Today:
Dark Matter from the Top
Simon Kast
14:15
Higgs-Portals to Dark Matter
Prof. Michael Krämer
17:15
Upcoming:
From Midplane to Planets: The Chemical Touch of a Disk
Christian Eistrup
Wed, 24 Jan 2018, 14:00
HEP computing in real life
Rainer Schwemmer (CERN)
Wed, 24 Jan 2018, 15:15
Quantum liquid droplets in a mixture of Bose-Einstein condensates
Dr. Leticia Tarruell
Wed, 24 Jan 2018, 17:00
Analysis of the Deser-Woodard nonlocal gravity model
Sohyun Park
Wed, 24 Jan 2018, 17:15

Decoding the Sound of the Universe

Frank Ohme , AEI
Abstract: Gravitational waves are oscillations in spacetime, caused by violent cosmic events, that travel almost unobstructedly through the Universe, carrying information about their origin that complement other types of astronomical observations. When the Advanced Laser Interferometer Gravitational-wave Observatory (LIGO) started to operate in 2015, we finally became sensitive to this "soundtrack" of the Universe. Since then, multiple binary black mergers have been observed that would otherwise be entirely invisible. In addition, August 2017 marked the beginning of the era of multi-messenger astronomy, when a neutron-star merger was "heard" through gravitational waves as well as "seen" in the electromagenetic spectrum.

In my talk, I will illustrate how minuscule oscillations in giant laser interferometers can be traced back to their astrophysical origins with the help of supercomputers. I will give an overview of current observations and show what we can learn from gravitational-wave measurements, and how this information can be combined with other data to learn about compact objects and the Universe as a whole.
Königstuhl Colloquium
9 Feb 2018, 15:00
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)

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