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Lutetia's lineaments
Küppers, M.; Thomas, N.; Besse, S. +2 more
The European Space Agency's Rosetta spacecraft flew by asteroid (21) Lutetia on July 10, 2010. Observations through the OSIRIS camera have revealed many geological features. Lineaments are identified on the entire observed surface of the asteroid. Many of these features are concentric around the North Pole Crater Cluster (NPCC). As observed on (43…
Monitoring atmospheric dust spring activity at high southern latitudes on Mars using OMEGA
Douté, S.
This paper presents a monitoring of the atmospheric dust in the south polar region during spring of Martian year 27. Our goal is to contribute to identifying the regions where the dust concentration in the atmosphere shows specific temporal patterns, for instance high, variable, and on the rise due to lifting or transport mechanisms. This identifi…
The far magnetotail response to an interplanetary shock arrival
Němeček, Z.; Šafránková, J.; Přech, L. +2 more
We present a study of the impact of the December 7, 2003 fast forward interplanetary (IP) shock on the distant tail of the Earth's magnetosphere. Using the data from the several spacecraft located in the solar wind/magnetosheath upstream to the Earth, we monitor a propagation of the IP shock from the L1 point to the magnetosphere. A behavior of th…
Dense molecular cloud cores as a source of micrometer-sized grains in galaxies
Li, Zhi-Yun; Hirashita, Hiroyuki; Nozawa, Takaya +2 more
Coreshine in dense molecular cloud cores (dense cores) is interpreted as evidence for micrometer-sized grains (referred to as very large grains, VLGs). VLGs may have a significant influence on the total dust amount and the extinction curve. We estimate the total abundance of VLGs in the Galaxy, assuming that dense cores are the site of VLG formati…
A multifractal approach applied to the magnetic field turbulence in Jupiter's magnetosheath
Bolzan, M. J. A.; Echer, E.
We studied the magnetic field turbulence in Jupiter's magnetosheath during the Ulysses inbound trajectory in 1992. This analysis was conducted using nonlinear techniques such as kurtosis, probability density functions, multifractal approach and wavelet analysis. The results from the PDFs and kurtosis analysis, for each magnetic field component, sh…
Magnetic pileup boundary and field draping at Comet Halley
Volwerk, M.; Bertucci, C.; Delva, M. +2 more
The approach of the Rosetta S/C to Comet Churyumov-Gerasimenko in 2014 reactivates the interest in the plasma interaction of the solar wind with the cometary coma. In preparation for the upcoming S/C observations and the start of outgassing of the cometary nucleus, we reinvestigate the magnetic field data from the Vega-1 S/C at the flyby of Comet …
Constraints on Jupiter's stratospheric HCl abundance and chlorine cycle from Herschel/HIFI
Fletcher, L. N.; Irwin, P. G. J.; Teanby, N. A. +1 more
Detection of HCl on Jupiter would provide insight into the chlorine cycle and external elemental fluxes on giant planets, yet so far has not been possible. Here we present the most sensitive search for Jupiter's stratospheric HCl to date using observations of the 625.907 and 1876.221 GHz spectral lines with Herschel's HIFI instrument. HCl was not …
Water and Martian habitability: Results of an integrative study of water related processes on Mars in context with an interdisciplinary Helmholtz research alliance “Planetary Evolution and Life”
Jaumann, R.; Tirsch, D.; Hiesinger, H. +7 more
A study in context with the Helmholtz Alliance 'Planetary Evolution and Life' focused on the (temporary) existence of liquid water, and the likelihood that Mars has been or even is a habitable planet. Both geomorphological and mineralogical evidence point to the episodic availability of liquid water at the surface of Mars, and physical modeling an…
Analysis of Rosetta/VIRTIS spectra of earth using observations from ENVISAT/AATSR, TERRA/MODIS and ENVISAT/SCIAMACHY, and radiative-transfer simulations
Oliva, F.; Irwin, P. G. J.; Capaccioni, F. +7 more
Rosetta, the Solar System cornerstone mission of ESA's Horizon 2000 programme, consists of an orbiter and a lander, and is due to arrive at the comet 67P/Churyumov-Gerasimenko in May 2014. Following its 2004 launch, Rosetta carried out a series of planetary fly-bys and gravitational assists. On these close fly-bys of the Earth, measurements were t…
Possible erosion marks of bottom oceanic currents in the northern lowlands of Mars
De Blasio, Fabio Vittorio
There has been much interest for the hypothetical ancient ocean which might have resided in the northern lowlands of Mars. Hints are the global subdivision of Martian crust, the smooth appearance of the northern terrains, the elevation of river deltas, and the past shorelines. Here it is suggested that water in a sufficiently deep northern ocean w…