Výsledky vyhledávání

Report

Dynamics of the NGC 4636 Globular Cluster System - An extremely dark matter dominated galaxy?

Autor: Schuberth, Y., Richtler, T., Dirsch, B., Hilker, M., Larsen, S. S., Kissler-Patig, M., Mebold, U.

We present the first dynamical study of the globular cluster system of NGC 4636. This giant elliptical galaxy is claimed to be extremely dark matter dominated, according to X-ray observations. Using the VLT with FORS2/MXU, we obtained velocities for

Externí odkaz: http://arxiv.org/abs/astro-ph/0604309

Zobrazit plný text záznamu

Report

The Parkes HI Survey of the Magellanic System

Autor: Bruens, C., Kerp, J., Staveley-Smith, L., Mebold, U., Putman, M. E., Haynes, R. F., Kalberla, P. M. W., Muller, E., Filipovic, M. D.

Publikováno v: Astron.Astrophys.432:45-67,2005

We present the first fully and uniformly sampled, spatially complete HI survey of the entire Magellanic System with high velocity resolution, performed with the Parkes Telescope. The final data-cubes have an rms noise of sigma ~ 0.05 K and an effecti

Externí odkaz: http://arxiv.org/abs/astro-ph/0411453

Zobrazit plný text záznamu

Report

The head-tail structure of high-velocity clouds - A survey of the northern sky

Autor: Bruens, C., Kerp, J., Kalberla, P. M. W., Mebold, U.

We present new observational results on high-velocity clouds (HVCs) based on an analysis of the Leiden/Dwingeloo HI survey. We cataloged all HVCs with NHI > 1 10^19 cm^-2 and found 252 clouds that form a representative flux limited sample. The detail

Externí odkaz: http://arxiv.org/abs/astro-ph/0003110

Zobrazit plný text záznamu

Report

BUSCA: A Telescope Instrumentation for Simultaneous Imaging in 4 Optical Bands

Autor: Reif, K., Bagschik, K., de Boer, K. S., Schmoll, J., Mueller, Ph., Poschmann, H, Klink, G, Kohley, R, Heber, U., Mebold, U.

The "Bonn University Simultaneous CAmera" (BUSCA) is a CCD camera system which allows simultaneous direct imaging of the same sky area in four colors. The optics are designed for an f/8 beam and four 4Kx4K CCDs with 15m pixels covering a field of vie

Externí odkaz: http://arxiv.org/abs/astro-ph/9903177

Zobrazit plný text záznamu

Report

A search for soft X-ray emission associated with prominent high-velocity-cloud complexes

Autor: Kerp, J., Burton, W. B., Egger, R., Freyberg, M. J., Hartmann, Dap, Kalberla, P. M. W., Mebold, U., Pietz, J.

We correlate the ROSAT 1/4 keV all-sky survey with the Leiden/Dwingeloo HI survey, looking for soft X-ray signatures of prominent high-velocity-cloud (HVC) complexes. We study the transfer of 1/4 keV photons through the interstellar medium in order t

Externí odkaz: http://arxiv.org/abs/astro-ph/9810307

Zobrazit plný text záznamu