Archivi tag: planetary dynamics

Fast outflows in massive stars

Massive Stars are among the dominant sources of light in galaxies. Their high surface temperature, maintained over several evolutionary phases, implies that most of this light is emitted as ultraviolet photons. Through line scattering and the corresponding momentum transfer, this intense radiation field is able to accelerate fast outflows.  Continua a leggere Fast outflows in massive stars

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1st Doha International Astronomy Conference: “Gravitational Microlensing – 101 years from theory to practice”

1st Doha International Astronomy Conference: “Gravitational Microlensing – 101 years from theory to practice” – 2013 marks the 101st anniversary of Einstein’s notebook entry in which he first discussed the transient brightening of an observed distant star caused by the bending of light due to the gravitational field of an intervening foreground star – a phenomenon now commonly known as ‘gravitational microlensing’. Continua a leggere 1st Doha International Astronomy Conference: “Gravitational Microlensing – 101 years from theory to practice”