Results 31 to 40 of about 142,624 (203)

Galaxy Groups as the Ultimate Probe of AGN Feedback

Galaxies
The co-evolution between supermassive black holes and their environment is most directly traced by the hot atmospheres of dark matter halos. The cooling of the hot atmosphere supplies the central regions with fresh gas, igniting active galactic nuclei ...
Dominique Eckert, Fabio Gastaldello, Ewan O’Sullivan, Alexis Finoguenov, Marisa Brienza, the X-GAP Collaboration   +5 more
doaj   +1 more source

No Evidence of Asymmetrically Enhanced Star Formation in Infalling Galaxies in UNIONS

The Astrophysical Journal
Ram pressure stripping is a well-known environmental quenching mechanism that removes gas from galaxies infalling into groups and clusters. In some extreme examples of ram pressure stripping, galaxies with extended gas tails show evidence of enhanced ...
Lauren M. Foster, Laura C. Parker, Stephen Gwyn, Ian D. Roberts, James E. Taylor, Michael J. Hudson, Alan W. McConnachie, Thomas de Boer   +7 more
doaj   +1 more source

Core to Cosmic Edge: SIMBA-C’s New Take on Abundance Profiles in the Intragroup Medium at z = 0

Universe
We employ the simba-c cosmological simulation to study the impact of its upgraded chemical enrichment model (Chem5) on the distribution of metals in the intragroup medium (IGrM).
Aviv Padawer-Blatt, Zhiwei Shao, Renier T. Hough, Douglas Rennehan, Ruxin Barré, Vida Saeedzadeh, Arif Babul, Romeel Davé, Chiaki Kobayashi, Weiguang Cui, François Mernier, Ghassem Gozaliasl   +11 more
doaj   +1 more source

The Metal Content of the Hot Atmospheres of Galaxy Groups

Universe, 2021
Galaxy groups host the majority of matter and more than half of all the galaxies in the Universe. Their hot (107 K), X-ray emitting intra-group medium (IGrM) reveals emission lines typical of many elements synthesized by stars and supernovae.
Fabio Gastaldello, Aurora Simionescu, Francois Mernier, Veronica Biffi, Massimo Gaspari, Kosuke Sato, Kyoko Matsushita   +6 more
doaj   +1 more source

Compact groups in the UZC galaxy sample

, 2002
Applying an automatic neighbour search algorithm to the 3D UZC galaxy catalogue (Falco 1999) we have identified 291 compact groups (CGs) with redshifts between 1000 and 10000 km/s.
Athanassoula, B. Kelm, Bahcall, Barnes, Barton, Barton, Benoist, Bothun, Cappi, Coziol, Coziol, Davis, de Carvalho, Diaferio, Dressler, Falco, Fisher, Fried, Governato, Heldson, Hernquist, Hickson, Hickson, Hickson, Hickson, Huchra, Huchra, Karachentsev, Kelm, Maia, Mamon, Mamon, Mamon, Mamon, Marzke, Mendes de Oliveira, Montoya, Moore, Mulchaey, Oosterloo, P. Focardi, Ponman, Postman, Prandoni, Ramella, Ratcliffe, Ribeiro, Rubin, Sanders, Somerville, Struble, Tonry, Tresse, Tully, Verdes-Montenegro, Walke, Williams, Withmore, Zabludoff, Zaritsky, Zepf, Zucca   +61 more
core   +1 more source

The DEEP2 galaxy redshift survey: the evolution of the blue fraction in groups and the field [PDF]

, 2007
We explore the behavior of the blue galaxy fraction over the redshift range 0.75
Coil, Alison L., Cooper, Michael C., Croton, Darren J., Davis, Marc, Faber, S. M., Gerke, Brian F., Guhathakurta, Puragra, Koo, David C., Newman, Jeffrey A., Weiner, Benjamin J., Willmer, Christopher N. A., Yan, Renbin   +11 more
core   +1 more source

Tracing the Formation History of Intrahalo Light with Horizon Run 5

The Astrophysical Journal
We investigate the formation history of intrahalo light (IHL) using the high-resolution (∼1 kpc), large-scale (∼1 Gpc) cosmological hydrodynamical simulation Horizon Run 5 (HR5).
Hyungjin Joo, M. James Jee, Juhan Kim, Jaehyun Lee, Jongwan Ko, Changbom Park, Jihye Shin, Owain Snaith, Christophe Pichon, Brad Gibson, Yonghwi Kim   +10 more
doaj   +1 more source

Segregation Effects According to the Evolutionary Stage of Galaxy Groups [PDF]

, 2010
We study segregation phenomena in 57 groups selected from the 2PIGG catalog of galaxy groups. The sample corresponds to those systems located in areas of at least 80% redshift coverage out to 10 times the radius of the groups.
A. L. B. Ribeiro, Adami, Adami, Biviano, Biviano, Capelato, Carlberg, Cupani, Eke, Fadda, Geller, Girardi, Goto, Hou, Huchra, Katgert, La Barbera, Lopes, M. Trevisan, Mahdavi, Menci, Nolthenius, Olsen, Osmond, P. A. A. Lopes, Perea, Popesso, Ramella, Ribeiro, Rines   +29 more
core   +1 more source

Testing Galaxy Formation Models with the Stellar Mass–Halo Mass Relations for Star-forming and Quiescent Galaxies

The Astrophysical Journal
The tight relationship between the stellar mass and halo mass of galaxies is one of the most fundamental scaling relations in galaxy formation and evolution. It has become a critical constraint for galaxy formation models.
Kai Wang, Yingjie Peng
doaj   +1 more source

The Padova-Millennium Galaxy and Group Catalogue (PM2GC): the group-finding method and the PM2GC catalogues of group, binary and single field galaxies

, 2011
We present the construction and describe the properties of the Padova-Millennium Galaxy and Group Catalogue (PM2GC), a galaxy catalogue representative of the general field population in the local Universe.
Balogh, Balogh, Balogh, Barnes, Beers, Bell, Benedetta Vulcani, Berlind, Berrier, Bertin, Bianca M. Poggianti, Blanton, Butcher, Byrd, Carlberg, Cimatti, Cox, Cross, Dressler, Dressler, Driver, Eke, Fasano, Finn, Font, Fritz, Fritz, Geller, Gerke, Gunn, Guo, Halliday, Hashimoto, Henry, Hickson, Huchra, Irwin, Kang, Kroupa, Lewis, Liske, Marinoni, Martínez, McGee, Mihos, Miller, Milvang-Jensen, Moore, Moore, Mulchaey, Murante, Poggianti, Poggianti, Poggianti, Ramella, Ramella, Ramella, Rosa Calvi, Salpeter, Somerville, Springel, Toomre, Tucker, Vulcani, Wang, Weinmann, White, Wilman, Yang, Zabludoff   +69 more
core   +1 more source