Moderadores
COS / DMI
- Martin Hirsch (Instituto de Fisica Corpuscular, CSIC - Universidad de Valencia)
Wide-field surveys like Euclid mark a new era of extragalactic stellar stream studies, with exciting applications in measuring baryon and dark matter distributions, and connecting galaxies to their cosmological context.
I present results from a pilot study combining Euclid imaging with Zooniverse classifications to detect and analyze stellar streams of extragalactic systems. We use projected...
I will illustrate the development of new methods, and their results, to determine the dark matter distribution in field galaxies.
Machine learning algorithms trained within the synthetic environment of numerical cosmological simulations -such as the IllustrisTNG- offer the potential to validate and test the reliability of the Dark Matter distribution in such controlled environment, before...
Gravitational Waves (GW) from compact binary coalescence like Black Holes or Neutron Stars behave like standard sirens and can be used to perform cosmological inference, in particular on the Hubble constant. In order to build the Hubble diagram, however, an independent measurement of the redshift is required, which is not always available. Here we propose a novel methodology which does not...
Charged ultra-high-energy cosmic rays are thought to be produced by astrophysical
processes such as shock acceleration. Their subsequent interactions also contribute to
the production of secondary gamma rays and neutrinos. However, physics beyond the Standard Model
at very high energy scales could also contribute to the fluxes of both charged and neutral
ultra-high-energy particles. Examples...
Despite extensive astrophysical evidence supporting its existence, the nature of dark matter remains one of the most compelling open questions in modern physics. One promising approach for probing its properties is indirect detection, which involves searching for its signals from regions of the universe where dark matter is expected to be concentrated. Such searches often target astrophysical...
Understanding the nature of dark matter remains one of the central challenges in modern physics. A promising strategy to probe its properties is indirect detection which searches for excesses of Standard Model particles produced by dark matter annihilation or decay in astrophysical objects. The Galactic Center is a particularly compelling target due to its high dark matter density and relative...
Weakly interacting massive particles (WIMPs) are among the leading candidates for dark matter. According to theoretical models, they could accumulate over time within massive astrophysical bodies such as the Sun and annihilate into Standard Model particles, including neutrinos. Neutrino telescopes, consisting of large arrays of photodetectors immersed in a transparent medium, allow us to...
