482 citations · 3k across the 53 of their papers we have counts for
10 papers · 1 filter
A Search for the Most Massive Galaxies. II. Structure, Environment and Formation
M. Bernardi, J. B. Hyde, A. Fritz +3
We study a sample of 43 early-type galaxies, selected from the SDSS because they appeared to have velocity dispersion > 350 km/s. High-resolution photometry in the SDSS i passband…
On the evolutionary status of early-type galaxies in clusters at z~0.2 - I. The Fundamental Plane
Alexander Fritz, Bodo L. Ziegler, Richard G. Bower +2
We investigate a spectroscopic sample of 48 early-type (E+S0) galaxies in the rich cluster Abell 2390 (z=0.23) and 48 E+S0 galaxies from a previously published survey of Abell 2218…
Kinematic and chemical evolution of early-type galaxies
B. L. Ziegler, D. Thomas, A. Boehm +3
We investigate in detail 13 early-type field galaxies with 0.2<z<0.7 drawn from the FORS Deep Field. Since the majority (9 galaxies) is at z~0.4, we compare the field galaxies to 2…
Evolutionary Status of Early-Type Galaxies in Distant Poor Clusters
Alexander Fritz, Bodo L. Ziegler
We introduce our project that investigates the kinematic properties of early-type galaxies in 6 distant poor clusters at z~0.25. This study represents a continuation of our efforts…
A Detailed View of the Fundamental Plane of Early-Type Galaxies in Clusters at z~0.2
Alexander Fritz, Bodo L. Ziegler
We present a spectroscopic sample of 48 early-type galaxies in the rich cluster Abell 2218 and 50 galaxies in Abell 2390. Since both samples are very similar, we combine them and i…
Star formation activity of intermediate redshift cluster galaxies out to the infall regions
B. Gerken, B. Ziegler, M. Balogh +3
We present a spectroscopic analysis of two galaxy clusters out to ~4Mpc at z~0.2. The two clusters VMF73 and VMF74 identified by Vikhlinin et al. (1998) were observed with MOSCA at…
Early-type Galaxies in the Cluster Abell 2390 at z=0.23
A. Fritz, B. L. Ziegler, R. G. Bower +2
To examine the evolution of the early-type galaxy population in the rich cluster Abell 2390 at z=0.23 we have gained spectroscopic data of 51 elliptical and lenticular galaxies wit…
The Evolutionary Status of Early-type Galaxies in Abell 2390
Alexander Fritz, Bodo L. Ziegler, Richard G. Bower +2
We explore the evolution of the early-type galaxy population in the rich cluster Abell 2390 at z=0.23. For this purpose, we have obtained spectroscopic data of 51 elliptical and le…
Galaxy Properties in Low X-Ray Luminosity Clusters at z=0.25
Michael L. Balogh, R. G. Bower, Ian Smail +4
We present the first spectroscopic survey of intrinsically low Lx clusters at z>>0, with HST WFPC2 imaging and ground-based spectroscopy. We study 172 confirmed cluster members in…
In.XS: project for a future spaceborne hard X-ray all-sky survey
P. B. Marty, J. Schultz, C. Bayer +13
The latest all-sky survey in hard X-ray band was performed by the HEAO-1 satellite (13-80 keV) with an angular resolution of 24x48 arcmin. A diffuse hard X-Ray background (HXB) was…