This loads a font easier to read for people with dyslexia.
This renders the document in high contrast mode.
This renders the document as white on black
This can help those with trouble processing rapid screen movements.

Dr Andre Fletcher (Shanghai Astronomical Observatory)

Radio-loud AGN Surveys, Black Hole Magnetosphere Theories, and Sgr A* Variability - Dr Andre Fletcher Colloquium

The Australia Telescope National Facility Colloquium
11:00-12:00 Thu 20 Oct 2005

ATNF Marsfield Lecture Theatre


It is now believed that supermassive black holes (SMBHs) reside
within the centers of most galactic bulges; those galaxies which
harbor `Active Galactic Nuclei' (AGNs) may provide us with the
more obvious examples of central engines powered by such
putative SMBHs. In the period 1990-2005, the speaker has had the
opportunity to work on 3 independent projects, each of which is
concerned with fundamental questions in this challenging
research area, for example:-

(1) Where are these `active' SMBHs, in our universe?,
(2) How do these SMBH engines work, in astrophysics terms?, and
(3) Can we even understand Sagittarius A*, the closest SMBH to us?

Some preliminary results from these ongoing projects are
presented, but many questions remain unanswered, and
clear insights have been difficult to pin down -- only the
surface of these mysteries has been scratched.
(This talk in part aims to give a `behind-the-scenes' retrospective
look into some of the scientific motivations, chance meetings,
and challenges, encountered by the speaker in a personal odyssey
spanning 5 countries, and 3 decades).

More information

Kate Brooks

Other Colloquia
What's On