Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Max Planck SocietyDE1.2k papers
- Centre National de la Recherche ScientifiqueFR1k papers
- National Institute for AstrophysicsIT820 papers
- European Southern ObservatoryCL784 papers
- Center for Astrophysics Harvard & SmithsonianUS755 papers
- Max Planck Institute for Extraterrestrial PhysicsDE722 papers
- Ludwig-Maximilians-Universität MünchenDE639 papers
- Space Research InstituteRU602 papers
- Osservatorio Astronomico di PadovaIT600 papers
- California Institute of TechnologyUS581 papers
- Trieste Astronomical ObservatoryIT566 papers
- University of California, BerkeleyUS566 papers
58 papers · 1 filter
CMB Anisotropy in COBE-DMR-Normalized Flat CDM Cosmogony
Bharat Ratra, Naoshi Sugiyama
We compute the cosmic microwave background (CMB) anisotropy in a low-density, flat, cosmological constant, cold dark matter model which is normalized to the two-year COBE DMR sky m…
CMB Anisotropy in COBE-DMR-Normalized Open CDM Cosmogony
Bharat Ratra, Anthony J. Banday, Krzysztof M. Gorski +1
We compute the CMB anisotropy in an open inflation CDM model which is normalized to the two-year DMR sky map. Presently available CMB data is consistent with ,…
Can neutrinos from neutron star mergers power gamma-ray bursts?
H. -Th. Janka, M. Ruffert
We perform three-dimensional hydrodynamical simulations of the coalescence of binary neutron stars. We include the emission and backreaction of gravitational waves into the Newtoni…
An analytic model for the spatial clustering of dark matter haloes
H. J. Mo, S. D. M. White
We develop a simple analytic model for the gravitational clustering of dark matter haloes to understand how their spatial distribution is biased relative to that of the mass. The s…
3He in stars of low and intermediate mass
Achim Weiss, Josef Wagenhuber, Pavel A. Denissenkov
We follow the evolution of 3He in stars of mass 0.8 -- 10 M (solar units) for Pop. I and II compositions from the main sequence until advanced stages on the AGB. Under standard ass…
CIV Absorption From Galaxies in the Process of Formation
Martin Haehnelt, Matthias Steinmetz, Michael Rauch
We investigate the heavy element QSO absorption systems caused by gas condensations at high redshift which evolve into galaxies with circular velocity of 100 to 200 km/s at the pre…
The Zel'dovich-type approximation for an inhomogeneous universe in general relativity: second-order solutions
H. Russ, M. Morita, M. Kasai +1
The gravitational instability of inhomogeneities in the expanding universe is studied by the relativistic second-order approximation. Using the tetrad formalism we consider irrotat…
New Parametrizations of Non-Gaussian Line-of-sight Velocity Distribution
HongSheng Zhao, Francisco Prada
A five-parameter fitting formula for the line-of-sight stellar velocity distributions of steady state systems is proposed. It can faithfully reproduce velocity distributions of the…
A Consistent Microlensing Model for the Galactic Bar
HongSheng Zhao, R. M. Rich, D. N. Spergel
We compute a microlensing map for the Galactic bar. The predicted event rate and event duration distribution are consistent with the events recently reported by the MACHO and…
Cosmological Applications of Gravitational Lensing
Peter Schneider
The last decade has seen an enormous increase of activity in the field of gravitational lensing, mainly driven by improvements of observational capabilities. I will review the basi…
Ultrasoft transient X-ray emission from AGN
K. Mannheim, D. Grupe, K. Beuermann +2
We report some remarkable and unexpected results of optical/UV/X-ray follow-up observations of bright soft X-ray selected AGN from the ROSAT All-Sky-Survey. The majority of these A…
Interaction in the Bimodal Galaxy Cluster A3528
S. Schindler
X-ray and radio continuum observations of the bimodal cluster A3528 in the Shapley Supercluster are presented. From a ROSAT PSPC pointed observation we find a marginal tendency of…
Are the Lyman alpha forest "clouds" expanding pancakes?
Martin G. Haehnelt
The large sizes of Lyman alpha ``clouds'' inferred from coincident absorption in the spectrum of close quasar pairs suggests that these are transient flattened structures of small…
Simulating Galaxy Formation
Matthias Steinmetz
A review on numerical simulations of galaxy formation is given. Different numerical methods to solve collisionless and gas dynamical systems are outlined and one particular simulat…
Galaxy Formation and Large-Scale Bias
Guinevere Kauffmann, Adi Nusser, Matthias Steinmetz
We outline a simple approach to understanding the physical origin of bias in the distribution of galaxies relative to that of dark matter. The first step is to specify how collapse…
Adding Long Wavelength Modes to an -Body Simulation
Giuseppe Tormen, Edmund Bertschinger
We present a new method to add long wavelength power to an evolved -body simulation, making use of the Zel'dovich (1970) approximation to change positions and velocities of part…
Adaptive Smoothed Particle Hydrodynamics: Methodology II
J. Michael Owen, Jens V. Villumsen, Paul R. Shapiro +1
This paper presents an alternative formulation of the ASPH algorithm for evolving anisotropic smoothing kernels, in which the geometric approach of Shapiro et al. (1996; Paper I) i…
Clustering of Faint Galaxies: $\w $, Induced by Weak Gravitational Lensing
Jens Verner Villumsen
Weak gravitational lensing by large scale structure affects the number counts of faint galaxies through the ``magnification bias'' and thus affects the measurement of the angular t…
Doppler peaks and all that: CMB anisotropies and what they can tell us
Max Tegmark
The power spectrum of fluctuations in the cosmic microwave background (CMB) depends on most of the key cosmological parameters. Accurate future measurements of this power spectrum…
The Single-Degenerate Scenario for Type Ia SNe in Cosmic Perspective
R. Canal, P. Ruiz-Lapuente, A. Burkert
The occurrence and properties of Type Ia supernovae (SNe Ia) in single-degenerate binary systems (white dwarf [WD] + nondegenerate companion) is examined for galaxies of different…
ROSAT Results on Groups and Clusters of Galaxies
S. Schindler
We present a selection of ROSAT results on the morphology, the evolution, and the masses of galaxy clusters and groups. ROSAT provides the first complete X-ray view on the Virgo cl…
Constraints on massive black holes as dark matter candidates using Galactic globular clusters
Ralf Klessen, Andreas Burkert
This work considers the idea of massive black holes being the constituents of the Galactic dark matter halo. It constrains the maximum black hole mass to $\mbh \sil 5 \times 10^4 \…
Mergers and the Formation of Disk Galaxies in Hierarchically Clustering Universes
Matthias Steinmetz
New simulations are presented which investigate the formation of smaller groups of galaxies in a CDM like universe. The simulations follow the evolution of dark matter and gas and…
Rare-Earth Nuclei: Radii, Isotope-Shifts and Deformation Properties in the Relativistic Mean Field Theory
G. A. Lalazissis, M. M. Sharma, P. Ring
A systematic study of the ground-state properties of even-even rare earth nuclei has been performed in the framework of the Relativistic Mean-Field (RMF) theory using the parameter…