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Archivio mensile: Gennaio 2014

Essential Cosmology for the Next Generation

Essential Cosmology for the Next Generation

Berkeley Center for Cosmological Physics (BCCP) and the Advanced Institute for Cosmology (IAC) “Essential Cosmology For the Next Generation” annual school promotes a high level of intellectual exchange among young scientists and seasoned, frontier science researchers and is motivated by the need for astronomers and astrophysicists to remain informed of and understand the basis of advances in…

Ionising processes in atmospheric environments of planets, Brown Dwarfs, and M-dwarfs

Ionising processes in atmospheric environments of planets, Brown Dwarfs, and M-dwarfs

The atmospheres of planets and very low-mass (VLM) stars are cold enough that clouds form and affect the local chemistry and the spectral appearance. Prominent planetary examples are the giant gas planet HD189733b and the super-Earth GJ1214b in which hazes block the view onto the gaseous atmosphere in the optical and mid-IR spectral ranges. Similar effects…

Two distant, superluminous and puzzling supernovae

Gli astronomi che fanno parte del gruppo Supernova Legacy Survey (SNLS) hanno scoperto due supernovae estremamente distanti e brillanti. Esse si trovano a circa 10 miliardi di anni-luce e la loro luminosità è almeno 100 volte superiore a quella di una normale supernova. Tuttavia, gli scienziati si trovano davanti a un puzzle poichè il meccanismo fisico…