Search Publications

Near-infrared integral-field spectroscopy of violent starburst environments

de Grijs, Richard

Near-infrared (NIR) integral-field spectroscopy (IFS) of violent starburst environments at high spatial (and spectral) resolution has the potential to revolutionise our ideas regarding the local interactions between the newly formed massive stars and the interstellar medium (ISM) of their host galaxies. To illustrate this point, I present NIR IFS …

Further Study of Multiple Flux Rope Events at the Magnetopause Observed by TC-1 on 18 March, 2004

Pu, Zu-Yin; Xiao, Chi-Jie; Liu, Zhen-Xing +3 more

From 23:10 to 23:50 UT on 18 March 2004, the Double Star TC-1 spacecraft detected nine flux ropes at the outbound crossing of the southern dawnside magnetopause. During this time period the Cluster constellation was staying in the magnetosheath. The four spacecraft observed that the interplanetary magnetic field (IMF) showed a dominant negative BY…

Late-type X-ray Emitting Binaries in the Solar Neighborhood and in Star Forming Regions

Alcalá, Juan M.; Covino, Elvira; Frasca, Antonio +3 more

We present a spectroscopic and photometric follow-up of binary stars, discovered in a sample of X-ray sources, aimed at a deep characterization of the stellar X-ray population in the solar neighborhood and in Star Forming Regions (SFRs). The sources have been selected from the RasTyc sample, obtained by the cross-correlation between the ROSAT all-…

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…