基于大型合作网络光学数据的小行星凸形状新模型与更新模型
地球与行星天体物理
2016-08-07 v1
摘要
过去十年间的小行星建模工作产出了包含近400个凸形状模型及其自转状态的综合性数据集。这一数据量已为深入了解主带小行星或大型碰撞族的物理性质提供了深刻洞察。我们旨在增加小行星形状模型和自转状态的数量。这些结果对于各种进一步研究是重要的输入，例如分析不同族群中小行星的物理性质（包括较小的碰撞族）、热物理建模，以及通过盘面分辨图像或恒星掩星数据对形状模型进行缩放。结合已知质量，这提供了体密度估计，同时也约束了太阳系的理论碰撞与演化模型。我们将所有可用的盘面积分光学数据（即从公开数据库和通过大型合作网络获取的经典密集时间分辨率光度测量，以及来自几次巡天观测的稀疏时间分辨率单次测量）作为凸反演方法的输入，导出了小行星的三维形状模型，以及它们的自转周期和自转轴方向。关键要素是一百多名观测者的支持，他们将光学数据提交至公开可用的数据库。我们给出了36颗小行星的更新形状模型，这些小行星的质量估计目前在文献中可获取，或者其质量最有可能通过它们对较小天体的引力影响来确定，而这些较小天体的轨道偏移将由ESA Gaia天体测量任务观测。这是通过使用来自近期视的光学数据进行形状优化来实现的。此外，我们还给出了250颗小行星的新形状模型测定结果，包括13颗Hungaria小行星和3颗近地小行星。
引用
@article{arxiv.1510.07422,
title = {New and updated convex shape models of asteroids based on optical data from a large collaboration network},
author = {J. Hanuš and J. Ďurech and D. A. Oszkiewicz and R. Behrend and B. Carry and M. Delbo' and O. Adam and V. Afonina and R. Anquetin and P. Antonini and L. Arnold and M. Audejean and P. Aurard and M. Bachschmidt and B. Badue and E. Barbotin and P. Barroy and P. Baudouin and L. Berard and N. Berger and L. Bernasconi and J-G. Bosch and S. Bouley and I. Bozhinova and J. Brinsfield and L. Brunetto and G. Canaud and J. Caron and F. Carrier and G. Casalnuovo and S. Casulli and M. Cerda and L. Chalamet and S. Charbonnel and B. Chinaglia and A. Cikota and F. Colas and J-F. Coliac and A. Collet and J. Coloma and M. Conjat and E. Conseil and R. Costa and R. Crippa and M. Cristofanelli and Y. Damerdji and A. Debackere and A. Decock and Q. Déhais and T. Déléage and S. Delmelle and C. Demeautis and M. Dróżdż and G. Dubos and T. Dulcamara and M. Dumont and R. Durkee and R. Dymock and A. Escalante del Valle and N. Esseiva and R. Esseiva and M. Esteban and T. Fauchez and M. Fauerbach and M. Fauvaud and S. Fauvaud and E. Forné and C. Fournel and D. Fradet and J. Garlitz and O. Gerteis and C. Gillier and M. Gillon and R. Giraud and J-P. Godard and R. Goncalves and H. Hamanowa and H. Hamanowa and K. Hay and S. Hellmich and S. Heterier and D. Higgins and R. Hirsch and G. Hodosan and M. Hren and A. Hygate and N. Innocent and H. Jacquinot and S. Jawahar and E. Jehin and L. Jerosimic and A. Klotz and W. Koff and P. Korlevic and E. Kosturkiewicz and P. Krafft and Y. Krugly and F. Kugel and O. Labrevoir and J. Lecacheux and M. Lehký and A. Leroy and B. Lesquerbault and M. J. Lopez-Gonzales and M. Lutz and B. Mallecot and J. Manfroid and F. Manzini and A. Marciniak and A. Martin and B. Modave and R. Montaigut and J. Montier and E. Morelle and B. Morton and S. Mottola and R. Naves and J. Nomen and J. Oey and W. Ogłoza and M. Paiella and H. Pallares and A. Peyrot and F. Pilcher and J-F. Pirenne and P. Piron and M. Polinska and M. Polotto and R. Poncy and J. P. Previt and F. Reignier and D. Renauld and D. Ricci and F. Richard and C. Rinner and V. Risoldi and D. Robilliard and D. Romeuf and G. Rousseau and R. Roy and J. Ruthroff and P. A. Salom and L. Salvador and S. Sanchez and T. Santana-Ros and A. Scholz and G. Séné and B. Skiff and K. Sobkowiak and P. Sogorb and F. Soldán and A. Spiridakis and E. Splanska and S. Sposetti and D. Starkey and R. Stephens and A. Stiepen and R. Stoss and J. Strajnic and J-P. Teng and G. Tumolo and A. Vagnozzi and B. Vanoutryve and J. M. Vugnon and B. D. Warner and M. Waucomont and O. Wertz and M. Winiarski and M. Wolf},
journal= {arXiv preprint arXiv:1510.07422},
year = {2016}
}
备注
Accepted for publication in A&A