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Rotational properties of the Maria asteroid family

Kim, M.-J. and Choi, Y.-J. and Moon, H.-K. and Byun, Y.-I. and Brosch, N. and Kaplan, M. and Kaynar, S. and Uysal, Ö. and Güzel, E. and Behrend, R. and Yoon, J.-N. and Mottola, S. and Hellmich, S. and Hinse, T. C. and Eker, Z. and Park, J.-H. (2014) Rotational properties of the Maria asteroid family. Astronomical Journal, 147:56 (3), pp. 1-15. American Astronomical Society. DOI: 10.1088/0004-6256/147/3/56 ISSN 0004-6256

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Abstract

The Maria family is regarded as an old-type (~3 ± 1 Gyr) asteroid family that has experienced substantial collisional and dynamical evolution in the main belt. It is located near the 3:1 Jupiter mean-motion resonance area that supplies near-Earth asteroids to the inner solar system. We carried out observations of Maria family asteroids during 134 nights from 2008 July to 2013 May and derived synodic rotational periods for 51 objects, including newly obtained periods of 34 asteroids. We found that there is a significant excess of fast and slow rotators in the observed rotation rate distribution. The one-sample Kolmogorov–Smirnov test confirms that the spin rate distribution is not consistent with a Maxwellian at a 92% confidence level. From correlations among rotational periods, amplitudes of light curves, and sizes, we conclude that the rotational properties of Maria family asteroids have been changed considerably by non-gravitational forces such as the YORP effect. Using a light-curve inversion method, we successfully determined the pole orientations for 13 Maria members and found an excess of prograde versus retrograde spins with a ratio (Np/Nr) of 3. This implies that the retrograde rotators could have been ejected by the 3:1 resonance into the inner solar system since the formation of the Maria family. We estimate that approximately 37–75 Maria family asteroids larger than 1 km have entered near-Earth space every 100 Myr.

Item URL in elib:https://elib.dlr.de/97166/
Document Type:Article
Title:Rotational properties of the Maria asteroid family
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kim, M.-J.Department of Astronomy, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, 120-749 Seoul, Korea, skarma (at) galaxy.yonsei.ac.krUNSPECIFIED
Choi, Y.-J.Korea Astronomy and Space Science Institute, 776 Daedeokdae-ro, Yuseong-gu, 305-348 Daejeon, KoreaUNSPECIFIED
Moon, H.-K.Korea Astronomy and Space Science Institute, 776 Daedeokdae-ro, Yuseong-gu, 305-348 Daejeon, KoreaUNSPECIFIED
Byun, Y.-I.Department of Astronomy, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, 120-749 Seoul, KoreaUNSPECIFIED
Brosch, N.Tel Aviv University, P.O. Box 39040, Tel Aviv 69978, IsraelUNSPECIFIED
Kaplan, M.Akdeniz Universitesi, Fen Fakultesi, Dumlupinar Bulvari, Kampus, 07058 Antalya, TurkeyUNSPECIFIED
Kaynar, S.Akdeniz Universitesi, Fen Fakultesi, Dumlupinar Bulvari, Kampus, 07058 Antalya, TurkeyUNSPECIFIED
Uysal, Ö.Akdeniz Universitesi, Fen Fakultesi, Dumlupinar Bulvari, Kampus, 07058 Antalya, TurkeyUNSPECIFIED
Güzel, E.Department of Astronomy and Space Sciences, University of Ege, Bornova, 35100 Izmir, TurkeyUNSPECIFIED
Behrend, R.Geneva Observatory, Rue de Vermont 37, 1202 Geneva, SwitzerlandUNSPECIFIED
Yoon, J.-N.Chungbuk National University Observatory, 802-3 Euntan-ri, Jincheon-gun, Chungcheongbuk-do, KoreaUNSPECIFIED
Mottola, S.stefano.mottola (at) dlr.deUNSPECIFIED
Hellmich, S.stephan.hellmich (at) dlr.deUNSPECIFIED
Hinse, T. C.Korea Astronomy and Space Science Institute, 776 Daedeokdae-ro, Yuseong-gu, 305-348 Daejeon, KoreaUNSPECIFIED
Eker, Z.Akdeniz Universitesi, Fen Fakultesi, Dumlupinar Bulvari, Kampus, 07058 Antalya, TurkeyUNSPECIFIED
Park, J.-H.Korea Astronomy and Space Science Institute, 776 Daedeokdae-ro, Yuseong-gu, 305-348 Daejeon, KoreaUNSPECIFIED
Date:5 February 2014
Journal or Publication Title:Astronomical Journal
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:147:56
DOI :10.1088/0004-6256/147/3/56
Page Range:pp. 1-15
Publisher:American Astronomical Society
ISSN:0004-6256
Status:Published
Keywords:minor planets, asteroids
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Vorhaben Exploration des Sonnensystems
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Asteroids and Comets
Deposited By: Bründl, Tara-Marie
Deposited On:04 Sep 2015 08:38
Last Modified:10 Jan 2019 15:46

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