7.1k citations
- University of TartuEE251 papers
- Centre National de la Recherche ScientifiqueFR95 papers
- Leibniz Institute for Astrophysics PotsdamDE95 papers
- Instituto de Astrofísica de CanariasES63 papers
- University of TurkuFI61 papers
- Universidad de La LagunaES59 papers
- Estonian Academy of SciencesEE58 papers
- University College LondonGB47 papers
- National Institute of Chemical Physics and BiophysicsEE45 papers
- Leiden UniversityNL42 papers
- University of HelsinkiFI42 papers
- National Institute for AstrophysicsIT38 papers
11 papers · 2 filters
Finding and characterising WHIM structures using the luminosity density method
J. Nevalainen, L. J. Liivamagi, E. Tempel +12
We have developed a new method to approach the missing baryons problem. We assume that the missing baryons reside in a form of Warm Hot Intergalactic Medium, i.e. the WHIM. Our met…
Reconciling Planck cluster counts and cosmology? Chandra/XMM instrumental calibration and hydrostatic mass bias
Holger Israel, Gerrit Schellenberger, Jukka Nevalainen +2
The mass of galaxy clusters can be inferred from the temperature of their X-ray emitting gas, . Their masses may be underestimated if it is assumed that the gas is…
Tracing high redshift cosmic web with quasar systems
Maret Einasto, Erik Tago, Heidi Lietzen +6
We trace the cosmic web at redshifts 1.0 <= z <= 1.8 using the quasar data from the SDSS DR7 QSO catalogue (Schneider et al. 2010). We apply a friend-of-friend (FoF) algorithm to t…
Galaxy filaments as pearl necklaces
E. Tempel, R. Kipper, E. Saar +3
Context. Galaxies in the Universe form chains (filaments) that connect groups and clusters of galaxies. The filamentary network includes nearly half of the galaxies and is visually…
XMM-Newton and Chandra Cross Calibration Using HIFLUGCS Galaxy Clusters: Systematic Temperature Differences and Cosmological Impact
G. Schellenberger, T. H. Reiprich, L. Lovisari +2
Cosmological constraints from clusters rely on accurate gravitational mass estimates, which strongly depend on cluster gas temperature measurements. Therefore, systematic calibrati…
Galaxy Cluster Mass Reconstruction Project: I. Methods and first results on galaxy-based techniques
L. Old, R. A. Skibba, F. R. Pearce +18
This paper is the first in a series in which we perform an extensive comparison of various galaxy-based cluster mass estimation techniques that utilise the positions, velocities an…