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The Hipparcos mission and galactic open clusters and NGC 7538 star forming regions
Scholz, R. -D.; Piskunov, A. E.; Kharchenko, N. V. +2 more
We present some results of a study of the galactic open cluster population. This study is based on the all-sky catalogue ASCC-2.5 compiled from Tycho-2, Hipparcos and other catalogues. Screening the ASCC-2.5 resulted in the identification of 520 known clusters and the detection of 130 new ones. A uniform combined kinematic-photometric cluster memb…
Signs of warm water on Saturn's moon
Peplow, Mark
Cassini probe reveals conditions that might support life on Enceladus.
Summary of the Results of INTAS Project WP 01-270: Physics of the Heliosheath Plasma Flow and Structure of the Termination Shock
Kallenbach, Reinald; Izmodenov, Vladislav V.
The high-energy spectrum of Cygnus X-1 as measured by INTEGRAL
Goldoni, P.; Rodriguez, J.; Malzac, J. +6 more
The INTEGRAL satellite observed the binary black hole system Cygnus X-1 on 2003 June 7 11. The source was detected up to 800 keV, its spectrum beeing compatible with a power law of photon index 2.3. In the framework of the accreting black hole phenomenology, the source was in an unusual state, probably the so-called “intermediate state”. Using the…
X-ray and Gamma-ray properties of AGN: Results from XMM-Newton, Chandra and INTEGRAL
Komossa, Stefanie
The X-ray observatories XMM-Newton and Chandra provided a wealth of exciting new results on active galaxies, and many more are expected to emerge soon from the Gamma-ray mission INTEGRAL. Chandra delivered X-ray images of outstanding detail, reaching subarcsecond spatial resolution for the first time in X-ray astronomy. XMM-Newton with its high se…
Movement of the Magnetic Structure in the Plasma Sheet Observed by Cluster II
Balogh, A.; Reme, H.; Lu, Li +3 more
Using the data of the FGM instrument onboard of Cluster II, we can calculate the velocity of the magnetic structure. Data observed by Cluster II in the plasma sheet were analyzed during the storm (1 and 2 August, 2002) and the geomagnetism quiet (6 and 7 August, 2002) in GSM (Geocentric Solar Magnetospheric System) coordinates. After analyzing the…
A systematic analysis of X-ray afterglows of gamma-ray burst observed by XMM-Newton
Piro, Luigi; de Pasquale, Massimiliano; Gendre, Bruce
This work is part of a systematic re-analysis program of all the data of gamma-ray burst (GRB) X-ray afterglows observed so far, in order to constrain the GRB models. We present here a systematic analysis of those afterglows observed by XMM-Newton between January 2000 and March 2004. This dataset includes GRB 011211 and GRB 030329. We have obtaine…
Physical parameters of the plasma tail of Rosetta target comet 67P/Churyumov-Gerasimenko
Churyumov, K. I.
On the basis of photometric processing of the two large scale photographic images of comet 67P obtained in Nizhny Arkhyz with the help of the 6-BTA reflector of SAO of RAS and using the diffusion model of L. Shulman and H. Nazarchuk some physical parameters of magnetic field of the comet plasma tail (coefficients of diffusion and induction of magn…
Low cost development for the Rosetta Lander French subsystems: Lessons learned
Debus, Andre; Moura, Denis
After the delay of the Rosetta mission launch, previously planned in January 2003, this mission, led by ESA, will finally be launched from Kourou by Ariane V G+ at the beginning of next year (2004). After a long trip, the spacecraft will reach the comet Churyumov Gerasimenko in 2014. The mission includes a lander, built by an European consortium u…
Corrigendum: Titan Radar Mapper observations from Cassini's T3 fly-by
Stiles, B.; Kelleher, K.; Callahan, P. +32 more