62 citations · 475 across the 35 of their papers we have counts for
35 papers
Quasi-spherical superclusters
Pekka Heinämäki, Pekka Teerikorpi, Marian Douspis +5
Generally the dynamical state of superclusters is poorly known. We study properties of superclusters and select a sample of quasi-spherical superclusters, the dynamics of which can…
Hubble law: measure and interpretation
Georges Paturel, Pekka Teerikorpi, Yurij Baryshev
We have had the chance to live through a fascinating revolution in measuring the fundamental empirical cosmological Hubble law. The key progress is analysed : 1) improvement of obs…
Multi-frequency studies of galaxies and groups: I. Environmental effect on galaxy stellar mass and morphology
A. Poudel, P. Heinämäki, P. Nurmi +4
To understand the role of the environment in galaxy formation, evolution, and present-day properties, it is essential to study the multi-frequency behavior of different galaxy popu…
Mattig's relation and dynamical distance indicators
Pekka Teerikorpi, Yurij Baryshev
We discuss how the redshift (Mattig) method in Friedmann cosmology relates to dynamical distance indicators based on Newton's gravity (Teerikorpi 2011). It belongs to the class of…
Characteristic density contrasts in the evolution of superclusters. The case of A2142 supercluster
Mirt Gramann, Maret Einasto, Pekka Heinämäki +4
The formation and evolution of the cosmic web in which galaxy superclusters are the largest relatively isolated objects is governed by a gravitational attraction of dark matter and…
Eddington-Malmquist bias in a cosmological context
P. Teerikorpi
In 1914, Eddington derived a formula for the difference between the mean absolute magnitudes of stars "in space" or gathered "from the sky". Malmquist (1920) derived a general rela…