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58 papers · 1 filter
The REFLEX Cluster Survey: Probing the Mass Distribution in the Universe
L. Guzzo, H. Boehringer, C. A. Collins +2
We summarize some of the major results obtained so far from the REFLEX survey of X-ray clusters of galaxies, concentrating on the latest measurements of the cluster X-ray luminosit…
Asymptotic Giant Branch predictions: theoretical uncertainties
S. Cassisi, V. Castellani, S. Degl'Innocenti +2
In this paper we investigate the level of agreement between observations and "new" Asymptotic Giant Branch (AGB) models, as produced by updating the physical inputs adopted in prev…
A probable planetary companion to HD 39091 from the Anglo-Australian Planet Search
Hugh R. A. Jones, R. Paul Butler, C. G. Tinney +5
We report the detection of a extrasolar planet candidate orbiting the G1 V star HD 39091. The orbital period is 2083 d and the eccentricity is 0.62. With a minimum (M sin ) mass…
The 2dF Galaxy Redshift Survey: The amplitudes of fluctuations in the 2dFGRS and the CMB, and implications for galaxy biasing
Ofer Lahav, Sarah L. Bridle, Will J. Percival +26
We compare the amplitudes of fluctuations probed by the 2dF Galaxy Redshift Survey and by the latest measurements of the Cosmic Microwave Background anisotropies. By combining the…
The 2dF Galaxy Redshift Survey: The bias of galaxies and the density of the Universe
Licia Verde, Alan F. Heavens, Will J. Percival +27
We compute the bispectrum of the 2dF Galaxy Redshift Survey (2dFGRS) and use it to measure the bias parameter of the galaxies. This parameter quantifies the strength of clustering…
Evolution of Brightest Cluster Galaxies in X-Ray Clusters
Sarah Brough, Chris Collins, Doug Burke +2
A recent paper (Burke, Collins & Mann 2000) presents the analysis of the K-band Hubble diagram of 76 brightest cluster galaxies (BCGs) in X-ray clusters and shows that the properti…