20 citations · 64 across the 13 of their papers we have counts for
4 papers · 1 filter
Five ideas on black hole accretion disks
Marek A. Abramowicz
I review five of Bohdan Paczynski's ideas on black hole accretion disk theory. They formed my understanding of the subject and often guided intuition in my research. They are funda…
A short answer to critics of our article "Eppur si espande" [arXiv:astro-ph/0612155]
Marek A. Abramowicz, Stanislaw Bajtlik, Jean-Pierre Lasota +1
Recently [arXiv:astro-ph/0612155] we presented a formal mathematical proof that, contrary to a widespread misconception, cosmological expansion cannot be understood as the motion o…
Distribution of kilohertz QPO frequencies and their ratios in the atoll source 4U 1636-53
Gabriel Torok, Marek A. Abramowicz, Pavel Bakala +5
A recently published study on long term evolution of the frequencies of the kilohertz quasi-periodic oscillations (QPOs) in the atoll source 4U 1636-53 concluded that there is no p…
On the origin of clustering of frequency ratios in the atoll source 4U 1636-53
Gabriel Torok, Michal Bursa, Jiri Horak +4
A long discussion has been devoted to the issue of clustering of the kHz QPO frequency ratios in the neutron star sources. While the distribution of ratios inferred from an occurre…