Lightcurve survey of V-type asteroids in the inner asteroid belt

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type 16 Jun 2014Embargo end date: 01 Jan 2013 English Publisher:Oxford University Press (OUP)Journal:Publications of the Astronomical Society of Japan, volume 66 (issn: 0004-6264, eissn: 2053-051X,

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Authors: Hasegawa, Sunao; Miyasaka, Seidai; Mito, Hiroyuki; Sarugaku, Yuki; Ozawa, Tomohiko; Kuroda, Daisuke; Nishihara, Setsuko; +13 Authors

doi: 10.1093/pasj/psu040 , 10.48550/arxiv.1311.4653

arXiv: 1311.4653

Lightcurve survey of V-type asteroids in the inner asteroid belt

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Abstract

Abstract We observed the lightcurves of 13 V-type asteroids [(1933) Tinchen, (2011) Veteraniya, (2508) Alupka, (3657) Ermolova, (3900) Knezevic, (4005) Dyagilev, (4383) Suruga, (4434) Nikulin, (4796) Lewis, (6331) 1992 FZ1, (8645) 1998 TN, (10285) Renemichelsen, and (10320) Reiland]. Using these observations we determined the rotational rates of the asteroids, with the exception of Nikulin and Renemichelsen. The distribution of rotational rates of 59 V-type asteroids in the inner main belt, including 29 members of the Vesta family, which are regarded as being ejecta from the asteroid (4) Vesta, is inconsistent with the best-fit Maxwellian distribution. This inconsistency may be due to the effect of thermal radiation Yarkovsky–O’Keefe–Radzievskii–Paddack (YORP) torques, which implies that the collision event that formed V-type asteroids is sub-billion to several billion years in age.

Related Organizations

Misato Observatory
Japan
University of Tokyo
Japan
Institute of Science Tokyo
Japan
National Astronomical Observatory of Japan
Japan
Chinese Academy of Sciences
China (People's Republic of)

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Keywords

Earth and Planetary Astrophysics (astro-ph.EP), FOS: Physical sciences, Astrophysics - Earth and Planetary Astrophysics

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