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Archivio mensile: Giugno 2013

Simulating a stellar-mass black hole

Grazie ad uno studio guidato da alcuni astronomi della Johns Hopkins University e della Rochester Institute of Technology, è stato possibile trovare nuovi indizi che confermano una ipotesi a lungo dibattuta su come i buchi neri di massa stellare producono radiazione di alta energia. “We’re accurately representing the real object and calculating the light an astronomer would…

SN 2012fr, an interesting stellar explosion case

Lo scorso anno, una serie di osservazioni relative all'esplosione di una nana bianca nei dintorni nella galassia NGC 1365 ha permesso ad un gruppo di ricercatori della Australian National University a raccogliere una grande quantità di dati su quella che essi ritengono sia una delle migliori 'candele standard' che viene utilizzata dagli astronomi come strumento di…

Alpine Cosmology Workshop 2013

Alpine Cosmology Workshop 2013

This is an annual workshop organized since 2009 by scientists of University of Helsinki, Max-Planck Institute for extraterrestrial Physics (MPE) and The University of Innsbruck. The concept of the workshop is to combine a scientific part, in which each participant delivers a review on their topic with a group activity in which every participant is engaged. To this end…

Complementarity of cosmological probes

Complementarity of cosmological probes

In the past decade we have been able to determine cosmological parameters with uncertainties smaller than ever before. The availability of many independent observational probes – all pointing in the same direction – suggests that they are also accurate, i.e. not dominated by unknown systematic errors. Remarkably, this wealth of observational data can be explained…

Feeding, Feedback, and Fireworks

Feeding, Feedback, and Fireworks

Late in June 2013, the Australian Astronomical Observatory (AAO) will be holding an international astronomy conference which will be hosted in the tropical paradise of Hamilton Island, Queensland, Australia. The meeting, entitled "Feeding, Feedback, and Fireworks: Celebrating Our Cosmic Landscape", will be the 6th of the Southern Cross Conference Series, jointly supported by the AAO and CSIRO Astronomy and Space Science (CASS). The Southern Cross Astrophysics…

Exploring the physics of inflation

Exploring the physics of inflation

The year 2013 will be exciting and full of new results based on the measurement and analysis of CMB temperature fluctuations, polarization, and LSS data. The Planck satellite is expected to provide new cosmological information and release all-sky CMB maps with unprecedented quality in the early part of 2013. These new results, along with the…