Zobrazeno 1 - 10
of 204
pro vyhledávání: '"Fassbender, R."'
Autor:
Lepore, M., Bongiorno, A., Tozzi, P., Travascio, A., Zappacosta, L., Merlin, E., Fassbender, R.
Publikováno v:
A&A 668, A123 (2022)
XDCP0044.0-2033 is the most massive galaxy cluster known at z>1.5 and its core shows a high density of galaxies which are experiencing mergers and hosting nuclear activity. We present a multi-wavelength study of a region located 157 kpc from the cent
Externí odkaz:
http://arxiv.org/abs/2211.04244
Autor:
Travascio, A., Bongiorno, A., Tozzi, P., Fassbender, R., De Gasperin, F., Cardone, V. F., Zappacosta, L., Vietri, G., Merlin, E., Bischetti, M., Piconcelli, E., Duras, F., Fiore, F., Menci, N., Mazzotta, P., Nastasi, A.
Undisturbed galaxy clusters are characterized by a massive and large elliptical galaxy at their center, i.e. the Brightest Cluster Galaxy (BCG). How these central galaxies form is still debated. According to most models, a typical epoch for their ass
Externí odkaz:
http://arxiv.org/abs/2008.11132
Publikováno v:
A&A 634, A137 (2020)
The analysis of the cluster environment is a valuable instrument to investigate the origin of AGN and star-forming galaxies gas fuelling and trigger mechanisms. To this purpose, we present a detailed analysis of the point-like X-ray sources in the Bu
Externí odkaz:
http://arxiv.org/abs/1912.00075
Autor:
Giallongo, E., Menci, N., Grazian, A., Fassbender, R., Fontana, A., Paris, D., Pentericci, L.
We have discovered 11 ultra-faint ($r\lesssim 22.1$) low surface brightness (LSB, central surface brightness $23\lesssim \mu_r\lesssim 26$) dwarf galaxy candidates in one deep Virgo field of just $576$ arcmin$^2$ obtained by the Large Binocular Camer
Externí odkaz:
http://arxiv.org/abs/1509.07402
Autor:
Romeo, A. D., Kang, Xi, Contini, E., Sommer-Larsen, J., Fassbender, R., Napolitano, N. R., Antonuccio-Delogu, V., Gavignaud, I.
Publikováno v:
A&A 581, A50 (2015)
By means of our own cosmological-hydrodynamical simulation and semi-analytical model we studied galaxy population properties in clusters and groups, spanning over 10 different bands from UV to NIR, and their evolution since redshift z=2. We compare o
Externí odkaz:
http://arxiv.org/abs/1505.06091
Autor:
Tozzi, P., Santos, J. S., Jee, M. J., Fassbender, R., Rosati, P., Nastasi, A., Forman, W., Sartoris, B., Borgani, S., Boehringer, H., Altieri, B., Pratt, G. W., Nonino, M., Jones, C.
We report the analysis of the Chandra observation of XDCP J0044.0-2033, a massive, distant (z=1.579) galaxy cluster discovered in the XDCP survey. The total exposure time of 380 ks with Chandra ACIS-S provides the deepest X-ray observation currently
Externí odkaz:
http://arxiv.org/abs/1412.5200
Autor:
Fassbender, R., Nastasi, A., Santos, J. S., Lidman, C., Verdugo, M., Koyama, Y., Rosati, P., Pierini, D., Padilla, N., Romeo, A. D., Menci, N., Bongiorno, A., Castellano, M., Cerulo, P., Fontana, A., Galametz, A., Grazian, A., Lamastra, A., Pentericci, L., Sommariva, V., Strazzullo, V., Suhada, R., Tozzi, P.
Publikováno v:
A&A 568, A5 (2014)
We investigate various galaxy population properties of the massive X-ray luminous galaxy cluster XDCP J0044.0-2033 at z=1.58, which constitutes the most extreme matter density peak at this redshift currently known. We analyze deep VLT/HAWK-I NIR data
Externí odkaz:
http://arxiv.org/abs/1406.3037
Autor:
Pointecouteau, E., Reiprich, T. H., Adami, C., Arnaud, M., Biffi, V., Borgani, S., Borm, K., Bourdin, H., Brueggen, M., Bulbul, E., Clerc, N., Croston, J. H., Dolag, K., Ettori, S., Finoguenov, A., Kaastra, J., Lovisari, L., Maughan, B., Mazzotta, P., Pacaud, F., de Plaa, J., Pratt, G. W., Ramos-Ceja, M., Rasia, E., Sanders, J., Zhang, Y. -Y., Allen, S., Boehringer, H., Brunetti, G., Elbaz, D., Fassbender, R., Hoekstra, H., Hildebrandt, H., Lamer, G., Marrone, D., Mohr, J., Molendi, S., Nevalainen, J., Ohashi, T., Ota, N., Pierre, M., Romer, K., Schindler, S., Schrabback, T., Schwope, A., Smith, R., Springel, V., von der Linden, A.
Major astrophysical questions related to the formation and evolution of structures, and more specifically of galaxy groups and clusters, will still be open in the coming decade and beyond: what is the interplay of galaxy, supermassive black hole, and
Externí odkaz:
http://arxiv.org/abs/1306.2319
Publikováno v:
Advances in Astronomy, Volume 2012 (2012), Article ID 138380, 15 pages
Observational constraints on the average radial distribution profile of AGN in distant galaxy clusters can provide important clues on the triggering mechanisms of AGN activity in dense environments and are essential for a completeness evaluation of c
Externí odkaz:
http://arxiv.org/abs/1203.5337
Autor:
Pierini, D., Suhada, R., Fassbender, R., Nastasi, A., Boehringer, H., Salvato, M., Pratt, G. W., Lerchster, M., Rosati, P., Santos, J. S., de Hoon, A., Kohnert, J., Lamer, G., Mohr, J. J., Muehlegger, M., Quintana, H., Schwope, A., Biffi, V., Chon, G., Giodini, S., Koppenhoefer, J., Verdugo, M., Ziparo, F., Afonso, P. M. J., Clemens, C., Greiner, J., Kruehler, T., Yoldas, A. Kupcu, E., F. Olivares, Rossi, A., Yoldas, A.
The XMM-Newton Distant Cluster Project is a serendipitous survey for clusters of galaxies at redshifts z>=0.8 based on deep archival XMM-Newton observations. ... Low-significance candidate high-z clusters are followed up with the seven-channel imager
Externí odkaz:
http://arxiv.org/abs/1201.1925