Probing the early Universe with gravitational Wave Background
We will review both theoretical and obsevational aspects of gravitational wave backgrounds of cosmological origin. We will present a classifcation of...
Probing the low surface brightness outskirts of Milky Way dSphs: Sextans
Faint dwarf galaxies such as those found around the Milky Way (MW) display the largest known dynamical mass-to-light ratios (up to several 100s M⊙/L⊙). However...
Problems with the dark matter and dark energy hypotheses, and alternative ideas
Two exotic elements have been introduced into the standard cosmological model: non-baryonic dark matter and dark energy. The success in converting a hypothesis...
Reconstructing the mass accretion histories of nearby red nuggets with their globular cluster systems
It is generally recognized that massive galaxies form through a combination of in-situ collapse and ex-situ accretion. The in-situ component forms early, where...
SAMUEL TING: “If we find complete agreement with the theory, we don’t learn anything”
“I still remember the surface of the Moon seen from the Teide Observatory”. He will never forget the image: Sharp, close up, and brilliant. It was the first...
Satellites around Massive Galaxies Since z ~ 2: Confronting the Millennium Simulation with Observations
Minor merging has been postulated as the most likely evolutionary path to produce the increase in size and mass observed in the massive galaxies since z ~ 2. In...
Search for associated production of dark matter with a Higgs boson decaying to b\overline{b} or γγ at √{s}=13 TeV
A search for dark matter is performed looking for events with large missing transverse momentum and a Higgs boson decaying either to a pair of bottom quarks or...
Search for dark matter in events with energetic, hadronically decaying top quarks and missing transverse momentum at √{s}=13 TeV
A search for dark matter is conducted in events with large missing transverse momentum and a hadronically decaying, Lorentz-boosted top quark. This study is...
Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at √{s}=13 TeV
A search for dark matter particles is performed using events with large missing transverse momentum, at least one energetic jet, and no leptons, in proton...