Schedule of Northern Virginia Astronomy Club speakers

Moon-Venus-Jupiter conjunction over Lorton, Virginia
The Cold Moon
              of December 2009
Jupiter and its four Galilean moons

This is a listing of scheduled speakers for the Northern Virginia Astronomy Club.  The lectures are given at George Mason University in Fairfax, Virginia.  If you would like to give a talk to the club audience, please select an open date from the table below and contact with your suggested topic and a desired meeting date.

Calendar of Upcoming Lectures

Date Speaker
Upcoming Lecture
January 12
Sten Odenwald Mind, Space and Cosmos: Exploring the mystery of space and how we think about it

Duncan Lorimer

April 13, 2014

Fast Radio Bursts

Meeting begins at 7:00 PM

George Mason University: Research Hall, Room 163

February 9
Alan Goldberg Big Data in Astronomy
March 9
Timothy Livengood Mars: A World Where Air Goes to Sleep at Night
April 13
Duncan Lorimer Fast Radio Bursts
May 4
Gary Hand
Amateur Astronomy: 1994, Today, and 2034
June 13

July 13

August 10

September 14

October 12

November 9

December 14


Summary of Upcoming Lecture

Following the discovery of radio bursts that lacked the customary emissions of X-Rays and Gamma Rays that are known to precede the formation of a black hole, a search began for the the source of these rapid and non-repeating radio bursts. One theory proposed by Heino Falcke and Luciano Rezzolla from the Max Planck Institute for Gravitational Physics in Potsdam is that the rotation of the neutron star could produce sufficient centrifugal forces to delay the collapse into a black hole for a few million years. This delay allows the magnetic field energy from the neutron star to clear out the matter that surrounds its future event horizon. As the collapse continues to the black hole stage, the magnetic fields become disconnected from the neutron star, producing radio emissions. The matter that would normally emit X-Rays and Gamma Rays from its acceleration across that event horizon would have already been pushed away from the region of singularity formation.

The expected X-Ray and Gamma Ray emissions from any remaining matter in the vicinity are enveloped by the expanding event horizon of the singularity, inside which the light barrier would be reached, making the electromagnetic radiation invisible to us on Earth. It is believed that the radio emissions represent the first evidence of the birth of a black hole.

Go to the NOVAC Homepage
Return to this Homepag