Tables of phase functions, opacities, albedos, equilibrium temperatures, and radiative accelerations of dust grains in exoplanets

Article


Budaj, J., Kocifaj, M., Salmeron, R. and Hubeny, I.. 2015. "Tables of phase functions, opacities, albedos, equilibrium temperatures, and radiative accelerations of dust grains in exoplanets." Monthly Notices of the Royal Astronomical Society. 454 (1), pp. 2-27. https://doi.org/10.1093/mnras/stv1711
Article Title

Tables of phase functions, opacities, albedos, equilibrium temperatures, and radiative accelerations of dust grains in exoplanets

ERA Journal ID1074
Article CategoryArticle
AuthorsBudaj, J. (Author), Kocifaj, M. (Author), Salmeron, R. (Author) and Hubeny, I. (Author)
Journal TitleMonthly Notices of the Royal Astronomical Society
Journal Citation454 (1), pp. 2-27
Number of Pages26
Year2015
PublisherOxford University Press
Place of PublicationUnited Kingdom
ISSN0035-8711
1365-2966
Digital Object Identifier (DOI)https://doi.org/10.1093/mnras/stv1711
Web Address (URL)https://academic.oup.com/mnras/article/454/1/2/1116945
Abstract

There has been growing observational evidence for the presence of condensates in the atmospheres and/or comet-like tails of extrasolar planets. As a result, systematic and homogeneous tables of dust properties are useful in order to facilitate further observational and theoretical studies. In this paper we present calculations and analysis of non-isotropic phase functions, asymmetry parameter (mean cosine of the scattering angle), absorption and scattering opacities, single scattering albedos, equilibrium temperatures, and radiative accelerations of dust grains relevant for extrasolar planets. Our assumptions include spherical grain shape, Deirmendjian particle size distribution, and Mie theory. We consider several species: corundum/alumina, perovskite, olivines with 0 and 50 per cent iron content, pyroxenes with 0, 20, and 60 per cent iron content, pure iron, carbon at two different temperatures, water ice, liquid water, and ammonia. The presented tables cover the wavelength range of 0.2–500 μm and modal particle radii from 0.01 to 100 μm. Equilibrium temperatures and radiative accelerations assume irradiation by a non-blackbody source of light with temperatures from 7000 to 700 K seen at solid angles from 2π to 10−6 sr. The tables are provided to the community together with a simple code which allows for an optional, finite, angular dimension of the source of light (star) in the phase function.

Keywordsopacity, scattering, astronomical data bases: miscellaneous, planets and satellites: atmospheres, circumstellar matter
ANZSRC Field of Research 2020510107. Planetary science (excl. solar system and planetary geology)
510109. Stellar astronomy and planetary systems
Public Notes

This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2015 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

Byline AffiliationsAustralian National University
Comenius University Bratislava, Slovakia
University of Arizona, United States
Institution of OriginUniversity of Southern Queensland
Funding source
Australian Research Council (ARC)
Grant ID
120101792
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