Results 121 to 130 of about 2,234,166 (364)

Bayesian Cluster Finder: Clusters in the CFHTLS Archive Research Survey

, 2011
The detection of galaxy clusters in present and future surveys enables measuring mass-to-light ratios, clustering properties, galaxy cluster abundances and therefore, constraining cosmological parameters.
Adami, Andreon, Ascaso, Ascaso, Ascaso, B. Ascaso, Baldry, Benítez, Blanton, Blanton, Botzler, Brown, Carlstrom, Chiaberge, Coleman, Couch, D. Wittman, Dalton, Demarco, Donahue, Dong, Eisenhardt, Erben, Gal, Gal, Galametz, Gladders, Gladders, Goto, Grazian, Grove, Hansen, Harsono, Huchra, Ilbert, Kepner, Kim, Kinney, Koester, Koester, Landy, Lidman, Lopes, López-Cruz, Mei, Mei, Menanteau, Milkeraitis, Miller, Moran, Muzzin, N. Benítez, Nakamura, Nakata, Navarro, Olsen, Pacaud, Postman, Postman, Postman, Ramella, Ramella, Rosati, Schechter, Schuecker, Shectman, Szabo, Treu, Tyson, van Breukelen, Way, White, Wilson, Wilson, Wittman, Wittman, Zaritsky, Zaritsky   +77 more
core   +1 more source

The Extended Virgo Cluster Catalog [PDF]

, 2014
We present a new catalog of galaxies in the wider region of the Virgo cluster, based on the Sloan Digital Sky Survey (SDSS) Data Release 7. The Extended Virgo Cluster Catalog (EVCC) covers an area of 725 deg^2 or 60.1 Mpc^2.
Chung, Jiwon, Jerjen, Helmut, Kim, Suk, Lee, Woong, Lee, Youngdae, Lisker, Thorsten, Pak, Mina, Rey, Soo-Chang, Sung, Eon-Chang, Yi, Wonhyeong   +9 more
core   +3 more sources

Contribution of stripped nuclear clusters to globular cluster and ultracompact dwarf galaxy populations [PDF]

, 2014
We use the Millennium II cosmological simulation combined with the semi-analytic galaxy formation model of Guo et al. to predict the contribution of galactic nuclei formed by the tidal stripping of nucleated dwarf galaxies to globular cluster (GC) and ...
J. Pfeffer, Brendan Griffen, H. Baumgardt, M. Hilker   +3 more
semanticscholar   +1 more source

Galaxy cluster mergers [PDF]

Monthly Notices of the Royal Astronomical Society, 2009
We present the results of an Eulerian adaptive mesh refinement (AMR) hydrodynamical and N-body simulation in a $ $CDM cosmology. The simulation incorporates common cooling and heating processes for primordial gas. A specific halo finder has been designed and applied in order to extract a sample of galaxy clusters directly obtained from the simulation ...
Susana Planelles, Vicent Quilis
openaire   +3 more sources

Random discrete probability measures based on a negative binomial process

Canadian Journal of Statistics, EarlyView.
Abstract A distinctive functional of the Poisson point process is the negative binomial process for which the increments are not independent but are independent conditional on an underlying gamma variable. Using a new point process representation for the negative binomial process, we generalize the Poisson–Kingman distribution and its corresponding ...
Sadegh Chegini, Mahmoud Zarepour
wiley   +1 more source

Test of Cosmic Web-feeding Model for Star Formation in Galaxy Clusters in the COSMOS Field

The Astrophysical Journal
It is yet to be understood how large-scale environments influence star formation activity in galaxy clusters. One recently proposed mechanism is that galaxy clusters can remain star forming when fed by infalling groups and star-forming galaxies from ...
Eunhee Ko, Myungshin Im, Seong-Kook Lee, Clotilde Laigle   +3 more
doaj   +1 more source

Weighing the Giants – III. Methods and measurements of accurate galaxy cluster weak-lensing masses [PDF]

, 2012
We report weak-lensing masses for 51 of the most X-ray luminous galaxy clusters known. This cluster sample, introduced earlier in this series of papers, spans redshifts 0.15 < z_cl < 0.7, and is well suited to calibrate mass proxies for current cluster ...
D. Applegate, A. V. D. Linden, P. Kelly, M. Allen, S. Allen, P. Burchat, D. Burke, H. Ebeling, A. Mantz, R. G. M. K. StanfordSLAC, IfA Hawaii, Kicp Chicago, A. Bonn   +12 more
semanticscholar   +1 more source

UV–Vis Spectra of Carbonic Acid: Rationalizing Experimental Redshifts between Monomer and Bulk based on (H2CO3)n Calculations

ChemPhysChem, EarlyView.
In bulk carbonic acid (e.g., in interstellar icy dust grains) cluster formation produces two distinct UV‐Vis spectral features redshifted by ≈2 eV (25 nm) and by ≈5 eV (80 nm) compared to gas phase single molecule carbonic acid 's adiabatic ionization energy. Theory and experiment were used to investigate the origin of these shifts.
Dennis F. Dinu, Bastian Klein, Chaojiang Zhang, Radu A. Talmazan, Thomas Loerting, Hinrich Grothe, Ralf I. Kaiser, Maren Podewitz   +7 more
wiley   +1 more source

Improved Constraints on Mergers with SZ, Hydrodynamical simulations, Optical, and X-ray (ICM-SHOX) [PDF]

EPJ Web of Conferences
Galaxy cluster mergers are representative of a wide range of physics, making them an excellent probe of the properties of dark matter and the ionized plasma of the intracluster medium.
Silich E.M., Bellomi E., Sayers J., ZuHone J., Chadayammuri U., Golwala S., Hughes D., Montaña A., Mroczkowski T., Nagai D., Sánchez D., Stanford S.A., Wilson G., Zemcov M., Zitrin A.   +14 more
doaj   +1 more source

Unveiling the three-dimensional structure of galaxy clusters: resolving the discrepancy between X-ray and lensing masses

, 2010
[Abridged] We present the first determination of the intrinsic three-dimensional shapes and the physical parameters of both dark matter (DM) and intra-cluster medium (ICM) in a triaxial galaxy cluster.
Andersson, Andrea Morandi, Arabadjis, Arnaud, Binney, Bradač, Clowe, Dahle, De Filippis, Ebeling, Gastaldello, Gnedin, Inagaki, Jing, Kaastra, Kelson, Kristian Pedersen, Lee, Lee, Lee, Lewis, Limousin, Makino, Marceau Limousin, Merritt, Moore, Navarro, Oguri, Peng, Riemer-Sørensen, Sand, Sand, Sand, Sarazin, Smith, Sommer-Larsen, Suto, Taylor, Tyson, Vikhlinin, Voevodkin, Yoshida, Zappacosta   +42 more
core   +3 more sources