Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Pierini, Daniele"'
Galaxy clusters' structure, dominated by dark matter, is traced by member galaxies in the optical and hot intra-cluster medium (ICM) in X-rays. We compare the radial distribution of these components and determine the mass-to-light ratio vs. system ma
Externí odkaz:
http://arxiv.org/abs/1501.04286
Autor:
De Looze, Ilse, Baes, Maarten, Boselli, Alessandro, Cortese, Luca, Fritz, Jacopo, Auld, Robbie, Bendo, George J., Bianchi, Simone, Boquien, Médéric, Clemens, Marcel, Ciesla, Laure, Davies, Jonathan, Alighieri, Sperello di Serego, Grossi, Marco, Jones, Anthony, Madden, Suzanne C., Pappalardo, Ciro, Pierini, Daniele, Smith, Matthew W. L., Verstappen, Joris, Vlahakis, Catherine, Zibetti, Stefano
We use dust scaling relations to investigate the hypothesis that Virgo cluster transition-type dwarfs are infalling star-forming field galaxies, which is argued based on their optical features (e.g. disks, spiral arms, bars) and kinematic properties
Externí odkaz:
http://arxiv.org/abs/1308.6130
Autor:
de Hoon, Arjen, Lamer, Georg, Schwope, Axel, Muehlegger, Martin, Fassbender, Rene, Boeohringer, Hans, Lerchster, Mike, Nastasi, Alessandro, Suhada, Robert, Verdugo, Miguel, Dietrich, Joerg P., Brimioulle, Fabrice, Rosati, Piero, Pierini, Daniele, Santos, Joana, Quintana, Hernan, Rabitz, Andrea, Takey, Ali
The XMM-Newton Distant Cluster Project (XDCP) aims at the identification of a well defined sample of X-ray selected clusters of galaxies at redshifts z>0.8. We present a catalogue of the extended sources in one the deepest ~250 ksec XMM-Newton fields
Externí odkaz:
http://arxiv.org/abs/1301.3506
Autor:
Nastasi, Alessandro, Scodeggio, Marco, Fassbender, Rene, Boehringer, Hans, Pierini, Daniele, Verdugo, Miguel, Garilli, Bianca, Franzetti, Paolo
The goal of this paper is twofold. Firstly, we present F-VIPGI, a new version of the VIMOS Interactive Pipeline and Graphical Interface (VIPGI) adapted to handle FORS2 spectroscopic data. Secondly, we investigate the spectro-photometric properties of
Externí odkaz:
http://arxiv.org/abs/1301.2327
Autor:
Alighieri, Sperello di Serego, Bianchi, Simone, Pappalardo, Cirino, Zibetti, Stefano, Auld, Robbie, Baes, Maarten, Bendo, George, Corbelli, Edvige, Davies, Jonathan, Davis, Timothy, De Looze, Ilse, Fritz, Jacopo, Gavazzi, Giuseppe, Giovanardi, Carlo, Grossi, Marco, Hunt, Leslie, Magrini, Laura, Pierini, Daniele, Xilouris, Manolis
Aims. We study the dust content of a large optical input sample of 910 early-type galaxies (ETG) in the Virgo cluster, extending also to the dwarf ETG, and examine the results in relation with those on the other cold ISM components. Methods. We searc
Externí odkaz:
http://arxiv.org/abs/1301.2160
We present VLT-ISAAC NIR spectro-photometric observations of 16 post-starburst (PSB) galaxies aimed at constraining the debated influence of TP-AGB stars on the SED of galaxies with stellar ages of 0.5-2 Gyr, critical for high-redshift studies. PSB g
Externí odkaz:
http://arxiv.org/abs/1205.4717
We present new spectro-photometric NIR observations of 16 post-starburst galaxies especially designed to test for the presence of strong carbon features of thermally pulsing AGB (TP-AGB) stars, as predicted by recent models of stellar population synt
Externí odkaz:
http://arxiv.org/abs/1203.4571
Autor:
Zhang, Yu-Ying, Laganá, Tatiana F., Pierini, Daniele, Puchwein, Ewald, Schneider, Peter, Reiprich, Thomas H.
We have investigated the baryon-mass content in a subsample of 19 clusters of galaxies extracted from the X-ray flux-limited sample HIFLUGCS according to their positions in the sky. For these clusters, we measured total masses and characteristic radi
Externí odkaz:
http://arxiv.org/abs/1109.0390
Autor:
Nastasi, Alessandro, Fassbender, Rene, Böhringer, Hans, Šuhada, Robert, Rosati, Piero, Pierini, Daniele, Verdugo, Miguel, Santos, Joana S., Schwope, Axel D., de Hoon, Arjen, Kohnert, Jan, Lamer, Georg, Mühlegger, Martin, Quintana, Hernan
We report on the discovery of a galaxy cluster at z = 1.490 originally selected as an extended X-ray source in the XMM-Newton Distant Cluster Project. Further observations carried out with the VLT-FORS2 spectrograph allowed the spectroscopic confirma
Externí odkaz:
http://arxiv.org/abs/1106.5784
Autor:
Santos, Joana S., Fassbender, Rene, Nastasi, Alessandro, Böhringer, Hans, Rosati, Piero, Suhada, Robert, Pierini, Daniele, Nonino, Mario, Muehlegger, Martin, Quintana, Hernan, Schwope, Axel D., Lamer, Georg, de Hoon, Arjen, Strazzullo, Veronica
We report on the discovery of a very distant galaxy cluster serendipitously detected in the archive of the XMM-Newton mission, within the scope of the XMM-Newton Distant Cluster Project (XDCP). XMMUJ0044.0-2033 was detected at a high significance lev
Externí odkaz:
http://arxiv.org/abs/1105.5877