We have selected the Galactic HII region M43, a close-by apparently spherical nebula ionized by a single star (HD37061, B0.5V) to investigate several topics of...
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TalkM43, the little sister of the Orion Nebula
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TalkMAGIC observations and multiwavelength properties of the quasar 3C 279 in 2007 and 2009
3C 279, the first quasar discovered to emit VHE gamma-rays by the MAGIC telescope in 2006, was re-observed by MAGIC in January 2007 during a major optical flare...
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TalkMagnetic fields and the outer rotation curve of M31
Recent observations of the rotation curve of M31 show a rise of the outer part that cannot be understood in terms of standard dark matter models or...
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TalkMass, age and metallicity of the central star of the multiple system HR8799
The multiple system HR8799 was the first multiple system discovered using direct imaging. In addition, this system has a debris disk with two rings, the central...
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TalkMatter under extreme conditions and Heavy Ion Colliders
According to Quantum Chromodynamics, which is the well established theory of strong interactions, quark and gluons are forced to live inside hadrons because of...
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TalkMeasuring Black Hole Spin
An astrophysical black hole is completely described with just two parameters: its mass and its dimensionless spin. A few dozen black holes have mass estimates...
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TalkModelo electoral para el 26J
En esta charla describo un modelo electoral Bayesiano para agregar sondeos electorales y estimar la intención de voto para el 26J.
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TalkOptical and NIR studies of short period low mass X-ray binaries (LMXB)
I present some recent results from our Optical and NIR studies of five short period low-mass X-ray binaries (LMXB's; X1822-371, X1957+115, UW CrB, X1916-05 and...
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TalkParker spontaneous current-sheets in topologically untwisted magnetic fields
A continuous magnetic field evolving under the hydromagnetic frozen-in condition preserves its field topology. Depending on that field topology, the evolving...