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Cosmic microwave background anisotropies: simulations and statistical analysis

Adaptation of parallel codes of the HYDRA Consortium –cosmological structure simulations– to apply them to the study of the Rees-Sciama, lensing and Sunyaev-Zel´dovich effects. Statistical analysis of the resulting maps, and comparison of the results with observational data.

Cosmology (dark energy)

We use the time delays in gravitationally lensed quasars to measure cosmological distances and then use them to constrain the properties of the dark energy that is driving the accelerating expansion of our Universe.

Cosmology and magnetic fields

Cosmological simulations including primordial magnetic fields. Comparison with simulations without magnetic field and study of the effects of the field on the dynamics of cosmological structures.

Estructura a gran escala del universo

Simulations of large cosmological volumes including dark matter and gas. Analysis of statistical descriptors and comparison with observational data. Study of cosmological gaps.

Extragalactic jets on a kiloparsec scale

Study of the evolution of extragalactic jets and the relevant factors in the evolution (power, mass loading by gas clouds and stellar winds within the progenitor galaxy, development of instabilities...). Effects on the progenitor galaxy.

Formation and evolution of galaxies and galaxy clusters

Simulation of galaxy formation and evolution including cooling and heating processes, metals and star formation. Study of stellar populations in galaxies: metallicity and age gradients. Comparison with observational data.

Intrinsic energy and intrinsic moments of a space-time: universes that could be created

Search for the most general definition of linear and angular 4-momentum proper to the universe. Use of this definition to determine whether the different models of the universe used in technical literature to explain the observations can be created (as quantum vacuum fluctuations).

Relativistic extragalactic jets on the parsec scale

Study of the properties of extragalactic jets in the innermost regions of active galaxies, such as stability, or the role of the magnetic field in the dynamics of the jets. In addition, we collaborate in the interpretation of radio interferometric observations of these objects.

Relativistic flows in massive binary stars

Study of the evolution of relativistic jets and the interaction between relativistic pulsar winds and stellar winds in high-mass binary stars. These scenarios are interesting as potential sources of high-energy radiation.

Simulation of astrophysical sources of gravitational radiation

Simulation of astrophysical processes emitting gravitational radiation (collapsars, collision of neutron stars in compact binaries, etc.). Obtaining the cosmological background of gravitational radiation from the formation of supermassive black holes and large-scale structures.

Strongly magnetised neutron stars

Study of the magnetic field configuration, persistent X-ray emission, and quasi-periodic oscillations in magnetars.

Vector-tensor theories of gravity, dark energy and cosmological models

Study of cosmological models based on vector-tensor theories of gravitation with acceptable PPN parameters. Use of numerical codes CMBFAST, CAMB and COSMOMC, adapted to the new cosmologies, in order to estimate cosmological parameters and their compatibility with observational data.