PSL 68 - Understanding the Heftiest Things We Know: Giant Distant Black Holes
About the Speaker
Professor Prajval Shastri is an astrophysicist, formerly at the Indian Institute of Astrophysics, Bangalore and specialises in the area of phenomenology of active galaxies driven by supermassive blackholes using multi-wavelength observations ranging from radio to X-ray wavelengths.
She investigates the physics of accreting central supermassive black holes in distant galaxies and their impact on star formation in their hosts, using multi-wavelength data. She uses imaging and spectroscopy at frequencies ranging from radio to gamma-rays for this purpose. She studies the systematics of the observed properties of the bipolar synchrotron-emitting jets of plasma that are launched by these black holes, and their relationship with the nuclear environment of the accreting black holes, as well as their host galaxy properties.
About the Lecture
Contemporary astrophysics uses state-of-the-art technology to unravel the unknown, reaching into the cosmic depths of our universe. Among the many discoveries that have followed are the heftiest things we know, namely giant black holes that inhabit the centres of galaxies. The early evidence for these intriguing objects that emerged in the middle of the last century effectively rested on the Sherlock-Holmes argument. Today, however, we have the most direct evidence possible for black holes, got through the sharpest eyes that technology can make. She will cover some of the threads in this fascinating story.
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