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
29 papers · 1 filter
Substructures and Density Profiles of Clusters in Models of Galaxy Formation
Y. P. Jing, H. J. Mo, G. Boerner +1
In this paper we investigate, using high resolution N-body simulations, the density profiles and the morphologies of galaxy clusters in seven models of structure formation. We show…
Cosmogony of Generic Structures
T. Buchert
The problem of formation of generic structures in the Universe is addressed, whereby first the kinematics of inertial continua for coherent initial data is considered. The generali…
Cluster mass estimates from weak lensing
Matthias Bartelmann
The reliability of cluster lens reconstruction techniques based on weak lensing is studied in terms of the accuracy of their reproduction of the total cluster mass as a function of…
The lens parallax method: determining the redshifts of the faint blue galaxies through gravitational lensing
Ramesh Narayan, Matthias Bartelmann
We propose a new technique, which we call the lens parallax method, to determine simultaneously the redshift distribution of the faint blue galaxies and the mass distribution of fo…
Substructures of Clusters and Cosmological Models
Y. P. Jing, H. J. Mo, G. Boerner +1
We investigate, using high resolution N-body simulations, the density profiles and the morphologies of galaxy clusters in three models of structure formation. We show that these pr…
Gravitational Lensing and the Mass Distribution of Clusters
Matthias Bartelmann, Ramesh Narayan
We review and discuss information on the mass distribution of galaxy clusters obtained from gravitational lensing.
Crushing singularities in spacetimes with spherical, plane and hyperbolic symmetry
Alan D. Rendall
It is shown that the initial singularities in spatially compact spacetimes with spherical, plane or hyperbolic symmetry admitting a compact constant mean curvature hypersurface are…
Strong cosmic censorship in vacuum space--times with compact, locally homogeneous Cauchy surfaces
Piotr T. Chruściel, Alan D. Rendall
We consider the question of strong cosmic censorship in spatially compact, spatially locally homogeneous vacuum models. We show in particular that strong cosmic censorship holds in…
Momentum transfer by an internal source of ionizing radiation - an important feedback process during galaxy formation ?!
Martin G. Haehnelt
The role of momentum transfer (``radiation pressure'') due to an internal source of ionizing radiation for the formation of baryonic structures is investigated. Fully-ionized self-…
Isospin Dependence of the Spin-Orbit Force and Effective Nuclear Potentials
M. M. Sharma, G. A. Lalazissis, J. Koenig +1
The isospin dependence of the spin-orbit potential is investigated for an effective Skyrme like energy-functional suitable for density-dependent Hartree-Fock calculations. The magn…
Reduced Neutrino Opacities and the SN 1987A Signal
Wolfgang Keil, H. -Thomas Janka, Georg Raffelt
Axial-vector interactions of neutrinos and axions with a medium are based on structure functions which cannot be calculated in simple perturbative terms for nuclear densities. We u…
On the topology of stationary black holes
P. T. Chrusciel, R. M. Wald
We prove that the domain of outer communication of a stationary, globally hyperbolic spacetime satisfying the null energy condition must be simply connected. Under suitable additio…
When Does the Richardson-Lucy Deconvolution Converge ?
Hongguang Bi, Gerhard Boerner
(\rl = Richardson-Lucy) We propose a simulation-based bootstrap method to access global significance levels of deconvolution models in the \rl and other iterative restoration algor…
Cluster lens reconstruction using only observed local data
Peter Schneider
The reconstruction of the density profile in clusters of galaxies from the distortion of the images of faint background galaxies is reconsidered. The inversion formula of Kaiser \&…
Global Properties of Locally Spatially Homogeneous Cosmological Models with Matter
Alan D. Rendall
The existence and nature of singularities in locally spatially homogeneous solutions of the Einstein equations coupled to various phenomenological matter models is investigated. It…
On the Nature of Singularities in Plane Symmetric Scalar Field Cosmologies
Alan D. Rendall
The nature of the initial singularity in spatially compact plane symmetric scalar field cosmologies is investigated. It is shown that this singularity is crushing and velocity domi…
The Formation of Disk Galaxies in a Cosmological Context: Structure and Kinematics
Matthias Steinmetz, Ewald Mueller
We present results concerning the internal structure and kinematics of disk galaxies formed in cosmologically motivated simulations. The calculations include dark matter, gas dynam…
Anomalous Isotope Shifts in Pb Nuclei in RMF Theory
G. A. Lalazissis, M. M. Sharma, J. Koenig +1
We have studied the anomalous behaviour of isotopic shifts of Pb nuclei in the relativistic mean field theory. It has been shown that the relativistic mean field provides an excell…
Lyman alpha absorption at low redshifts and hot gas in galactic haloes
H. J. Mo
Motivated by recent observation of Lanzetta et al. that most luminous galaxies at low redshifts produce $\lya$ absorption at impact parameter $l\lsim 160 \kpch$, we propose that th…
Generator Coordinate Calculations for the Breathing-Mode Giant Monopole Resonance in Relativistic Mean Field Theory
M. V. STOITSOV, P. RING, M. M. SHARMA
The breathing-mode giant monopole resonance (GMR) is studied within the framework of the relativistic mean-field theory using the Generator Coordinate Method (GCM). The constrained…
Direct Capture at Low Energies
W. Balogh, R. Bieber, H. Oberhummer +5
The importance of direct capture for (n,)--reactions on intermediate-- and heavy--mass target nuclei occuring in the s-- and r--process is investigated. It is shown that the dir…
An Accelerated Lambda Iteration Method for Multilevel Radiative Transfer III. Noncoherent Electron Scattering
G. B. Rybicki, D. G. Hummer
Since the mass of the electron is very small relative to atomic masses, Thomson scattering of low-energy photons () produces thermal Doppler frequency shifts that are…
The Cosmic No-Hair Theorem and the Nonlinear Stability of Homogeneous Newtonian Cosmological Models
U. Brauer, A. Rendall, O. Reula
The validity of the cosmic no-hair theorem is investigated in the context of Newtonian cosmology with a perfect fluid matter model and a positive cosmological constant. It is shown…
Light Propagation in Arbitrary Spacetimes and the Gravitational Lens Approximation
Stella Seitz, Peter Schneider, Juergen Ehlers
We reformulate the transport equation which determines the size, shape and orientation of infinitesimal light beams in arbitrary spacetimes. The behaviour of such light beams near…