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Archivio mensile: Febbraio 2014

Transformational Science with the SKA, Synergies with ALMA and other Contemporary Instruments

Transformational Science with the SKA, Synergies with ALMA and other Contemporary Instruments

In 2014 it will be over twenty years since the first discussions of the SKA and the ambitious call for a radio telescope with a considerable increase in sensitivity (two orders of magnitude) over existing instruments. It will also be ten years since the publication of the rationale for the SKA in ‘Science with the…

Science Goals of a Sub-arcsecond Far-infrared Space Observatory

Science Goals of a Sub-arcsecond Far-infrared Space Observatory

This is the 1st FISICA workshop on science goals of a sub-arcsecond far-infrared space observatory which will be hosted by the National Council of Research. Topics will include: planets galactic astronomy extragalactic astronomy setting the scene of high resolution at adjacent frequencies vision of future interferometry future prospects and initiatives

Tracing the cosmic Web

Tracing the cosmic Web

Large galaxy redshift surveys have revealed that the Universe has a striking weblike structure. On these scales, galaxies and matter in the universe are arranged in a complex network of dense compact clusters, elongated filaments, two-dimensional sheets, and huge near-empty voids. The Cosmic Web is one of the most intriguing and striking patterns found in nature, rendering its…

The Impact of Galactic Structure on Star Formation

The Impact of Galactic Structure on Star Formation

Star formation occurs buried within the sub-parsec sized cores of the cold interstellar gas. Yet, there is tantalising evidence that it is far from immune to its global environment. Starting with the Kennicutt-Schmidt relation linking large-scale gas density to the surface star formation rate and progressing through to the latest high resolution observations of gas…

A Planck star instead of singularity inside black holes

E' una idea proposta da due astrofisici, Carlo Rovelli e Francesca Vidotto, che in un articolo suggeriscono che un oggetto, noto come stella di Planck, possa esistere al centro dei buchi neri, una proposta che eliminerebbe perciò il concetto di singolarità facendo sì che l'informazione possa riemergere in qualche punto dello spazio nel nostro Universo. The current thinking…

Massive or massless neutrinos?

Gli scienziati avrebbero risolto uno dei problemi aperti dell'attuale modello cosmologico standard combinando i dati del satellite Planck e quelli ottenuti grazie al fenomeno della lente gravitazionale allo scopo di determinare la massa dei neutrini. The team, from the universities of Nottingham and Manchester, used observations of the Big Bang and the curvature of spacetime to accurately measure…