311 citations · 1.4k across the 37 of their papers we have counts for
8 papers · 1 filter
To be or not to be: hot WHIM absorption in the blazar PKS 2155-304 sight line?
J. Nevalainen, E. Tempel, J. Ahoranta +8
The cosmological missing baryons at z<1 most likely hide in the hot (T K) phase of the Warm Hot Intergalactic Medium (WHIM). While the hot WHIM is hard to detect d…
Supercluster A2142 and collapse in action - infalling and merging groups and galaxy transformations
Maret Einasto, Mirt Gramann, Changbom Park +8
We study the dynamical state and properties of galaxies and groups in the supercluster SClA2142 that has a collapsing core, to understand its possible formation and evolution. We f…
A method to calculate gravitational accelerations within discrete localised regions in the Milky Way
Rain Kipper, Elmo Tempel, Peeter Tenjes
We present a method to calculate gravitational potential gradients within regions containing few tens of thousands stars with known phase space coordinates. The central idea of the…
Bayesian group finder based on marked point processes. Method and feasibility study using the 2MRS data set
Elmo Tempel, Maarja Kruuse, Rain Kipper +3
Galaxy groups and clusters are formidable cosmological probes. They permit the studying of the environmental effects on galaxy formation. A reliable detection of galaxy groups is a…
Galaxy Cluster Mass Reconstruction Project - IV. Understanding the effects of imperfect membership on cluster mass estimation
R. Wojtak, L. Old, G. A. Mamon +17
The primary difficulty in measuring dynamical masses of galaxy clusters from galaxy data lies in the separation between true cluster members from interloping galaxies along the lin…
The shape alignment of satellite galaxies in galaxy pairs in SDSS
Peng Wang, Quan Guo, Noam I. Libeskind +3
It has been shown, both in simulations and observationally, that the tidal field of a large galaxy can torque its satellites such that the major axis of satellite galaxies points t…