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Parameter estimation of superdiffusive motion of energetic particles upstream of heliospheric shocks
Zimbardo, Gaetano; Perri, Silvia; Fichtner, Horst +1 more
Context. In-situ spacecraft observations recently suggested that the transport of energetic particles accelerated at heliospheric shocks can be anomalous, i.e. the mean square displacement can grow non-linearly in time. In particular, a new analysis technique has permitted the study of particle transport properties from energetic particle time pro…
Multitechnique testing of the viscous decretion disk model. I. The stable and tenuous disk of the late-type Be star β CMi
Carciofi, A. C.; Rivinius, Th.; Štefl, S. +10 more
Context. The viscous decretion disk (VDD) model is able to explain most of the currently observable properties of the circumstellar disks of Be stars. However, more stringent tests, focusing on reproducing multitechnique observations of individual targets via physical modeling, are needed to study the predictions of the VDD model under specific ci…
Detection and estimation of ZY-3 three-line array image distortions caused by attitude oscillation
Tong, Xiaohua; Li, Lingyun; Liu, Shijie +5 more
ZY-3 is China's first civilian high-resolution stereo surveying and mapping satellite, which is equipped with a three-line array panchromatic stereo camera. However, high-resolution satellite images (HRSIs) often suffer from satellite attitude oscillation, which can cause image distortions, and thus affect the geo-positioning accuracy. This paper …
The AU Mic Debris Disk: Far-infrared and Submillimeter Resolved Imaging
Ivison, R. J.; Dent, W. R. F.; Matthews, Brenda C. +20 more
We present far-infrared and submillimeter maps from the Herschel Space Observatory and the James Clerk Maxwell Telescope of the debris disk host star AU Microscopii. Disk emission is detected at 70, 160, 250, 350, 450, 500, and 850 µm. The disk is resolved at 70, 160, and 450 µm. In addition to the planetesimal belt, we detect thermal …
Hot oxygen corona at Mars and the photochemical escape of oxygen: Improved description of the thermosphere, ionosphere, and exosphere
Bougher, Stephen W.; Combi, Michael R.; Tenishev, Valeriy +2 more
The Mars Adaptive Mesh Particle Simulator model is coupled with the Mars Global Ionosphere Thermosphere Model for the first time to provide an improved description of the Martian hot O corona based on our modeling studies of O2+ dissociative recombination. A total of 12 cases comprising three solar activity levels and four or…
The recent dynamical history of comet 67P/Churyumov-Gerasimenko
Maquet, L.
This paper presents the past evolution of the orbital elements of comet 67P/Churyumov-Gerasimenko, target of the Rosetta spacecraft. The gravitational orbit of the comet is affected by the sublimation of ice from the nucleus that triggers non-gravitational forces. The comet also experienced several close encounters with Jupiter, especially notable…
Sixteen Years of Ulysses Interstellar Dust Measurements in the Solar System. II. Fluctuations in the Dust Flow from the Data
Krüger, Harald; Sterken, Veerle J.; Strub, Peter
The Ulysses spacecraft provided the first opportunity to identify and study interstellar dust (ISD) in situ in the solar system between 1992 and 2007. Here we present the first comprehensive analysis of the ISD component in the entire Ulysses dust data set. We analyzed several parameters of the ISD flow in a time-resolved fashion: flux, flow direc…
An Atlas of Coronal Electron Density at 5R⊙. I. Data Processing and Calibration
Morgan, Huw
Tomography of the solar corona can provide cruicial constraints for models of the low corona, unique information on changes in coronal structure and rotation rates, and a valuable boundary condition for models of the heliospheric solar wind. This is the first of a series of three papers which aim to create a set of maps of the coronal density over…
Chandra survey in the AKARI North Ecliptic Pole Deep Field - I. X-ray data, point-like source catalogue, sensitivity maps, and number counts
Malkan, M. A.; Pearson, C.; Takagi, T. +10 more
We present data products from the 300 ks Chandra survey in the AKARI North Ecliptic Pole Deep Field. This field has a unique set of nine-band infrared photometry covering 2-24 µm from the AKARI Infrared Camera, including mid-infrared (MIR) bands not covered by Spitzer. The survey is one of the deepest ever achieved at ∼15 µm, and is by…
From Diversity to Dichotomy, and Quenching: Milky-Way-like and Massive Galaxy Progenitors at 0.5 < z <3.0
Patel, Shannon G.; Kajisawa, Masaru; Morishita, Takahiro +4 more
Using the Hubble Space Telescope (HST)/WFC3 and Advanced Camera for Surveys multi-band imaging data taken in CANDELS and 3D-HST, we study the general properties and diversity of the progenitors of the Milky Way (MWs) and local massive galaxy (MGs) at 0.5\lt z\lt 3.0, based on a constant cumulative number density analysis. After careful data reduct…