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首页> 外文期刊>The Astrophysical journal >A REVISED ASTEROID POLARIZATION-ALBEDO RELATIONSHIP USING WISE/NEOWISE DATA
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A REVISED ASTEROID POLARIZATION-ALBEDO RELATIONSHIP USING WISE/NEOWISE DATA

机译:使用WISE / NEOWISE数据修订的星体极化-阿尔贝多关系

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We present a reanalysis of the relationship between asteroid albedo and polarization properties using the albedos derived from the Wide-field Infrared Survey Explorer. We find that the function that best describes this relation is a three-dimensional linear fit in the space of log (albedo)-log (polarization slope)-log (minimum polarization). When projected to two dimensions, the parameters of the fit are consistent with those found in previous work. We also define p as the quantity of maximal polarization variation when compared with the albedo and present the best-fitting albedo-p relation. Some asteroid taxonomic types stand out in this three-dimensional space, notably the E, B, and M Tholen types, while others cluster in clumps coincident with the S- and C-complex bodies. We note that both low albedo and small (D 30?km) asteroids are underrepresented in the polarimetric sample, and we encourage future polarimetric surveys to focus on these bodies.
机译:我们提出了一个小卫星反照率和极化特性之间的关系的重新分析,使用的是来自广域红外勘测仪的反照率。我们发现,最能描述这种关系的函数是在对数(反照率)-对数(极化斜率)-对数(最小极化)空间中的三维线性拟合。当投影到二维时,拟合参数与先前工作中发现的参数一致。我们还将p定义为与反照率相比的最大极化变化量,并给出最合适的反照率p关系。一些小行星分类学类型在此三维空间中脱颖而出,特别是E,B和M Tholen类型,而其他一些则聚集在与S和C复杂物体重合的块中。我们注意到,低反照率和小型(D <30?km)小行星在极化样品中的代表性都不足,因此我们鼓励未来的极化研究将重点放在这些物体上。

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