Results 51 to 60 of about 60,555 (229)

MASSIVE MOLECULAR GAS FLOWS IN THE A1664 BRIGHTEST CLUSTER GALAXY [PDF]

, 2013
We report ALMA Early Science CO(1–0) and CO(3–2) observations of the brightest cluster galaxy (BCG) in A1664. The BCG contains 1.1 × 1010 M☉ of molecular gas divided roughly equally between two distinct velocity systems: one from −250 to +250 km s−1 ...
H. Russell, B. McNamara, B. McNamara, B. McNamara, A. Edge, P. Nulsen, R. Main, A. Vantyghem, F. Combes, A. C. Fabian, N. Murray, P. Salomé, R. Wilman, S. Baum, M. Donahue, C. O’Dea, J. Oonk, Grant R. Tremblay, G. Voit   +18 more
semanticscholar   +1 more source

Ionized nebulae surrounding brightest cluster galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 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 different.
N. A. Hatch, C. S. Crawford, A. C. Fabian   +2 more
openaire   +3 more sources

Comparing Globular Cluster System Properties with Host Galaxy Environment

The Astrophysical Journal, 2023
We present Hubble Space Telescope photometry in the optical (F475X) and near-infrared (F110W) bands of the globular cluster (GC) systems of the inner halos of a sample of 15 massive elliptical galaxies.
Kate Hartman, William E. Harris, John P. Blakeslee, Chung-Pei Ma, Jenny E. Greene   +4 more
doaj   +1 more source

PS1-12sk IS A PECULIAR SUPERNOVA FROM A He-RICH PROGENITOR SYSTEM IN A BRIGHTEST CLUSTER GALAXY ENVIRONMENT [PDF]

, 2013
We report on our discovery and observations of the Pan-STARRS1 supernova (SN) PS1-12sk, a transient with properties that indicate atypical star formation in its host galaxy cluster or pose a challenge to popular progenitor system models for this class of
N. Sanders, A. Soderberg, R. Foley, R. Chornock, D. Milisavljevic, R. Margutti, M. Drout, M. Moe, E. Berger, Warren R. Brown, R. Lunnan, S. Smartt, M. Fraser, R. Kotak, L. Magill, K. Smith, D. Wright, K. Huang, Y. Urata, J. S.Mulchaey, A. Rest, D. Sand, L. Chomiuk, A. Friedman, R. Kirshner, G. H. Marion, J. Tonry, W. Burgett, K. Chambers, K. Hodapp, R. Kudritzki, P. Price   +31 more
semanticscholar   +1 more source

A candidate supermassive binary black hole system in the brightest cluster galaxy of RBS 797 [PDF]

, 2013
Context. The radio source at the center of the cool-core galaxy cluster RBS 797 ( z  = 0.35) is known to exhibit a misalignment of its radio jets and lobes observed at different VLA scales, with the innermost ~kpc-scale jets being almost orthogonal to ...
M. Gitti, M. Giroletti, G. Giovannini, L. Feretti, E. Liuzzo   +4 more
semanticscholar   +1 more source

GLOBULAR CLUSTER SYSTEMS IN BRIGHTEST CLUSTER GALAXIES. II. NGC 6166 [PDF]

The Astrophysical Journal, 2016
ABSTRACT We present new deep photometry of the globular cluster system (GCS) around NGC 6166, the central supergiant galaxy in Abell 2199. Hubble Space Telescope data from the Advanced Camera for Surveys and WFC3 cameras in F475W and F814W are used to determine the spatial distribution of the GCS, its metallicity distribution function ...
William E. Harris, John P. Blakeslee, Bradley C. Whitmore, Oleg Y. Gnedin, Douglas Geisler, Barry Rothberg   +5 more
openaire   +3 more sources

BRIGHTEST CLUSTER GALAXIES AND CORE GAS DENSITY IN REXCESS CLUSTERS [PDF]

The Astrophysical Journal, 2010
We investigate the relationship between brightest cluster galaxies (BCGs) and their host clusters using a sample of nearby galaxy clusters from the Representative XMM Cluster Structure Survey (REXCESS). The sample was imaged with the Southern Observatory for Astrophysical Research (SOAR) in R band to investigate the mass of the old stellar population ...
Haarsma, D., Leisman, L., Donahue, M., Bruch, S., Böhringer, H., Croston, J., Pratt, G., Voit, G., Arnaud, M., Pierini, D.   +9 more
openaire   +3 more sources

The XMM Cluster Survey: the interplay between the brightest cluster galaxy and the intracluster medium via AGN feedback [PDF]

, 2012
Using a sample of 123 X-ray clusters and groups drawn from the XMM Cluster Survey first data release, we investigate the interplay between the brightest cluster galaxy (BCG), its black hole and the intracluster/group medium (ICM).
J. Stott, R. Hickox, A. Edge, C. Collins, M. Hilton, C. Harrison, A. Romer, P. Rooney, S. Kay, C. Miller, M. Sahlén, E. Lloyd-Davies, N. Mehrtens, B. Hoyle, A. Liddle, P. T. P. Viana, I. G. McCarthy, J. Schaye, C. Booth   +18 more
semanticscholar   +1 more source

Precision Modeling of JWST's First Cluster Lens SMACS J0723.3–7327

The Astrophysical Journal, 2023
Exploiting the fundamentally achromatic nature of gravitational lensing, we present a lens model for the massive galaxy cluster SMACS J0723.3−7323 (SMACS J0723; z = 0.388) that significantly improves upon earlier work.
Guillaume Mahler, Mathilde Jauzac, Johan Richard, Benjamin Beauchesne, Harald Ebeling, David Lagattuta, Priyamvada Natarajan, Keren Sharon, Hakim Atek, Adélaïde Claeyssens, Benjamin Clément, Dominique Eckert, Alastair Edge, Jean-Paul Kneib, Anna Niemiec   +14 more
doaj   +1 more source

A BRIGHTEST CLUSTER GALAXY WITH AN EXTREMELY LARGE FLAT CORE [PDF]

, 2012
Hubble Space Telescope images of the galaxy cluster A2261, obtained as part of the Cluster Lensing And Supernova survey with Hubble, show that the brightest galaxy in the cluster, A2261-BCG, has the largest core yet detected in any galaxy.
M. Postman, T. Lauer, M. Donahue, G. Graves, D. Coe, J. Moustakas, A. Koekemoer, L. Bradley, H. Ford, C. Grillo, A. Zitrin, D. Lemze, T. Broadhurst, L. Moustakas, B. Ascaso, E. Medezinski, D. Kelson   +16 more
semanticscholar   +1 more source