کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
5426933 1397239 2018 10 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Polarized scattering by Gaussian random particles under radiative torques
کلمات کلیدی
Gaussian random shapes; Radiative torque; Polarization; Dynamical alignment; 00-01; 99-00;
موضوعات مرتبط
مهندسی و علوم پایه شیمی طیف سنجی
پیش نمایش صفحه اول مقاله
Polarized scattering by Gaussian random particles under radiative torques
چکیده انگلیسی

•Polarization by arbitrary shaped particles is studied using state-of-the-art methods.•Monochromatic radiation aligns a statistical ensemble of Gaussian random ellipsoids.•Aligned particles affect the polarization of scattered radiation.•The method, with additions, can be applied to study of polarization of starlight.

We study the internal alignment of a statistical ensemble of Gaussian random ellipsoids with respect to the radiation direction. We solve the rigid body dynamics due to scattering forces and torques, using a numerically exact and efficient T-matrix solver for arbitrary particle shapes and compositions. We then compare the polarization of the aligned ensemble to a randomly oriented ensemble and a perfectly aligned ensemble. We find that the ensemble becomes partially aligned under monochromatic radiation and that the internal alignment has an significant effect on the intensity and polarization of the scattered light.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 205, January 2018, Pages 40-49
نویسندگان
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