Search Publications
Exposures of olivine-rich rocks in the vicinity of Ares Vallis: Implications for Noachian and Hesperian volcanism
Mustard, J. F.; Wilson, J. H.
ABSTRACT The igneous evolution of Mars is well represented in stratigraphic settings that transition across major time stratigraphic boundaries. Here we analyze in detail the morphology and composition, determined through visible-near-infrared spectroscopy, of igneous volcanic terrains in Ares Vallis, Mars. Upland plateau units with crater-filling…
Properties of free-free, dust and CO emissions in the starbursts of blue compact dwarf galaxies
Hirashita, Hiroyuki
The central star-forming regions in three blue compact dwarf galaxies (He 2-10, NGC 5253 and II Zw 40) were observed in the 340 GHz (880µm) band at ∼5 arcsec resolution with the Submillimetre Array (SMA). Continuum emission associated with the central star-forming complex was detected in all these galaxies. The SMA 880 µm flux is decom…
Moving Magnetic Features Around AR 10930 from High-resolution Data Observed by Hinode/SOT
Zhang, Hongqi; Li, Xiaobo
We investigate the origin, configuration, and evolution of moving magnetic features (MMFs) in the moat and penumbra regions of NOAA AR 10930 using Hinode/SOT filtergrams and magnetograms. We differentiate MMFs into four types in terms of the location of first appearance and the source of initial flux. The main results are summed up as follows: (1)…
Assignment and rotational analysis of new absorption bands of carbon dioxide isotopologues in Venus spectra
Vandaele, A. C.; Robert, S.; Wilquet, V. +7 more
We present absorption bands of carbon dioxide isotopologues, detected by the Solar Occultation for the Infrared Range (SOIR) instrument on board the Venus Express Satellite. The SOIR instrument combines an echelle spectrometer and an Acousto-Optical Tunable Filter (AOTF) for order selection. It performs solar occultation measurements in the Venus …
Evaluating the robustness of the enantioselective stationary phases on the Rosetta mission against space vacuum vaporization
Szopa, Cyril; Raulin, François; Meierhenrich, Uwe J. +4 more
The European Space Agency's Rosetta mission was launched in March 2004 in order to reach comet 67P/Churyumov-Gerasimenko by August 2014. The Cometary Sampling and Composition experiment (COSAC) onboard the Rosetta mission's lander "Philae" has been designed for the cometary in situ detection and quantification of organic molecules using gas chroma…
Resolving the molecular gas around the lensed quasar RXJ0911.4+0551
Kneib, J. -P.; Salomé, P.; Beelen, A. +5 more
We report on high angular resolution observations of the CO(7-6) line and millimeter continuum in the host galaxy of the gravitationally lensed (z ~ 2.8) quasar
Spatially Resolved Spectroscopy of a Pulsar Wind Nebula in MSH 15-56
Kawai, Nobuyuki; Nakamori, Takeshi; Yatsu, Yoichi +2 more
We report the study of a pulsar wind nebula (PWN) in the middle-aged supernova remnant (SNR) MSH 15-56. High-resolution X-ray imaging observations using XMM-Newton and Chandra provided clear images of its comet-like structure, as seen in other PWNe moving rapidly through interstellar mediums. At the PWN apex, Chandra detected a point source emitti…
On the Field-Aligned Beam Thermal Energy
Mazelle, C.; Wilber, M.; Meziane, K. +2 more
The parallel and perpendicular reduced distribution functions of field-aligned beams (FABs) observed upstream of the Earth's bow shock using the Cluster spacecrafts are examined. A previous study revealed that FABs, observed in oblique shock geometries, exhibit reduced distribution functions with high-energy tails. A selection of FABs with weak-en…
Suzaku observations of the low surface brightness cluster A76
Böhringer, H.; Chon, G.; Ota, N. +2 more
Aims: We present the results of Suzaku observations of a nearby galaxy cluster,
On the coherence of WMAP and Planck temperature maps
Kovács, András; Carron, Julien; Szapudi, István
The recent data release of ESA's Planck mission together with earlier Wilkinson Microwave Anisotropy Probe (WMAP) releases provide the first opportunity to compare high-resolution full sky cosmic microwave background (CMB) temperature anisotropy maps. To quantify the coherence of these maps beyond the power spectrum, we introduce Generalized Phase…