Light scattering from exoplanet oceans and atmospheres; Erratum

Document ID: 346

Zugger, Michael E.1,2
Kasting, James F.2,3
Williams, Darren M.2,4
Kane, Timothy J.1,5
Philbrick, C. Russell6

1 The Pennsylvania State Univensity, Applied Research Laboratory, University Park, PA, U.S A.
2 Center for Exoplanets and Habitable Worlds, The Pennsylvania State University, University Park, PA, U.S.A.
3 Department of Geosciences, The Pennsylvania State University, University Park, PA, U.S.A.
4 The Pennsylvaniz State University, School of Science, Erie, The Behrend College, Erie, PA, U.S.A.
5 The Pennsylvania State University, Deptartment of Electrical Engineering, University Park, PA, U.S.A.
6 North Carolina State University, Department of Physics, Raleigh, NC, U.S.A.
 

Abstract

In the published article (Zugger et al. 2010), we modeled orbital light curves from various hypothetical planet types in edge-on orbits as seen from Earth. The intent was to determine how orbital variations in brightness and polarization of terrestrial exoplanets could be used to determine characteristics of the planetary atmospheres and surfaces, in particular, to detect the presence of large oceans on the planet surface. Polarization fractions and relative flux are plotted against orbital longitude (OL), which is defined such that OL = 0° when the planet is in transit (new phase), OL = 90° or 270° when the planet is in quadrature, and OL = 180° when the planet is in secondary transit (full phase). Modeled planets have a homogeneous atmosphere and a single surface type.

After discovering an error in our original code, which affects the shape of some of the orbital light curves for ocean planets, we provide this erratum with the affected figures updated. Some values in Table 1 have also been changed slightly. The general results and conclusions of the paper are not affected, but the updated figures and table are provided here for completeness. We provide a brief discussion of the differences below. The figures affected are Figure 2 and Figures 6–12. The last two rows of Table 1 are also affected.

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Citation:        "Light scattering from exoplanet oceans and atmospheres; Erratum", Zugger, M. E., J. F. Kasting, D. M. Williams, T. J. Kane, C. R. Philbrick, The Astrophysical Journal, The American Astronomical Society, September 2011, pp. 5 - 0, DOI: 10.1088/0004-637X/739/1/55, 739:55