Galactic Dynamics Research Group
--Hot Topic--
--News--
Fri, 24 Jun 2011 14:00:00
TALK: Bartosz Dabrowski: Preparation of ALMA observing proposals using the Observing Tool

Astronomical Institute, Academy of Sciences, Ondrejov

Abstract
The Atacama Large Millimeter/submillimeter Array (ALMA) is an array of high-precision antennas operating at millimeter/submillimeter ... more
Wed, 22 Jun 2011 14:00:00
TALK: Yasufumi Kojima: Relativistic magnetic reconnection at X-type neutral points

Department of Physics, Hiroshima University, Japan

Abstract
The relativistic effects in the oscillatory damping of magnetic disturbances near two-dimensional X-points are investigated. ... more
Mon, 20 Jun 2011 14:00:00
TALK: Yasufumi Kojima: Recoil velocity induced by electromagnetic radiation

Department of Physics, Hiroshima University, Japan

Abstract
We examine the recoil velocity induced by the superposition of the magnetic dipole and quadrupole ... more
Tue, 3 May 2011 14:00:00
TALK: Jan Cechura: Hydrodynamics in X-ray binaries - A new hydrocode for wind simulation

Astronomical Institute, Academy of Sciences, Prague

Abstract
The Roche lobe overflow and the isotropic radial stellar wind were traditionally considered as two ... more
Showing 5 to 8 of total 162 records
--Detail--
Tue, 29 Nov 2011 10:00:00
TALK: Devaky Kunneriath: The Galactic center region

Astronomical Institute, Academy of Sciences, Prague

Abstract
High angular resolution radio interferometry at high frequencies enables us to study in great detail the emission mechanisms of the central region of our Galaxy, which harbours the supermassive black hole source Sagittarius A*. This talk will focus on recent results from our observations with two radio interferometer arrays, the Combined Array for Research in Millimeter-wave Astronomy (CARMA) and Australia Telescope Compact Array (ATCA), and the infrared Very Large Telescope (VLT). I will also present results from the flare modelling of Sgr A* based on multi-wavelength observing campaigns, along with high-resolution maps and a spectral index analysis of the extended emission of the central region (the "mini-spiral") at 3 and 1.3 mm, and compare them to maps in near-infrared Br-gamma (2.16 micron) and mid-indfrared (8.6 micron) wavelengths. I will discuss physical properties of gas and dust that can be deduced from these measurements, such as spectral index, emission measure, density, mass, and extinction.

Location: Seminar held at the Institute of Theoretical Physics, Praha-Troja


If you wish to give a talk at our seminar, please do not hesitate to contact Adam Ruzicka (adam.ruzicka@asu.cas.cz).
--Publications--
10/2011 - Wunsch, R., Silich, S., Palous, J., Tenorio-Tagle, G., Munoz-Tunon, C., Evolution of Super Star Cluster Winds with Strong Cooling
ApJ, Volume 740, Issue 2, article id. 75
08/2011 - Bisbas, T. G., Wunsch, R., Whitworth, A. P., Hubber, D. A., Walch, S.,
ApJ, Volume 736, Issue 2, article id. 142
08/2011 - Ortolani, S., Barbuy, B., Momany, Y., Saviane, I., Bica, E., Jilkova, L., Salerno, G. M.; Jungwiert, B., A Fossil Bulge Globular Cluster Revealed by very Large Telescope Multi-conjugate Adaptive Optics
ApJ, Volume 737, Issue 1, article id. 31
Showing 1 to 3 of total 62 records
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