Short-lived nuclides (SLNs) were incorporated to the solar nebula at the time of condensation of the first minerals from the vapor phase. The study of the...
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CharlaPrimitive materials preserved in meteorites and comets: clues on the stellar sources producing short-lived nuclides and presolar grains
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CharlaProbing gamma-ray production in relativistic jets of flat spectrum radio quasars
The MAGIC telescopes discovered very high energy (VHE, E>100 GeV) gamma-ray emission coming from the distant Flat Spectrum Radio Quasar (FSRQ) PKS 1222+21 (4C...
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CharlaRadiation-hydrodynamical model atmospheres across the Hertzsprung-Russell diagram
In the EU funded Marie Curie Excellence Team CIFIST (Cosmological Impact of the FIrst STars) work is under way to construct 3D radiation-hydrodynamical model...
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CharlaRelativistic hydro and magnetohydrodynamic models for AGN jet propagation and deceleration
I will present grid-adaptive computational studies of both magnetized and unmagnetized jet flows, with significantly relativistic bulk speeds, as appropriate...
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CharlaRubidium-rich asymptotic giant branch stars in the Magellanic Clouds
Asymptotic Giant Branch (AGB) stars are a principal source of gas and dust input into the interstellar medium, being an important driver of chemical evolution...
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CharlaStellar black holes at the dawn of the Universe: cosmological implications
The so called "dark ages" of the universe began about 400.000 years after the Big Bang as matter cooled down and space became filled with neutral hydrogen for...
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CharlaStructure of the Kerr-Schild geometry, beam-like solutions and fluctuations of the black-hole horizon
Exact solutions of the Einstein-Maxwell equations in the Kerr-Schild formalism are discussed. We show that black hole horizon is unstable with respect to...
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CharlaThe abundance of primordial helium: a keystone in our understanding of the Universe
Primordial helium might seem to be just a tiny piece in our understanding of how the Universe was born; still, it is a piece that must fit in if we are to...
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CharlaThe anomalous microwave emission in our Galaxy
The anomalous microwave emission (AME) is an additional diffuse foreground component, originated by an emission mechanism in the ISM different from the well...