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Measuring the matter distribution within z = 0.2 cluster lenses with XMM-Newton
Smail, I.; Kneib, J. P.; Czoske, O. +4 more
We present an analysis of seven clusters observed by XMM-Newton as part of our survey of 17 most X-ray luminous clusters of galaxies at z ∼ 0.2 selected for a comprehensive and unbiased study of the mass distribution in massive clusters. Using the public software FTOOLS and XMMSAS we have set up an automated pipeline to reduce the EPIC MOS and pn …
Shell-like configuration in O+ ion velocity distribution at high altitudes in the dayside magnetosphere observed by Cluster/CIS
Lundin, R.; Nilsson, H.; Rème, H. +7 more
Available from http://www.copernicus.org/site/EGU/annales/22/7/2473.htm?FrameEngine=false;
Cluster: New Measurements of Plasma Structures in 3D
Escoubet, C. P.; Goldstein, M.; Laakso, H.
Reflection Model as Applied for the Analysis of Enhancements of Solar Cosmic Rays at Different Heliocentric Distances: An Example of the Event Observed in June 1991 onboard GRANAT and ULYSSES Spacecraft
Grigorenko, E. E.; Lyubimov, G. P.
In this paper we consider a large-scale enhancement of the intensity of solar protons (E = 1-20 MeV) observed in June 1991 for 26 days at different points of interplanetary space, onboard ULYSSES (in the time period under consideration it was located at a heliocentric distance of 3 AU, at an angular distance of ~70° to the East of the Sun-Earth li…
Searches of the Periods and Definition of Variability Types of New Variable Stars TX Crv, DP Cam, IRAS 17583+5150
Solonovich, A. P.; Bryukhanov, I. S.; Sergey, I. M.
Measurements of brightness of stars TX Crv, DP Cam, IRAS 17583+5150 opened in "IRAS" and "HIPPARCOS" experiments are carried out using negatives of the Odessa observatory. Proposed types of these stars: TX Crv -- type ISB(?), DP Cam -- type ISB, IRAS 17583+5150 -- type SRB (SRC).
Chemical and Dynamical Evolution in the Solar Neighbourhood
Kovtyukh, V.; Soubiran, C.; Bienaymé, O. +1 more
We measure the surface mass density of the galactic disk in the solar neighbourhood using two samples of red clump stars, we also determine the thin and thick disk chemical properties. High resolution spectral data of red clump stars towards the NGP have been obtained with the spectrograph Elodie at OHP for Tycho-2 selected stars. Nearby Hipparcos…
X-ray analysis of the colliding wind binary FO15
Albacete Colombo, J. F.
We combine and analyze ten XMM-Newton X-ray observations of the FO15 hot massive (O5V((f))+O9.5V) binary system. EPIC spectra are fitted according to a warm absorption model N(ism)x N(wind) in combination with a two temperature (APEC) optically thin thermal plasma model of temperatures kT(1)=0.22 and kT(2)=2.62 keV, and the inclusion of six indepe…
Scientific instruments studied by Galileo Avionica for Mars surface exploration
Cosi, M.; Battistelli, E.; Bini, A. +3 more
Several missions for planetary explorations, including comets and asteroids, are planned by the space agencies: Rosetta (close to the launch date at the time of writing) Bepi Colombo, Mars Programme in all its past and next missions. The satisfaction of this scientific request calls for the development of some instruments and facilities devoted to…
Analysis of stellar activity of F, G and K stars with IUE
Buccino, A. P.; Mauas, P. J. D.
In this work, we correct in colour (B-V) the calibration between the Mount Wilson (S_MW) and the Mg II index (X_hk) we have presented in previous works. With this calibration, we build a catalog of the Mg II and Ca II indexes for all the F, G and K main sequence stars with high resolution IUE spectra (i.e. 1640 observations of 269 stars). Finally,…
The central star of the planetary nebula LMC-N66: a massive accreting white dwarf?
Hamann, W. -R.; Peña, M.
The central star of the PN LMC-N66 showed an impressive outburst in 1993 - 1994, returning to its initial conditions about 8 years later. Its spectrum resembles that of a WN4.5 star, being the only confirmed central star of planetary nebulae showing such a spectral type. Recent analysis for the central star parameters, performed by Hamann et al. (…