Speaker: MArtin Hewitson (LISA consortium)
Title: LISA: Space-based GW Astronomy
On September 14th 2015, the merger signal from a pair of binary black
holes arrived at Earth and was observed by the Advanced LIGO detectors.
The signal had travelled for around 1 billion years to arrive at Earth, and
its detection marks the beginning of Gravitational Wave astronomy. Over
the coming decade, it is expected that LIGO, together with the Virgo and
Kagra detectors, will make many more such detections, opening our `ears'
to events in the Universe not visible through electromagnetic detections.
The Laser Interferometer Space Antenna (LISA) is a gravitational wave
observatory in space, targeting the millihertz frequency band where a large
number of astrophysical and cosmological sources of gravitational waves is
expected. In 2013, the European Space Agency selected the science theme
\The Gravitational Universe", which focuses on this rich science and in 2016,
a call was issued by ESA for missions to address this science, and the LISA
Consortium responded to that call with the LISA mission.
This talk will introduce Gravitational Waves and the techniques used to
detect them in space. It will review the LISA mission as a whole, highlight
the outstanding science that it will deliver. We will also look at the technical
aspects of the design, as well as the strong heritage from the LISA Pathnder
mission, all of which