Results 51 to 60 of about 87,085 (268)

Ionized nebulae surrounding brightest cluster galaxies [PDF]

, 2007
We present IFU observations of six emission-line nebulae that surround the central galaxy of cool core clusters. Qualitatively similar nebulae are observed in cool core clusters even when the dynamics and possibly formation and excitation source are ...
A. C. Fabian, Allen, Allen, Allen, Augusto, Bayer-Kim, Becker, Benson, Blanton, Bîrzan, Böhringer, Böhringer, C. S. Crawford, Churazov, Conselice, Cowie, Cowie, Crawford, Crawford, Crawford, Donahue, Draine, Dupke, Ebeling, Ebeling, Edge, Edge, Edge, Egami, Fabian, Fabian, Fabian, Filippenko, Fisher, Gelderman, Gubanov, Hatch, Hatch, Heckman, Heckman, Hu, Hutchings, Jaffe, Jaffe, Johnstone, Johnstone, Johnstone, Kawano, Kennicutt, Leborgne, Loewenstein, Marković, McNamara, McNamara, N. A. Hatch, Osterbrock, Parma, Prandoni, Rafferty, Romanishin, Sabra, Salomé, Sarazin, Sarazin, Sarzi, Schaller, Sparks, Sparks, Struble, Tamura, Veilleux, Wilman, Wise   +72 more
core   +2 more sources

Molecular gas in distant brightest cluster galaxies [PDF]

Astronomy & Astrophysics, 2020
The mechanisms governing the stellar mass assembly and star formation history of brightest cluster galaxies (BCGs) are still being debated. By means of new and archival molecular gas observations we investigate the role of dense megaparsec-scale environments in regulating the fueling of star formation in distant BCGs, through cosmic time.
Castignani, G., Combes, F., Salomé, P., Freundlich, J.   +3 more
openaire   +6 more sources

THE ELLIPTICITIES OF GALAXIES IN GALAXY CLUSTERS OF DIFFERENT MORPHOLOGICAL TYPE

Odessa Astronomical Publications, 2014
The distribution of galaxy ellipticities was analyzed for 207 rich PF galaxy clusters found in the Munster Red Sky Survey Galaxy Catalogue. Clusters with BM types from a comparison with the ACO catalogue were also classified on the new scheme.
E. A. Panko, P. Flin
doaj   +1 more source

Order statistics of the early-type galaxy luminosity function [PDF]

, 2011
We apply order statistics (OS) to the bright end ($M_r < -22$) of the luminosity distribution of early-type galaxies spectroscopically identified in the SDSS DR7 catalog.
Abazajian, Aragón-Salamanca, Bell, Bell, Bernstein, Bhavsar, Blanton, Blanton, Bolzonella, Budavári, Burke, Cannon, Csabai, Davis, De Lucia, Eisenstein, Ellis, Faber, Fisher, Fukugita, Gallazzi, Geller, Geller, Gnedenko, Gumbel, Gunn, Györgyi, Hildebrandt, István Csabai, Kaviraj, Le Fèvre, Lin, Liu, Loh, László Dobos, Maraston, Ostriker, Padmanabhan, Postman, Sandage, Sandage, Sandage, Scott, Stanford, Stoughton, van Dokkum, von der, Wake, Whiley, Wolf, York   +50 more
core   +2 more sources

Diversity in the stellar velocity dispersion profiles of a large sample of brightest cluster galaxies z ≤ 0.3 [PDF]

, 2018
We analyse spatially-resolved deep optical spectroscopy of Brightest Cluster Galaxies (BCGs) located in 32 massive clusters with redshifts of 0.05 $\leq z \leq$ 0.30, to investigate their velocity dispersion profiles.
S. I. Loubser, H. Hoekstra, A. Babul, E. O’Sullivan   +3 more
semanticscholar   +1 more source

A ¹³CO Detection in a Brightest Cluster Galaxy [PDF]

The Astrophysical Journal, 2017
Abstract We present ALMA Cycle 4 observations of CO(1-0), CO(3-2), and 13CO(3-2) line emission in the brightest cluster galaxy (BCG) of RXJ0821+0752. This is one of the first detections of 13CO line emission in a galaxy cluster. Half of the CO(3-2) line emission originates from two clumps of molecular gas that are spatially offset from ...
Brian R. McNamara, Brian R. McNamara, Michael McDonald, P. Salomé, Paul Nulsen, Paul Nulsen, A. N. Vantyghem, Alastair C. Edge, Andrew C. Fabian, M. T. Hogan, M. T. Hogan, Helen Russell, Francoise Combes, Francoise Combes   +13 more
openaire   +6 more sources

Galaxy Orientations in the Coma Cluster [PDF]

, 2007
We have examined the orientations of early-type galaxies in the Coma cluster to see whether the well-established tendency for brightest cluster galaxies to share the same major axis orientation as their host cluster also extends to the rest of the galaxy
Binggeli B., Ciotti L., Coutts A., Lisa Torlina, Michael J. West, Roberto De Propris, West M. J.   +6 more
core   +2 more sources

Cluster Selection and the Evolution of Brightest Cluster Galaxies

The Astrophysical Journal, 2000
Accepted for publication in ApJL. 4 pages including 4 figures, uses emulateapj.sty (included)
Chris A. Collins, Chris A. Collins, Robert G. Mann, Robert G. Mann, Robert G. Mann, Douglas Burke, Douglas Burke   +6 more
openaire   +4 more sources

THE DETERMINATION OF THE MORPHOLOGICAL TYPES OF GALAXY CLUSTERS USING CLUSTER CARTOGRAPHY

Odessa Astronomical Publications, 2016
We discuss the possibility of using the Cluster Cartography set for the determined the morphological types of galaxy clusters. The applied morphological scheme was proposed by Panko (2013).
E. A. Panko, S. I. Emelyanov
doaj   +1 more source

The ROSAT Brightest Cluster Sample — III. Optical spectra of the central cluster galaxies [PDF]

, 1999
We present new spectra of dominant galaxies in X-ray selected clusters of galaxies, which combine with our previously published spectra to form a sample of 256 dominant galaxies in 215 clusters.
C. Crawford, S. Allen, H. Ebeling, A. Edge, A. I. O. Astronomy, U. Cambridge, Institute for Astronomy, Hawaii Usa, D. Physics, U. Durham   +9 more
semanticscholar   +1 more source