We study resolution effects in numerical simulations of gas-rich (20% of the total baryonic mass) major mergers, and show that the formation of slowly-rotating...
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PublicationFormation of Slowly Rotating Elliptical Galaxies in Major Mergers. A Resolution Study
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TalkGlobular clusters as a dynamical probe of dark matter
Gravitational dynamical friction affecting the orbits of globular clusters (GCs) was studied extensively as a possible formation mechanism for nuclear star...
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PublicationGlobular clusters in modified Newtonian dynamics: velocity dispersion profiles from self-consistent models
We test the modified Newtonian dynamics (MOND) theory with the velocity dispersion profiles of Galactic globular clusters populating the outermost region of the...
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PublicationGravitational radiation from point masses in elliptical orbits: spectral analysis and orbital parameters
The amplitude of the gravitational waves emitted by a binary system of arbitrary eccentricity and orientation is developed in Fourier-Bessel series. Periastron...
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TalkHow well does galaxy clustering constrain cosmology?
On the LCDM cosmology, dark matter collapses into virialised objects called haloes. The abundance and distribution of these haloes are a direct consequence of...
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TalkHunting for VIPERS red nuggets - traces of the past
Vimos Public Extragalactic Redshift Survey (VIPERS) is a spectroscopic survey designed to investigate the spatial distribution of ~90k galaxies on redshift 0.4...
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PublicationImpact of baryon physics on dark matter structures: a detailed simulation study of halo density profiles
The back-reaction of baryons on the dark matter halo density profile is of great interest, not least because it is an important systematic uncertainty when...
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PublicationLight-curve models for a pulsar orbiting a Kerr black hole
We have studied the signal received by a distant observer from a pulsar orbiting a stellar black hole. The binary system has a non-eccentric orbit and the most...
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TalkMatters of gravity
Contrary to popular belief, on very large distance scales visible matter stubbornly refuses to "fall" according to the laws of gravity of both Newton and...