Results 11 to 20 of about 49,160 (208)

On the Gas Surrounding High Redshift Galaxy Clusters [PDF]

Publications of the Astronomical Society of Australia, 2000
Francis & Hewett (1993) identified two 10-Mpc scale regions of the high redshift universe that were seemingly very overdense in neutral hydrogen. Subsequent observations showed that at least one of these gas-rich regions enveloped a cluster of galaxies ...
Binette, Bruce E. Woodgate, Campos, Colless, Djorgovski, Francis, Greg M. Wilson, Mar, Martínez-González, Mo, Paul J. Francis, Pentericci, Pentericci, Véron   +13 more
core   +5 more sources

Galaxy clusters at high redshift and evolution of brightest cluster galaxies [PDF]

The Astrophysical Journal, 2011
Identification of high redshift clusters is important for studies of cosmology and cluster evolution. Using photometric redshifts of galaxies, we identify 631 clusters from the Canada-France-Hawaii Telescope (CFHT) Wide field, 202 clusters from the CHFT ...
Abazajian, Ascaso, Bahcall, Brodwin, Brodwin, Cardamone, Castellano, Chiaberge, Coe, Croft, Csabai, Demarco, Donahue, Egami, Eisenhardt, Finoguenov, Gilbank, Gladders, Goto, Hao, Hicks, Hoyle, Hsieh, Ilbert, J. L. Han, Knobel, Lauer, Lilly, Liu, Matarrese, McNamara, Miley, Mobasher, Mullis, Muzzin, O’Dea, Papovich, Reiprich, Rines, Sanders, Stanford, Stanford, Stott, Thanjavur, Vikhlinin, Wang, Wen, Wilson, Z. L. Wen   +48 more
core   +2 more sources

The K Band Luminosity Functions of Galaxies in High Redshift Clusters [PDF]

Proceedings of the International Astronomical Union, 2004
K band luminosity functions (LFs) of three, massive, high redshift clusters of galaxies are presented. The evolution of K*, the characteristic magnitude of the LF, is consistent with purely passive evolution, and a redshift of forma tion z = 1.5-2 ...
Ellis, S. C., Jones, L. R.
core   +2 more sources

Modelling galaxy clustering at high redshift [PDF]

Monthly Notices of the Royal Astronomical Society, 1998
We discuss the theoretical interpretation of observational data concerning the clustering of galaxies at high redshifts. Building on the theoretical machinery developed by Matarrese et al. (1997), we make detailed quantitative predictions of galaxy clustering statistics for a variety of cosmological models, taking into account differences in spatial ...
MOSCARDINI, LAURO, COLES P., LUCCHIN, FRANCESCO, MATARRESE, SABINO   +3 more
openaire   +2 more sources

HIROCS – a galaxy cluster survey at high redshifts [PDF]

Proceedings of the International Astronomical Union, 2004
As a step towards our understanding of galaxy evolution and for testing predictions of cosmological models we started a survey for galaxy clusters intending to identify candidates out to redshifts of ~1.5: HIROCS (= Heidelberg InfraRed/Optical Cluster Survey) is a multi-color survey (B, R, i, z and H) covering 11 square degrees in four fields on the ...
Falter, S., Roeser, H. -J., Hippelein, H., Bell, E., Wolf, C.   +4 more
openaire   +2 more sources

High redshift x-ray galaxy clusters [PDF]

SPIE Newsroom, 2007
The current generation of X-ray observatories like Chandra allows studies with very fine spatial details. It is now possible to resolve X-ray point sources projected into the cluster diffuse emission and exclude them from the analysis to estimate the ``correct'' X-ray observables. In order to verify the incidence of point sources on the cluster thermal
Gioia, I., Fanti, R., Fanti, C., Branchesi, M.   +3 more
openaire   +5 more sources

Understanding the non-linear clustering of high-redshift galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2017
We incorporate the non-linear clustering of dark matter halos, as modelled by Jose et al. (2016) into the halo model to better understand the clustering of Lyman break galaxies (LBGs) in the redshift range $z=3-5$. We find that, with this change, the predicted LBG clustering increases significantly on quasi-linear scales ($0.1 \leq r\,/\,h^{-1} \,{\rm ...
Jose, C., Baugh, C. M., Lacey, C. G., Subramanian, K.   +3 more
openaire   +3 more sources

Galaxy Merger Candidates in High-redshift Cluster Environments [PDF]

The Astrophysical Journal, 2017
Abstract We compile a sample of spectroscopically and photometrically selected cluster galaxies from four high-redshift galaxy clusters ( ) from the Spitzer Adaptation of the Red-Sequence Cluster Survey (SpARCS), and a comparison field sample selected from the UKIDSS Deep ...
A. G. Delahaye, T. M. A. Webb, J. Nantais, A. DeGroot, G. Wilson, A. Muzzin, H. K. C. Yee, R. Foltz, A. G. Noble, R. Demarco, A. Tudorica, M. C. Cooper, C. Lidman, S. Perlmutter, B. Hayden, K. Boone, J. Surace   +16 more
openaire   +4 more sources

New spectroscopic confirmations of high-redshift galaxy clusters [PDF]

Astronomy & Astrophysics, 2005
We present new spectroscopic data in the field of five high-redshift (z>=0.6) candidate galaxy clusters, drawn from the EIS Cluster Candidate Catalog. A total of 327 spectra were obtained using FORS1 at the VLT, out of which 266 are galaxies with secure redshifts.
Olsen, L.F., Zucca, E., Bardelli, S., Benoist, C., da Costa, L., Jørgensen, H.E., Biviano, A., Ramella, M.   +7 more
openaire   +3 more sources

The clustering and host haloes of galaxy mergers at high redshift [PDF]

Monthly Notices of the Royal Astronomical Society, 2009
10 pages, 5 figures, accepted in MNRAS, version matches published ...
Wetzel, Andrew R., Cohn, J. D., White, Martin   +2 more
openaire   +2 more sources