Image of Alice in Wonderland at the Mad Hatter's tea party You are cordially invited to afternoon tea and biscuits wine and chocolate

Astronomy Tea Talks at Caltech

Mondays, Hameetman auditorium (Cahill)
Tea:  4.00pm
Talk: 4.15pm

Organized by:

2009 - 2010 season:
30 November 2009 Luis Reyes (U Chicago)

'Unraveling the Extragalactic Gamma-ray Sky in the Era of Fermi and VERITAS'

The field of high-energy astrophysics is experiencing a revolution due
to recent observations that have revealed a universe that is surprisingly
rich, variable and complex at gamma-ray energies. This revolution has now
switched into high gear with the launch of the Fermi Gamma-ray Space
Telescope and the full-fledged operation of a new generation of
ground-based instruments such as VERITAS, H.E.S.S. and MAGIC. Among the
different classes of gamma-ray sources observed by these instruments, a
particular subset of active galactic nuclei (AGN) known as blazars stand
out as some of the most energetic and variable objects observed at any
wavelength. In my talk I will describe how the complementary capabilities
of space and ground-based instruments are leading us to a better
understanding of gamma-ray blazars as high-energy sources, as a population,
and as a cosmological tool to probe the background radiation known as
extragalactic background light (EBL). Finally, I will discuss the important
scientific return that a next-generation instrument such as AGIS would bring
to the field of AGN astrophysics.

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Last modified on 20th Jul 2011 by Dominik A. Riechers.  

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