectra (0.6 μm – 1.0 μm) were observed in order to find “fresh” surface. Our data show no significant spectral variation along the rotation phase. The depth of the 0.95 μm absorption band, which indicates the degree of space we...
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A statistical method for the evaluation of the probable amount of interlopers included in the most recently identi ed asteroid families is developed. The method is based on the analysis of the local properties of the asteroidal distribution in the zones of the proper element space in which families are located. An application to the most important families listed by Zappal a et al. [1995, Icaru...
متن کاملThe shallow magnitude distribution of asteroid families
It is well known that asteroid families have steeper absolute magnitude (H) distributions for H 12–13 values than the background population. Beyond this threshold, the shapes of the absolute magnitude distributions in the family/background populations are difficult to determine, primarily because both populations are not yet observationally complete. Using a recently generated catalog containin...
متن کاملYarkovsky/YORP chronology of asteroid families
Asteroid families are the byproducts of catastrophic collisions whose fragments form clusters in proper semimajor axis, eccentricity, and inclination space. Although many families have been observed in the main asteroid belt, only two very young families, Karin and Veritas, have well-determined ages. The ages of other families are needed, however, if we hope to infer information about their eje...
متن کاملA Search for Spectro-dynamical Asteroid Families
Dynamical asteroid families are normally identified as concentrations of objects in proper orbital element space. These clusters are believed to result from the collisional disruptions of once larger parent bodies. If an asteroid family contains the remnants from such a collision, then the members of that family should be genetically related, and their range of compositions should make cosmoche...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2008
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:200809934