Thursday, December 14, 2017, 16:00
OSGA/EG06
Matthias Bartelmann, Heidelberg University
Abstract:
With the latest data release, the harvest of ESA's Planck mission has
almost been brought in. In this talk, I will summarize the main results
that have so far been derived from the mission data. First and foremost,
Planck has impressively confirmed the cosmological standard model and,
in conjunction with other cosmological surveys, allowed to determine its
parameters with exquisite accuracy. The report about these cosmological
results will cover about one third of the talk. Second, partly owing to
the substantially increased accuracy, interesting and so far unresolved
tensions have been confirmed or revealed. I will discuss the related
problems without being able to offer solutions. Third, in addition to
the cosmologically relevant data, Planck has delivered an enormous
amount of data sets on astrophysical foregrounds, i.e. of microwave
signals superposed on the primordial microwave background. I will
describe some of the most important or impressive of these foregrounds
and conclusions from them, including again some unresolved puzzles.