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82 papers · 1 filter
Using Forbush decreases to derive the transit time of ICMEs propagating from 1 AU to Mars
Johan L. Freiherr von Forstner, Jingnan Guo, Robert F. Wimmer-Schweingruber +13
The propagation of 15 interplanetary coronal mass ejections (ICMEs) from Earth's orbit (1 AU) to Mars (~ 1.5 AU) has been studied with their propagation speed estimated from both m…
White Dwarf Variability with gPhoton: Pulsators
Michael A. Tucker, Scott W. Fleming, Ingrid Pelisoli +10
We present results from a search for short time-scale white dwarf variability using \texttt{gPhoton}, a time-tagged database of \textit{GALEX} photon events and associated software…
Dependence of the Martian radiation environment on atmospheric depth: Modeling and measurement
Jingnan Guo, Tony C. Slaba, Cary Zeitlin +9
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 Ra…
Measurements of Forbush decreases at Mars: both by MSL on ground and by MAVEN in orbit
Jingnan Guo, Robert Lillis, Robert F. Wimmer-Schweingruber +13
The Radiation Assessment Detector (RAD), on board Mars Science Laboratory's (MSL) Curiosity rover, has been measuring ground level particle fluxes along with the radiation dose rat…
HD 169142 in the eyes of ZIMPOL/SPHERE
G. H. -M. Bertrang, H. Avenhaus, S. Casassus +5
We present new data of the protoplanetary disc surrounding the Herbig Ae/Be star HD 169142 obtained in the very broad-band (VBB) with the Zurich imaging polarimeter (ZIMPOL), a sub…
The spatial extent of Polycyclic Aromatic Hydrocarbons emission in the Herbig star HD 179218
Anas S. Taha, Lucas Labadie, Eric Pantin +7
We investigate in the mid-IR the spatial properties of the PAHs emission in the disk of HD179218. We obtained mid-IR images in the PAH1, PAH2 and Si6 filters at 8.6, 11.3 and 12.5…