Results 1 to 10 of about 48,400 (49)

Double-nucleus elliptical MCG-01-12-005 in an X-ray emitting cluster of galaxies [PDF]

, 2015
The scenario of galaxy formation is believed to follow a structure that builds up from the bottom, with large galaxies being formed by several merging episodes of smaller ones.
Bassani, Loredana, Fiocchi, Mariateresa, Nesci, Roberto, Parisi, Pietro   +3 more
core   +2 more sources

The Gravitational Lens CFRS03.1077 [PDF]

, 2002
An exquisite gravitational arc with a radius of 2.1" has been discovered around the z = 0.938 field elliptical galaxy CFRS03.1077 during HST observations of Canada-France Redshift Survey (CFRS) fields.
A. Matzkin, Crampton D., David Crampton, David Schade, F. Hammer, Jorgensen I., Miralda-Escude J., O. Le Fevre, S. J. Lilly, Warren S. J.   +9 more
core   +4 more sources

Fresh Activity in Old Systems: Radio AGN in Fossil Groups of Galaxies

, 2012
We present the first systematic 1.4 GHz Very Large Array radio continuum survey of fossil galaxy group candidates. These are virialized systems believed to have assembled over a gigayear in the past through the merging of galaxy group members into a ...
Bîrzan, Cisternas, Condon, Corbin, D'Onghia, David, De Robertis, Eric M. Wilcots, Jones, Kelley M. Hess, La Barbera, Mendes de Oliveira, Mendes de Oliveira, Mulchaey, Santos, Schawinski, Sun, Thomson, Tozzi, Ulmer, van Gorkom, Victoria L. Hartwick, Vikhlinin, White, Wise, Yamagata   +25 more
core   +1 more source

The orientation of galaxy pairs with filamentary structures: dependence on morphology

, 2018
Aims. With the aim of performing an analysis of the orientations of galaxy pair systems with respect to the underlying large-scale structure, we study the alignment between the axis connecting the pair galaxies and the host cosmic filament where the pair
Alonso, Sol, Coldwell, Georgina, Duplancic, Fernanda, Jofré, M. Rosa Muñoz, Lambas, Diego G., Mesa, Valeria   +5 more
core   +1 more source

Elliptical Galaxies with Emission Lines from the Sloan Digital Sky Survey

, 2005
We present the results of 11 elliptical galaxies with strong nebular emission lines during our study of star formation history along the Hubble sequence. After removing the dilution from the underlying old stellar populations by use of stellar population
Barger A J, Blanton, Couch W J, de Freitas Pacheco J A, de Souza RE, de Vaucouleurs G, de Vaucouleurs G, Fukugita M, Gonzalez Delgado R, Gonzalez Delgado R, Graham A W, Gu Q, Gunn J E, Guzman R, Ho L, Huang J, Kauffmann G, Larson R B, Lei Shi, Maza J, Moshir M, Qiu-He Peng, Qiu-Sheng Gu, Sanders D B, Schmitt H R, Shi L, Terlevich R, Tremaine S, Tremaine S, White S D M, Wu H, Xin-Lian Luo, Ying-He Zhao, Zhi-Xin Peng, Zou Z   +34 more
core   +1 more source

A New Empirical Model for the Structural Analysis of Early-type Galaxies and a Critical Review of the Nuker Model

, 2003
The Nuker law was designed to match the inner few (~3-10) arcseconds of predominantly nearby (< 30 Mpc) early-type galaxy light-profiles; it was never intended to describe an entire profile.
A. Asensio Ramos, Alister W. Graham, Andredakis Y. C., Binggeli B., Caon N., Caon N., D'Onofrio M., Davies J. I., de Vaucouleurs G., I. Trujillo, James P. A., Marquez I., Peter Erwin, Young C. K., Zhao H., Zhao H.   +15 more
core   +1 more source

From voids to filaments: environmental transformations of galaxies in the SDSS

, 2017
We investigate the impact of filament and void environments on galaxies, looking for residual effects beyond the known relations with environment density. We quantified the host environment of galaxies as the distance to the spine of the nearest filament,
Kuutma, Teet, Tamm, Antti, Tempel, Elmo
core   +1 more source

On the Origin of Density Cusps in Elliptical Galaxies [PDF]

, 1998
We investigated the dynamical reaction of the central region of galaxies to a falling massive black hole by N-body simulations. As the initial galaxy model, we used an isothermal King model and placed a massive black hole at around the half-mass radius ...
Junichiro Makino, Makino J., Taro Nakano
core   +3 more sources

Lopsidedness of cluster galaxies in modified gravity

, 2010
We point out an interesting theoretical prediction for elliptical galaxies residing inside galaxy clusters in the framework of modified Newtonian dynamics (MOND), that could be used to test this paradigm.
A. Knebe, Benoit Famaey, C. Llinares, F. Combes, F. Donato ., G. Gentile, G.W. Angus, H. Zhao, HongSheng Zhao, L. Ciotti, P. Londrillo, P.J.E. Peebles, S.S. McGaugh, Xufen Wu   +13 more
core   +2 more sources

Giant Halos in Dwarf Irregular Galaxies vs. Dwarf Elliptical Galaxies

, 2005
We present a discovery of a giant stellar halo in NGC 6822, a dwarf irregular galaxy in the Local Group. This halo is mostly made of old red giants, showing striking features: 1) it is several times larger than the main body of the galaxy seen in the ...
Hwang, Narae, Lee, Myung Gyoon
core   +1 more source