Deciphering the formation of galaxies with new breakthroughs in integral field spectroscopy

Deciphering the formation of galaxies with new breakthroughs in integral field spectroscopy

Event Name Deciphering the formation of galaxies with new breakthroughs in integral field spectroscopy
Start Date 21 Aug 2018 1:00 pm
End Date 21 Aug 2018 2:00 pm
Duration 1 hour
Description

Integral field spectroscopy (IFS) has changed the way we view galaxies. Rather than just an image or spectrum we can now see galaxies in 3-D with a spectrum at every point across a galaxy image. This means that not only the composition, but also the motion of galaxy components can be measured. New breakthroughs in fibre spectroscopy in Australia have led to IFS spectroscopy of thousands of galaxies with the SAMI instrument. The resulting stellar and gas kinematics are revealing how the environment of galaxies influences the accretion of gas and formation of stars to give the diverse morphologies and types of galaxies seen in the local Universe.  

An exciting next-generation IFS instrument called Hector is like 'SAMI on steroids', and will enable, for the first time, a statistical measure of the formation history of galaxies and how the large scale structure in the Universe influences how galaxies evolve. Current results on gas and stellar dynamics will be shown, along with a discussion of the new technology being developed to enable Hector and the science it will achieve.

Dr Julia Bryant did her PhD in 2001 in adaptive optics instrumentation for astronomy and the study of giant radio galaxies. Her current research focusses on both developing new astrophotonic devices for astronomical instruments, and in studying the accretion of gas in galaxies. She is based at Sydney University and is the Director of the AAO-USydney node, Hector Project Scientist, Hector Galaxy Survey Principal Investigator and was a founding member of the SAMI team.

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