Zobrazeno 1 - 10
of 149
pro vyhledávání: '"Kapferer W"'
The hot gas that fills the space between galaxies in clusters is rich in metals. In their large potential wells, galaxy clusters accumulate metals over the whole cluster history and hence they retain important information on cluster formation and evo
Externí odkaz:
http://arxiv.org/abs/1101.2807
We use XMM-Newton data of the merging cluster Abell 3667 to analyze its metallicity distribution. A detailed abundance map of the central 1.1x1.1 Mpc region indicates that metals are inhomogeneously distributed in the cluster showing a non-uniform an
Externí odkaz:
http://arxiv.org/abs/0909.5040
Autor:
Kapferer, W., Kronberger, T., Breitschwerdt, D., Schindler, S., van Kampen, E., Kimeswenger, S., Domainko, W., Mair, M., Ruffert, M.
We investigate the efficiency and time-dependence of thermally and cosmic ray driven galactic winds for the metal enrichment of the intra-cluster medium (ICM) using a new analytical approximation for the mass outflow. The spatial distribution of the
Externí odkaz:
http://arxiv.org/abs/0907.3800
We investigate the dependence of star formation and the distribution of the components of galaxies on the strength of ram pressure. Several mock observations in X-ray, H$\alpha$ and HI wavelength for different ram-pressure scenarios are presented. By
Externí odkaz:
http://arxiv.org/abs/0903.3818
Autor:
Arnaud, M., Bohringer, H., Jones, C., McNamara, B., Ohashi, T., Patnaude, D., Arnaud, K., Bautz, M., Blanchard, A., Bregman, J., Chartas, G., Croston, J., David, L., Donahue, M., Fabian, A., Finoguenov, A., Furuzawa, A., Gallagher, S., Haba, Y., Hornschemeier, A., Heinz, S., Kaastra, J., Kapferer, W., Lamer, G., Mahdavi, A., Makishima, K., Matsushita, K., Nakazawa, K., Nulsen, P., Ogle, P., Perlman, E., Ponman, T., Proga, D., Pratt, G., Randall, S., Richards, G., Romer, K., Ruszkowski, M., Schmidt, R., Smith, R., Tananbaum, H., Vrtilek, J., Worrall, D.
The large scale structure of the present Universe is determined by the growth of dark matter density fluctuations and by the dynamical action of dark energy and dark matter. While much progress has been made in recent years in constraining the cosmol
Externí odkaz:
http://arxiv.org/abs/0902.4890
We investigate the influence of ram pressure on the star-formation rate and the distribution of gas and stellar matter in interacting model galaxies in clusters. To simulate the baryonic and non-baryonic components of interacting disc galaxies moving
Externí odkaz:
http://arxiv.org/abs/0807.0083
Autor:
Kutdemir, E., Ziegler, B. L., Peletier, R. F., Da Rocha, C., Kronberger, T., Kapferer, W., Schindler, S., Böhm, A., Jäger, K., Kuntschner, Harald, Verdugo, M.
(Abridged) We study the impact of cluster environment on the evolution of spiral galaxies by examining their structure and kinematics. Rather than two-dimensional rotation curves, we observe complete velocity fields by placing three adjacent and para
Externí odkaz:
http://arxiv.org/abs/0806.4622
We investigate the influence of ram-pressure stripping on the internal gas kinematics of simulated spiral galaxies. Additional emphasis is put on the question of how the resulting distortions of the gaseous disc are visible in the rotation curve and/
Externí odkaz:
http://arxiv.org/abs/0803.3690
We investigate the influence of ram-pressure stripping on the star formation and the mass distribution in simulated spiral galaxies. Special emphasis is put on the question where the newly formed stars are located. The stripping radius from the simul
Externí odkaz:
http://arxiv.org/abs/0801.3759
We investigate distortions in the velocity fields of disc galaxies and their use to reveal the dynamical state of interacting galaxies at different redshift. For that purpose, we model disc galaxies in combined N-body/hydrodynamic simulations. 2D vel
Externí odkaz:
http://arxiv.org/abs/0707.2301