Online multi-parameter phase-curve fitting and application to a large corpus of asteroid photometric data

被引：67
|
作者：
Oszkiewicz, D. A. [1 ,2 ,3 ]
Muinonen, K. [1 ,4 ]
Bowell, E. [2 ]
Trilling, D. [3 ]
Penttila, A. [1 ]
Pieniluoma, T. [1 ]
Wasserman, L. H. [2 ]
Enga, M-T [5 ]
机构：
[1] Univ Helsinki, Dept Phys, FI-00014 Helsinki, Finland
[2] Lowell Observ, Flagstaff, AZ 86001 USA
[3] No Arizona Univ, Dept Phys & Astron, Flagstaff, AZ 86011 USA
[4] Finnish Geodet Inst, FI-02431 Masala, Finland
[5] Univ Arkansas, Fayetteville, AR 72701 USA
来源：
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 2011年 / 112卷 / 11期
基金：
芬兰科学院;
关键词：
Absolute magnitude; Asteroids; !text type='Java']Java[!/text] applet; Phase angle; Phase curve; Phase function;
D O I：
10.1016/j.jqsrt.2011.03.003
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We apply the new H,G(12) and H,G(1),G(2) phase functions to a large corpus of asteroid photometric data. We make use of low-precision (generally rounded to 0.1 mag) and low-accuracy (rms magnitude uncertainties of +/- 0.2-0.3 mag) data obtained from the Minor Planet Center and modified at Lowell Observatory. We find (1) a correlation between G(1),G(2) values derived for asteroid families and albedos; (2) G(12) homogeneity in families. In addition, we make available an online Java applet (titled Asteroid Phase Function Analyzer). The applet may be used to compute asteroid absolute magnitudes and slope parameters using three different phase functions: the H,G, H,G(1),G(2), and H,G(12). The tool also includes non-Gaussian error analysis using Monte Carlo methods. The applet is available at http://asteroid.astro.helsinki.fi/astphase/. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1919 / 1929
页数：11
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    Muinonen, K.
    Bowell, E.
    Trilling, D.
    Penttilä, A.
    Pieniluoma, T.
    Wasserman, L.H.
    Enga, M.-T.
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