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This review describes the dynamic phenomena in the atmosphere of Mars that are visible in images taken in the visual range through cloud formation and dust lifting. We describe the properties of atmospheric features traced by aerosols…

We report the visible reflection spectrum of the integrated Earth, illuminated as it would be seen as an spatially-unresolved extrasolar planet. The spectrum was derived from observation of lunar earthshine in the range 4800 to 9200…

Astrophysics · Physics 2009-11-07 N. J. Woolf , P. S. Smith , W. A. Traub , K. W. Jucks

The energetic particle environment on the Martian surface is influenced by solar and heliospheric modulation and changes in the local atmospheric pressure (or column depth). The Radiation Assessment Detector (RAD) on board the Mars Science…

The radio signal transmitted by the Mars Express (MEX) spacecraft was observed regularly between the years 2013-2020 at X-band (8.42 GHz) using the European Very Long Baseline Interferometry (EVN) network and University of Tasmania's…

Exploration of Mars has been made possible using a series of landers, rovers and orbiters. The HiRise camera on the Mars Reconnaissance Orbiter (MRO) has captured high-resolution images covering large tracts of the surface. However, orbital…

Instrumentation and Methods for Astrophysics · Physics 2019-02-18 Adrien Bouskela , Aman Chandra , Jekan Thangavelautham , Sergey Shkarayev

The Mars Atmosphere-Ice Coupler MAIC-2 is a simple, latitudinal model, which consists of a set of parameterisations for the surface temperature, the atmospheric water transport and the surface mass balance (condensation minus evaporation)…

Geophysics · Physics 2010-04-28 Ralf Greve , Bjoern Grieger , Oliver J. Stenzel

Limited surface observations of turbulent heat fluxes result in incomplete knowledge about the surface energy balance that drives the climate system. Here, we developed a novel, purely physics-based analytical method grounded on the…

Atmospheric and Oceanic Physics · Physics 2022-10-12 Mayank Gupta , Martin Wild , Subimal Ghosh

Channel networks on the plateau adjacent to Juventae Chasma have the highest drainage densities reported on Mars.We model frozen precipitation on the Juventae plateau,finding that the trigger for forming these channel networks could have…

Earth and Planetary Astrophysics · Physics 2015-05-20 Edwin S. Kite , Scot C. R. Rafkin , Timothy Michaels , William E. Dietrich , Michael Manga

Thermal phase curves of exoplanet atmospheres have revealed temperature maps as a function of planetary longitude, often by sinusoidal decomposition of the phase curve. We construct a framework for describing two-dimensional temperature…

Earth and Planetary Astrophysics · Physics 2022-05-04 Brett M. Morris , Kevin Heng , Kathryn Jones , Caroline Piaulet , Brice-Olivier Demory , Daniel Kitzmann , H. Jens Hoeijmakers

A BRDF for the VisorSat model of Starlink satellites is described. The parameter coefficients were determined by least squares fitting to more than 10,000 magnitudes recorded by the MMT-9 robotic observatory. The BRDF is defined in a…

Instrumentation and Methods for Astrophysics · Physics 2021-09-16 Anthony Mallama

The characterization of the polarimetric properties of the planet Earth is important for the interpretation of expected observations and the planning of future instruments. We present a multi-wavelengths and multi-phase set of benchmark…

Earth and Planetary Astrophysics · Physics 2015-06-16 Andreas Bazzon , Hans Martin Schmid , Daniel Gisler

The Descent Imager/Spectral Radiometer aboard the Huygens probe successfully acquired images and spectra of the surface of Titan. To counter the effects of haze and atmospheric methane absorption it carried a Surface Science Lamp to…

Earth and Planetary Astrophysics · Physics 2017-02-03 S. E. Schröder , H. U. Keller

Context. To better understand the observed brightness of low Earth orbit satellites, we must characterize their reflectivity, which in turn depends importantly on their bus designs. The reflectivity of a body can be described by Lambert's…

We present a technique for estimating the shape and reflectance of an object in terms of its surface normals and spatially-varying BRDF. We assume that multiple images of the object are obtained under fixed view-point and varying…

Computer Vision and Pattern Recognition · Computer Science 2015-03-17 Zhuo Hui , Aswin C. Sankaranarayanan

The Martian upper atmosphere is known to vary diurnally and seasonally due to changing amounts of solar radiation. However, in the upper thermosphere and exosphere, the neutrals are also subject to ion precipitation. This can increase the…

Earth and Planetary Astrophysics · Physics 2019-01-01 H. N. Williamson , M. K. Elrod , S. M. Curry , R. E. Johnson

Orbital phase-dependent variations in thermal emission and reflected stellar energy spectra can provide meaningful constraints on the climate states of terrestrial extrasolar planets orbiting M dwarf stars. Spatial distributions of water…

Earth and Planetary Astrophysics · Physics 2019-06-07 E. T. Wolf , R. K. Kopparapu , J. Haqq-Misra

Soft x-ray emissions induced by solar wind ions that collide with neutral material in the solar system have been detected around planets, and were proposed as a remote probe for the solar wind interaction with the Martian exosphere. A…

Earth and Planetary Astrophysics · Physics 2023-02-08 G. Y. Liang , T. R. Sun , H. Y. Lu , X. L. Zhu , Y. Wu , S. B. Li , H. G. Wei , D. W. Yuan , W. Cui , X. W. Ma , G. Zhao

Modeling non-Lambertian effects such as facial specularity leads to a more realistic 3D Morphable Face Model. Existing works build parametric models for diffuse and specular albedo using Light Stage data. However, only diffuse and specular…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Yuxuan Han , Zhibo Wang , Feng Xu

{\it Fermi}-LAT has detected pulsed gamma-ray emissions with high confidences from more than 40 millisecond pulsars (MSPs). Here we study the phase-averaged gamma-ray properties of MSPs by using revised version of a self-consistent outer…

High Energy Astrophysical Phenomena · Physics 2017-02-22 Z. J. Jiang , S. B. Chen , X. Li , L. Zhang

A method of measuring the relative phase of the energy gap in a high-temperature superconductor is suggested for electron energy loss spectroscopy. Energy-resolved measurements of off-specular scattering should show a feature similar to the…

Condensed Matter · Physics 2009-10-22 Michael E. Flatte'