Results 21 to 30 of about 120,881 (178)
Supernovae in Galaxy Clusters [PDF]
International Astronomical Union Colloquium, 2005 SummaryWe present the results of several surveys for supernovae (SNe) in galaxy clusters. SNe discovered in deep, archival HST images were used to measure the cluster SN Ia rate to z = 1. A search for SNe in nearby (0.06 ≤ z ≤ 0.2) Abell galaxy clusters yielded 15 SNe, 12 of which were spectroscopically confirmed.
Alexei V. Filippenko +5 more
openaire +4 more sources
Evolution of galaxy clustering [PDF]
Monthly Notices of the Royal Astronomical Society, 1998 Four pages, 1 figure.
openaire +4 more sources
A catalog of Nearby Poor Clusters of Galaxies [PDF]
, 1999 A catalog of 732 optically selected, nearby poor clusters of galaxies covering the entire sky north of $\rm -3^{\circ}$ declination is presented. The poor clusters, called WBL clusters, were identified as concentrations of 3 or more galaxies with ...
Bahcall J. N. +9 more
core +2 more sources
Detection of a Star Forming Galaxy in the Center of a Low-Mass Galaxy Cluster
, 2018 Brightest Cluster Galaxies (BCGs) residing in the centers of galaxy clusters are typically quenched giant ellipticals. A recent study hinted that star-forming galaxies with large disks, so-called superluminous spirals and lenticulars, are the BCGs of a ...
Andrade-Santos, Felipe +6 more
core +1 more source
Cluster detection from surface-brightness fluctuations in SDSS data [PDF]
, 2001 Galaxy clusters can be detected as surface brightness enhancements in smoothed optical surveys. This method does not require individual galaxies to be identifiable, and enables clusters to be detected out to surprisingly high redshifts, as recently ...
Aragón-Salamanca +24 more
core +2 more sources
Constraining Galaxy Formation Models with Dwarf Ellipticals in Clusters
, 2005 Recent observations demonstrate that dwarf elliptical (dE) galaxies in clusters, despite their faintness, are likely a critical galaxy type for understanding the processes behind galaxy formation.
Conselice, Christopher J.
core +2 more sources
Chandra Studies of the X-ray Gas Properties of Fossil Systems
, 2015 We study ten galaxy groups and clusters suggested in the literature to be "fossil system (FS)" based on \chandra\ observations. According to the $M_{500}-T$ and $L_{\rm X}-T$ relations, the gas properties of FSs are not physically distinct from ordinary ...
Qin, Zhenzhen
core +1 more source
Cosmology with Clusters of Galaxies [PDF]
, 2008 In this Chapter I review the role that galaxy clusters play as tools to constrain cosmological parameters. I will concentrate mostly on the application of the mass function of galaxy clusters, while other methods, such as that based on the baryon fraction, are covered by other Chapters of the book.
openaire +4 more sources
Statistics of Galaxy Clustering [PDF]
, 2006 In this introductory talk we will establish connections between the statistical analysis of galaxy clustering in cosmology and recent work in mainstream spatial statistics. The lecture will review the methods of spatial statistics used by both sets of scholars, having in mind the cross-fertilizing purpose of the meeting series.
Vicent J. Martínez, Enn Saar
openaire +3 more sources
Galaxies and subhaloes in ΛCDM galaxy clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2004 6 pages, 2 figures, accepted for publication in Monthly Notices Letters.
G. De Lucia +3 more
openaire +4 more sources