Search Publications
Ultraluminous X-ray sources out to z ~ 0.3 in the COSMOS field
Finoguenov, A.; Kneib, J. -P.; Ilbert, O. +59 more
Context. Using Chandra observations we identified a sample of seven off-nuclear X-ray sources in the redshift range z = 0.072-0.283, located within optically bright galaxies in the COSMOS Survey. All of them, if associated with their closest bright galaxy, would have L[0.5-7 keV] > 1039 erg s-1 and therefore can be classif…
Global reconnection topology as inferred from plasma observations inside Kelvin-Helmholtz vortices
Dandouras, I.; Lucek, E.; Kistler, L. M. +4 more
During a long lasting period of northward interplanetary magnetic field and high solar wind speed (above 700 km/s), the Cluster spacecraft go across a number of very large rolled-up Kelvin-Helmholtz (KH) vortices at the dusk magnetopause, close to the terminator. The peculiarity of the present event is a particular sequence of ions and electrons d…
Far-infrared opacity sources in Titan’s troposphere reconsidered
Irwin, P. G. J.; Teanby, N. A.; de Kok, R.
We use Cassini far-infrared limb and nadir spectra, together with recent Huygens results, to shed new light on the controversial far-infrared opacity sources in Titan's troposphere. Although a global cloud of large CH 4 ice particles around an altitude of 30 km, together with an increase in tropospheric haze opacity with respect to the …
Brightness map of the zodiacal emission from the AKARI IRC All-Sky Survey
Usui, F.; Ishihara, D.; Ishiguro, M. +6 more
The first Japanese infrared space mission AKARI successfully scanned the whole sky with its two main instruments, the Infrared Camera (IRC) and the Far-Infrared Surveyor (FIS). The AKARI All-Sky Survey provides us with an invaluable opportunity to examine the zodiacal emission (ZE) over the entire sky in the leading as well as the trailing directi…
Large-scale fluctuations of PSBL magnetic flux tubes induced by the field-aligned motion of highly accelerated ions
Zelenyi, L. M.; Sauvaud, J. -A.; Grigorenko, E. E. +2 more
We present a comprehensive analysis of magnetic field and plasma data measured in the course of 170 crossings of the lobeward edge of Plasma Sheet Boundary Layer (PSBL) in the Earth's magnetotail by Cluster spacecraft. We found that large-scale fluctuations of the magnetic flux tubes have been registered during intervals of propagation of high vel…
The Hard X-ray View of Reflection, Absorption, and the Disk-Jet Connection in the Radio-loud AGN 3C 33
Hardcastle, M. J.; Reeves, J. N.; Lee, J. C. +3 more
We present results from Suzaku and Swift observations of the nearby radio galaxy 3C 33, and investigate the nature of absorption, reflection, and jet production in this source. We model the 0.5-100 keV nuclear continuum with a power law that is transmitted either through one or more layers of pc-scale neutral material, or through a modestly ionize…
Herschel/HIFI spectroscopy of the intermediate mass protostar NGC 7129 FIRS 2
de Graauw, Th.; Liseau, R.; Braine, J. +58 more
Herschel/HIFI observations of water from the intermediate mass protostar NGC 7129 FIRS 2 provide a powerful diagnostic of the physical conditions in this star formation environment. Six spectral settings, covering four H216O and two H218O lines, were observed and all but one H218O l…
Properties of the thermal ion plasma near Rhea as measured by the Cassini plasma spectrometer
Persoon, A. M.; Wilson, R. J.; Tokar, R. L. +1 more
Rhea is the second largest Saturnian satellite orbiting at 8.74 Saturn radii within the magnetosphere's near corotating thermal plasma. Rhea's orbital speed is less than the corotation speed, so the thermal plasma forms a wake in the direction of Rhea's orbital motion. During 26 November 2005, Cassini passed within 500 km of Rhea and through this …
Radio counterpart of the lensed submm emission in the cluster MS0451.6-0305: new evidence for the merger scenario
Koopmans, L. V. E.; Garrett, M. A.; Limousin, M. +2 more
Context. SMM J04542-0301 is an extended ( 1 arcmin) submm source located near the core of the cluster MS0451.6-0305. It has been suggested that part of its emission arises from the interaction between a LBG and two EROs at z 2.9 that are multiply-imaged in the optical/NIR observations. However, the dramatic resolution difference between the sub-mm…
A bulk cloud parameterization in a Venus General Circulation Model
Read, Peter L.; Lewis, Stephen R.; Lee, Christopher
A condensing cloud parameterization is included in a super-rotating Venus General Circulation Model. A parameterization including condensation, evaporation and sedimentation of mono-modal sulfuric acid cloud particles is described. Saturation vapor pressure of sulfuric acid vapor is used to determine cloud formation through instantaneous condensat…