Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR1.7k papers
- Institut de Ciències del CosmosES1.4k papers
- TU Dortmund UniversityDE1.2k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.2k papers
- Heidelberg UniversityDE1.2k papers
- University of EdinburghGB1.2k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT1.1k papers
- Universitat de ValènciaES1.1k papers
- University of ManchesterGB1.1k papers
- Rutherford Appleton LaboratoryGB1.1k papers
- Imperial College LondonGB1.1k papers
- Massachusetts Institute of TechnologyUS1.1k papers
14 papers · 2 filters
Measurements of Omega and Lambda from 42 High-Redshift Supernovae
S. Perlmutter, G. Aldering, G. Goldhaber +29
We report measurements of the mass density, Omega_M, and cosmological-constant energy density, Omega_Lambda, of the universe based on the analysis of 42 Type Ia supernovae discover…
Substructure in the ENACS clusters
J. M. Solanes, E. Salvador-Sole, G. Gonzalez-Casado
Subclustering is investigated in a set of 67 rich cluster galaxy samples extracted from the ESO Nearby Abell Cluster Survey (ENACS) catalog. We apply four well-known statistical te…
Distances and absolute magnitudes from trigonometric parallaxes
F. Arenou, X. Luri
We first review the current knowledge of Hipparcos systematic and random errors, in particular small-scale correlations. Then, assuming Gaussian parallax errors and using examples…
Why are Halo Density Profiles Stable at Formation?
G. Gonzalez-Casado, A. Raig, E. Salvador-Sole
We analyze the physical justification of the picture proposed by Salvador-Sole et al. in these proceedings for the time evolution of the universal density profile of dark-matter ha…
The Distance to the Large Magellanic Cloud from the Eclipsing Binary HV2274
E. F. Guinan, E. L. Fitzpatrick, L. E. DeWarf +6
The distance to the Large Magellanic Cloud (LMC) is crucial for the calibration of the Cosmic Distance Scale. We derive a distance to the LMC based on an analysis of ground-based p…
The Growth of Dark-Matter Halos. The Effects of Accretion and Mergers
E. Salvador-Sole, A. Manrique, J. M. Solanes
High resolution cosmological N-body simulations show that the density profiles of dark matter halos in hierarchical cosmogonies are universal, with low mass halos typically denser…
Scaling Evolution of Universal Dark-Matter Halo Density Profiles
A. Raig, G. Gonzalez-Casado, E. Salvador-Sole
Dark-matter halos show a universal density profile with a scaling such that less massive systems are typically denser. This mass-density relation is well described by a proportiona…
The LMC distance modulus from Hipparcos RR Lyrae and classical Cepheid data
X. Luri, A. E. Gomez, J. Torra +2
The LM method, designed to exploit the Hipparcos data to obtain luminosity calibrations, is applied to derive luminosity calibrations for RR Lyrae and classical Cepheids. From thes…
GAIA: Origin and Evolution of the Milky Way
Gerry Gilmore, Michael Perryman, L Lindegren +7
GAIA is a short-listed candidate for the ESA Cornerstone mission C5, meeting the ESA Survey Committee requirement for an observatory mission, dedicated to astrometry, providing 10…
Comparison of two different extinction laws with Hipparcos observations
Bing Chen, Jean Luc Vergely, Bernard Valette +1
Interstellar absorption in the galactic plane is highly variable from one direction to another. In this paper colour excesses and distances from a new open cluster sample are used…
CP stars: Photometric calibrations of luminosity using Hipparcos data
F. Figueras, X. Luri, A. E. Gomez +7
The application of the Stromgren photometric luminosity calibrations to different types of CP stars is reexamined in the light of the new Hipparcos data. A first attempt is made to…
Inhomogeneous big bang nucleosynthesis with late-decaying massive particles
J. Lopez-Suarez, R. Canal
We investigate the possibility of accounting for the currently inferred primordial abundances of D, 3He, 4He, and 7Li by big bang nucleosynthesis in the presence of baryon density…
Kinematics of the southern galaxy cluster Abell 3733
J. M. Solanes, P. Stein
We report radial velocities for 99 galaxies with projected positions within 30 arcmin of the center of the cluster A3733 obtained with the MEFOS multifiber spectrograph at the 3.6-…
Type Ia supernova counts at high z: signatures of cosmological models and progenitors
P. Ruiz-Lapuente, R. Canal
Determination of the rates at which supernovae of Type Ia (SNe Ia) occur in the early Universe can give signatures of the time spent by the binary progenitor systems to reach explo…