Dr
Andrea Maccio
(Max Planck Institute for Astronomy)
04/08/2011, 10:20
Distribution of dark matter
Oral
I will summarize current results based on cosmological simulations about the
distribution of Dark Matter on both large and small scales. I will show how the
distribution of DM can be influence by the nature of the dark matter candidate (Warm
vs Cold), by the modeling of Dark Energy and by the presence of baryons.
douglas spolyar
(FNAL)
04/08/2011, 10:55
Distribution of dark matter
Oral
10 to 10^5 solar mass black holes with dark matter spikes that formed in early
minihalos and still exist in our Milky Way Galaxy today are examined in light of recent
data from the Fermi Gamma-Ray Space Telescope (FGST). The dark matter spikes
surrounding black holes in our Galaxy are sites of significant dark matter annihilation.
We examine the signatures of annihilations into...
Jordi Casanellas
(CENTRA-IST, Lisbon)
04/08/2011, 11:20
Distribution of dark matter
Oral
Strong deviations from the classical picture of stellar evolution are predicted when
low-mass stars are embedded in halos of dark matter (DM) particles with very high
densities, such as those expected in the inner parsec of our galaxy. In this talk we
will focus on two possible strategies to detect the influence of the DM captured
inside low-mass stars. First, by looking at the...
Mr
Pascal Steger
(Institute for Astronomy, ETH Zurich)
04/08/2011, 11:45
Distribution of dark matter
Oral
The dark matter distribution in dwarf galaxies and potentially in globular clusters
is of great interest for indirect dark matter searches.
In order to understand the distribution of dark matter in the smallest observable
structures, we investigate the evolution of the radial density profile of dwarf
spheroidal galaxies and globular clusters. We present first results from a very...
Dr
Adam Amara
(ETH Zurich)
04/08/2011, 13:30
Distribution of dark matter
Oral
Gravitational lensing, which occurs when the light from distant objects is bent as it
passes by matter, is a uniquely powerful tool in astronomy. It allows us to make
direct measurements of the unseen components of the Universe, including dark
matter and dark energy, which dominate the Universe around us but are not
understood. Explaining these two dark components remains one of the...
Fabio Iocco
(Institute d'Astrophysique de Paris)
04/08/2011, 14:05
Distribution of dark matter
Oral
Dark Matter distribution in the central region of the Galaxy
Ms
Silvia Garbari
(ITP - University of Zürich)
04/08/2011, 14:30
Distribution of dark matter
Oral
We revisit the systematic problems that arise in determining the local matter and
dark matter density from the vertical motion of stars at the Solar Neighbourhood. We
use a simulation of a Milky Way-like galaxy to analyse these systematics and
determine the quality of data required to detect dark matter at its expected local
density. We introduce new unbiased method for recovering ρ_DM,...
Dr
Matthew Walker
(Harvard-Smithsonian Center for Astrophysics)
04/08/2011, 15:30
Distribution of dark matter
Oral
Of all galaxy types, the Milky Way's dwarf spheroidal (dSph) satellites have the
largest inferred dark matter densities and smallest measured baryonic masses. These
facts combine to make dSphs attractive targets for indirect detection of dark matter
via self-annihilation and/or decay events. A detection (or non-detection) of
high-energy photons that might be released in such processes...
Dr
Jorge Penarrubia
(IoA, University of Cambridge)
04/08/2011, 16:05
Distribution of dark matter
Oral
Dwarf spheroidal galaxies (dSphs) are the most dark matter(DM) dominated and densest
galaxies in the known Universe. As such they provide interesting cases for indirect
DM detection experiments. Unfortunately, deriving the distribution of DM in dSphs is
severely hampered by the strong degeneracy that exists between the stellar velocity
anisotropy and enclosed DM mass. Here I will present...
