2001-2002 Colloquium Series
NAU Physical Sciences (Bldg 19, Rm 218), Thursday, 18 April 2002, 6:00 PM
(Refreshments at 5:30 PM)
HELIOSEISMOLOGY
Ed Anderson , NAU.
Abstract
The sun rings like a bell. There are over 10**7 tones that make up the "chord". The determination of the exact frequency of each of these tones will result in the full determination of the temperature, density and pressure for the solar interior. Detailed study of the solar oscillations and the subsequent refining of the solar model may also result in the determination of mass for the neutrino.
This talk will present an overview of Helioseismology (the study
of seismic waves on the sun) from the discovery of the 5-minute
oscillation to the current studies being conducted from ground
based observations (GONG) and space base observations (SOI).
Ed Anderson is a Sr. Support Systems Analyst for the Department of Physics and Astronomy and the Support Astronomer for the National Undergraduate Reseach Observatory. He obtained a Bachelor's degree in Astronomy from the Unversity of Toronto, and a Master's degree in Astronomy from the University of Western Ontario. He took on a support postion at the National Optical Astronomy Observatories in Tucson, Arizona, in 1984 and began working as a scientific programmer for the Global Oscillation Network Group (GONG) in 1986 and was responsible for the design and coding of much of the GONG data reduction software. Ed came to NAU in the summer of 1998 where he manages the computer systems for the Department of Physics & Astronomy, the campus observatory and is the staff astronomer for NURO in addition to his other duties he is the faculty sponsor of the Northern Arizona Astronomy Association and conducts many public outreach events in Flagstaff and surround areas.
Sponsored by the Northern Arizona Astronomy Association