Search Publications

C1XS data calibration: X-rays to elements

Howe, C. J.; Kellett, B. J.; Crawford, I. A. +3 more

Binary Clusters Observed with XMM-Newton X-Ray Observatory

Hudaverdi, M.; Beygu, B.; Ercan, N.

Clusters of galaxies are thought to form by accretion of galaxies along the cosmic filaments, and merging of clusters formed earlier. Observations and hydrodynamic simulations show the strong effects of mergers on physical conditions of the Intra Cluster Medium (ICM). In this work, we investigate five relatively nearby Abell clusters; A3705 (z= 0.…

Observational evidences of multiple shock waves in X-ray selected BL Lacerate objects

Kapanadze, B. Z.

The results of optical R-band photometry of three X-ray selected BL Lacertae objects 1ES 0502+675, 1ES 0806+524 and 1ES 1959+650 from the Einstein Slew Survey are presented. The observations are performed during 1997–2006 with the 70-cm meniscus type telescope of Abastumani Astrophysical Observatory. The objects show clear long-term variability wi…

The Cross-Scale Mission

Vaivads, A.; Louarn, P.; Nakamura, R. +7 more

Collisionless space plasmas exhibit complex behavior on many scales. Fortunately, one can identify a small number of processes and phenomena, essentially shocks, reconnection and turbulence that play a predominant role in the dynamics of a plasma. These processes act to transfer energy between locations, scales and modes, a transfer characterized …

Suzaku Observation of Igr J16318-4848

Pottschmidt, Katja; Wilms, Jörn; Kreykenbohm, Ingo +3 more

IGR J16318-4848 is the first example of a new class of highly absorbed X-ray binaries that has been discovered by INTEGRAL. We analyzed the first Suzaku observation of this source (2006 August 14--17), and obtained a spectrum that can be well described by an absorption model (TBabs) and a cutoff powerlaw, plus the Gaussians for the emission lines …

A Massive Disk Galaxy at z > 3 along the Line of Sight of QSO 1508+5714

Tanaka, Ichi; Yamada, Toru; Iye, Masanori +1 more

We have obtained deep images in the BVRIJHKs bands of the field centered on QSO 1508+5714 5714 (Z_em = 4.28) with the Suprime-Cam, FOCAS, and MOIRCS cameras on Subaru telescope. We report here on the detection of a B-dropout galaxy, which is 3.5'' north-west of the QSO sightline. A photometric redshift analysis is presented to complement…

Special issue: Titan, Saturn, and Saturn's Magnetosphere

Dougherty, Michele K.; Barnes, Jason W.; Simon-Miller, Amy A. +2 more

The Mip Experiment of the Rosetta Orbiter: a Mutual Impedance Probe for Waves and Plasmas Diagnosis

Trotignon, Jean-Gabriel; Vallieres, Xavier; Lagoutte, Dominique +3 more

The ROSETTA orbiter and lander will rendez-vous with the comet 67P/ Churyumov-Gerasimenko round 2014 and study it for a period of nearly 2 years. A plasma and wave package, the ROSETTA Plasma Consortium, RPC, is part of the orbiter payload. Five sensors will determine the development and activity of the comet during its approach to the Sun. One of…

Transverse-scale size of Pc3 ULF waves near the exterior cusp

Dunlop, M. W.; Liu, Y. H.; Fraser, B. J. +4 more

The concept of a geomagnetic field line has been widely used in the study of magnetospheric physical phenomena. For example, the mode in which ULF waves propagate relates to the direction of the field, with the Alfven wave mode propagating along the field direction. Very little is known about the perpendicular extent of the propagating wave. In th…

Properties of the ionised gas of circumnuclear star-forming regions in early-type spirals

Terlevich, Roberto; Terlevich, Elena; Díaz, Ángeles I. +1 more

A study of circumnuclear star-forming regions (CNSFRs) in several early-type spirals has been carried out in order to investigate their main properties: stellar and gas kinematics, dynamical masses, ionising stellar masses, chemical abundances and other properties of the ionised gas. Both high resolution (R∼20,000) and moderate resolution (R∼5000)…