Search Publications
Noise induced on an electric antenna and its effective length in solar wind: Application to CLUSTER observations
Souček, J.; Santolík, O.; Chugunov, Yu. V. +1 more
Two problems related to the performance of an electric antenna in the solar wind are addressed. Namely, the noise induced on the antenna and its effective length at the close vicinity of the plasma resonance. The antenna is a double sphere dipole on the Cluster spacecraft and data are obtained from the WBD instrument. The noise data are interprete…
Prelude to The Moon: Science, Technology, Utilization and Human Exploration
Ehrenfreund, P.; Foing, B. H.
A COSPAR 2-day symposium was dedicated to "The Moon: Science, Technology, Utilization and Human Exploration" at the COSPAR assembly in Paris, on 22-23 July 2004, sponsored by Planetary (B0.3), Life Sciences (F0.1) and Planetary Protection (PPP3) commissions, and ILEWG International Lunar Exploration Working Group. This was very timely to present t…
Active region AR484 tracking with Solar Feature Catalogue
Bentley, R. D.; Ipson, S.; Zharkova, V. +2 more
This paper presents a morphological analysis of the active region NOAA AR 484 as well as its intensity and magnetic field variations associated with flare occurrences. The active region is tracked during a one solar rotation with the automated technique used in Solar Feature Catalogue (SFC). The location and intensity parameters of region AR484 we…
Multiscale, multipoint measurements from Cluster: Advancing our scientific understanding of geospace
Escoubet, C. P.; Goldstein, M. L.; Laakso, H.
Cluster is the first multispacecraft mission with identical instrumentation designed to resolve spatial and temporal structures in geospace. The orbits of the four Cluster spacecraft are variable and are adjusted periodically to place the spacecraft into configurations that optimize the three-dimensional capabilities of the instrumentation. During…
XMM-Newton observations of faint X-ray sources in globular clusters
Webb, N. A.; Barret, D.; Gendre, B.
Using the new generation of X-ray observatories, we are now beginning to identify populations of close binaries in globular clusters, previously elusive in the optical domain because of the high stellar density. These binaries are thought to be, at least in part, responsible for delaying the inevitable core collapse of globular clusters and their …
The hard X-ray emission from the Vela pulsar wind nebula
Cusumano, G.; Bocchino, F.; Mineo, T. +2 more
We present the results of a preliminary spectral analysis performed on the BeppoSAX and XMM observations of the Vela plerion. The broad energy range covered by the instruments on board the two observatories allows an evaluation of the spectral parameters of the high energy emission model and provides an indication on the morphology of the source e…
XMM-Newton spectroscopy of stars in open clusters and star forming regions
Pallavicini, R.; Franciosini, E.; Sanz-Forcada, J. +2 more
We discuss observations of open clusters and star forming regions obtained with the RGS and EPIC instruments on board XMM-Newton. These observations provide a powerful tool to investigate the temperature structure, emission measure distribution and elemental abundances of stars from the pre-main sequence phase to post-main sequence evolution. We r…
Solar flares with and without SOHO/LASCO coronal mass ejections and type II shocks
Hillaris, A.; Preka-Papadema, P.; Moussas, X. +10 more
We analyse of a set of radio rich (accompanied by type IV or II bursts) solar flares and their association with SOHO/LASCO Coronal Mass Ejections in the period 1998 2000. The intensity, impulsiveness and energetics of these events are investigated. We find that, on the average, flares associated both with type IIs and CMEs are more impulsive and m…
Cluster observations of a magnetic field cavity in the plasma sheet
Davies, J. A.; Wild, J. A.; Fazakerley, A. N. +6 more
During the recovery phase of a substorm occurring on 1 September 2002 the four Cluster spacecraft crossed from the northern tail lobe into the plasma sheet. While the spacecraft were located in the plasma sheet boundary layer, the magnetic field data from the four spacecraft detected a cavity of close to zero magnetic field. The plasma in this cav…
Two years of INTEGRAL observation of the BHC IGR J17464-3213
Capitanio, F.; Ubertini, P.; Bazzano, A. +4 more
On March 2003, IBIS, the γ-ray imager on board the INTEGRAL satellite, detected an outburst from a new source, IGR J17464-3213, that turned out to be an HEAO-1 transient, namely H1743-322. The spectral and temporal evolutions of the source were observed by INTEGRAL in different periods. Also RXTE observed the source for the first time on 2003 Marc…