92 citations · 617 across the 31 of their papers we have counts for
4 papers · 1 filter
Cosmic crystallography using short-lived objects - active galactic nuclei
Andrzej Marecki, Boudewijn F. Roukema, Stanislaw Bajtlik
Cosmic crystallography is based on the principle that peaks in the pair separation histogram (PSH) of objects in a catalogue should be induced by the high number of topologically l…
Looking for prematurely `dying', young, compact radio sources
M. Kunert-Bajraszewska, A. Marecki, R. E. Spencer
We present VLBA 1.6, 5, 8.4 and 15 GHz observations of a new sample of weak, young, compact candidates for radio faders selected from the VLA FIRST survey. We claim that some, or e…
Signatures of restarted activity in core-dominated triples
Andrzej Marecki
The lobes of radio-loud AGNs are huge reservoirs of energy so even if the central engine turns off, the radio source is still observable for a substantial amount of time. It is qui…
A Hint of Poincaré Dodecahedral Topology in the WMAP First Year Sky Map
Boudewijn F. Roukema, Bartosz Lew, Magdalena Cechowska +2
Luminet et al. (2003) suggested that WMAP data are better matched by a Poincaré dodecahedral FLRW model of global geometry, rather than by an infinite flat model. The analysis by C…