Prof. Peter T. Gallagher Astrophysics Research Group

School of Physics Trinity College Dublin

www.physics.tcd.ie/astrophysics

http://www.tcd.ie/Physics/Astrophysics/images/group_12.JPG

o  Dunsink Observatory built in 1780s from Provost Andrews bequest.

o  Residence of Andrews Professor of Astronomy/Royal Astronomer of Ireland.

o  William Rowan Hamilton (1805-1865)

o  Appointed Andrews Professor at age of 22!

o  Huge contributions to optics and mechanics

o  Invented quaternions:

Culture Night 2012 at Dunsink

peter.gallagher@tcd.ie

peter.gallagher@tcd.ie

Nobeyama Radioheliograph, Japan

Nancay Radioheliograph, France Solar radio burst (164 MHz)

o  Quiet Sun o  Free-free emission from electrons in hot (>1 MK) plasma.

o  Sunspots o  Cyclotron emission from electrons spiraling along magnetic fields.

o  Flares and CMEs o  Plasma emission associated with Langmuir waves. o  Gyrosynchrotron emission from near-relativistic electrons.

o  Loca%on  of  Leviathan  telescope  from  1840s  

o  Largest  op%cal  telescope  in  the  world  

 from  the  1840s  to  1920s.  

Birr Castle

3rd Earl of Rosse

M51 Whirlpool “Nebula”

Happy research students in the control room!

peter.gallagher@tcd.ie

Proposed

Existing

Tarp-covered antennas

Stars and Planets

Space Weather

The Universe

o  Trinity  College  Dublin  

o  University  College  Cork  

o  NUI  Galway  

o  Dublin  Ins%tute  for  Advanced  Studies  o  Dublin  City  University  

o  Armagh  Observatory  

o  Queen’s  University  Belfast  

o  University  College  Cork  

o  NUI  Maynooth  o  University  College  Dublin  

o  Cork  Ins%tute  of  Technology  

o  Dublin  Ins%tute  of  Technology