Science Archives Publication System

XMM-Newton study of soft excess X-ray emission in clusters of galaxies

DOI: 10.1016/j.asr.2003.02.076 Bibcode: 2004AdSpR..34.2504K

Kaastra, J. S.; Tamura, T.; den Herder, J. W. +2 more

We discuss the detection of soft excess X-ray emission in a sample of 19 clusters of galaxies observed by XMM-Newton. In 6/19 clusters evidence for a soft X-ray excess is found. Four of these clusters show soft X-ray and O VII line emission from gas with a temperature of ∼0.2 keV. The centroid of this oxygen line is consistent with the redshift of…

2004 • Advances in Space Research

XMM-Newton 1

Real time localization of gamma ray bursts with INTEGRAL

DOI: 10.1016/j.asr.2003.02.074 Bibcode: 2004AdSpR..34.2729M

Götz, D.; Mereghetti, S.; Borkowski, J.

The INTEGRAL satellite has been successfully launched in October 2002 and has recently started its operational phase. The INTEGRAL burst alert system (IBAS) will distribute in real time the coordinates of the gamma ray bursts (GRBs) detected with INTEGRAL. After a brief introduction on the INTEGRAL instruments, we describe the main IBAS characteri…

2004 • Advances in Space Research

INTEGRAL 1

Repetitive X-line Hall current structures over the dawnside ionosphere induced by successive exo-magnetosphere pressure pulses

DOI: 10.5194/angeo-22-4153-2004 Bibcode: 2004AnGeo..22.4153S

Sarafopoulos, D.

This work is a synthesis of observational and magnetosphere model produced results. In the first place, we observe geographic latitude-dependent delays in signature arrival times at dawnside ground magnetograms. We use the IMAGE chain ground station magnetograms associated with in-situ observations obtained from the Wind, ACE, IMP-8, LANL 97A and …

2004 • Annales Geophysicae

Cluster 1

Suprathermal ions of solar and interstellar origin associated with the April 9-12, 2001, CMEs

DOI: 10.1016/j.asr.2003.01.036 Bibcode: 2004AdSpR..34..161B

Klecker, B.; Wimmer-Schweingruber, R. F.; Hilchenbach, M. +2 more

The distribution functions of suprathermal ions associated with the two interplanetary coronal mass ejections in the time period of April 9-12, 2001, are analyzed. The data on ions in the energy range 35-2000 keV/amu were recorded by the (Highly) Suprathermal Time-of-Flight (HSTOF/STOF) Spectrometer on board the Solar and Heliospheric Observatory …

2004 • Advances in Space Research

SOHO 1

BeppoSAX observations of the quasar Markarian 205

DOI: 10.1051/0004-6361:20034575 Bibcode: 2004A&A...421...91F

Petrucci, P. -O.; Courvoisier, T. J. -L.; Beckmann, V. +1 more

We present the first BeppoSAX observation (0.1 to 220 keV) of the quasar Mrk 205. We have searched for the unusual Fe line profile observed in the XMM-Newton spectrum which has been widely discussed in the recent literature. We find no evidence for a broad, ionized Fe line component in our data. We detect for the first time a Co…

2004 • Astronomy and Astrophysics

IUE XMM-Newton 1

A Study on the Characteristics of the Flux Transfer Events Occourred on March 2, 2001

DOI: 10.1002/cjg2.503 Bibcode: 2004ChJG...47..424Z

Liu, Zhen-Xing; Shi, Jian-Kui; Jin, Shu-Ping +2 more

Three flux transfer events (FTEs) were detected in magnetosheath near the south cusp of the dawn side by Cluster II during the interval from 11:00 to 11:15UT on March 2nd, 2001. In this paper, we analyze the magnetic morphology and the plasma characteristics of these events using the magnetic field and plasma data observed by the four spacecrafts …

2004 • Chinese Journal of Geophysics

Cluster 1

ISO: highlights of recent results

DOI: 10.1016/j.asr.2003.04.031 Bibcode: 2004AdSpR..34..528S

Salama, A.

The Infrared Space Observatory (ISO) was the world's first true orbiting infrared observatory. Equipped with four versatile scientific instruments, it was launched by an Ariane 44P in November 1995 and provided astronomers world-wide with a facility of unprecedented sensitivity and capabilities for a detailed exploration of the universe at infrare…

2004 • Advances in Space Research

ISO 1

Evidence for an Ionized Rotating Structure Around RW Aur

DOI: 10.1023/B:ASTR.0000045076.14133.89 Bibcode: 2004Ap&SS.292..691G

Gómez de Castro, Ana I.; Verdugo, Eva

Profiles of the UV semiforbidden lines of C III and Si III of RW Aur have been obtained with the HST/STIS. The C III profile shows two high velocity components at v = +/- 170 km s^-1 and a central one. The Si III profile is very broad (FWHM = 293 km s^-1) and the high velocity components are unresolved. It is shown that the hig…

2004 • Astrophysics and Space Science

eHST 1

Far-Ultraviolet Surveys of Globular Clusters: Searching for the Products of Stellar Collisions and Near Misses

DOI: 10.48550/arXiv.astro-ph/0401600 Bibcode: 2004RMxAC..20...77K

Knigge, C.; Charles, P. A.; Long, K. S. +3 more

Far-ultraviolet (FUV) observations with the Hubble Space Telescope are an excellent way to find and study the hot, blue stellar populations in the cores of globular clusters. These populations include dynamically-formed blue stragglers and interacting binaries (such as cataclysmic variables, i.e. the products of stellar collisions and near misses.…

2004 • Revista Mexicana de Astronomia y Astrofisica Conference Series

eHST 1

A possible feature of thermal matter in relativistic jets of radio-loud quasars

DOI: 10.1051/0004-6361:20040132 Bibcode: 2004A&A...419L...9W

Staubert, R.; Courvoisier, T. J. -L.; Wang, J. -M.

It has been suggested that relativistic jets in quasars may contain a considerable amount of thermal matter. In this paper, we explore the possibility that the Kα line from the thermal matter may appear at tens of keV due to a high Doppler blue-shift. In the jet comoving frame, the energy density of photons originally emitted by the accretion disk…

2004 • Astronomy and Astrophysics

INTEGRAL 1