News and Colloquium
The next colloquium will be Thursday March 26, 2020 in Workman 101 by Guillaume.
Use this page to read about recent news and important events in the NMT Physics Department, and find announcements of upcoming colloquia on a variety of physics topics.
- Check out this article on our department's own Dr. Zeljka Fuchs-Stone in the ABQ Journal!
- The New Mexico Tech Physics Department has been ranked 39th by College Factual out of 263 schools for Physics! Read more about it here.
Guillaume. P. Loisel
Sandia National Laboratories
MEASURING THE RADIATIVE PROPERTIES OF ASTROPHYSICAL MATTER USING THE Z X-RAY SOURCE
G. P. Loisel, email@example.com, the ZAPP collaboration.Sandia National Laboratories, Albuquerque, New Mexico. The radiative properties of hot dense matter – opacity, the response of atoms to plasma environments, and radiation transport - are often an essential ingredient for building physical descriptions of cosmic objects.
Alternatively, understanding radiative properties is essential for correctly interpreting astronomical spectra. In the past, these properties were difficult or impossible to measure in terrestrial laboratories because the required temperature, density, and spectral irradiance were unobtainable or uncontrollable. Today, megaJoule-class pulsed x-ray sources are beginning to make benchmark experiments for astrophysical conditions possible for the first time. The Z Astrophysical Plasma Properties (ZAPP) collaboration is using Z, the most energetic x-ray source on earth, to stage experiments that simultaneously investigate multiple topics in radiative properties of hot dense matter. The astrophysics questions presently guiding this research are: 1) Why can’t we predict the location of the convection zone base in the Sun? 2) How does x-ray emission form in accretion-powered photoionized plasma objects? 3) How accurately can we determine White Dwarf stellar masses using spectroscopy? I will present the current status of the experimental research aimed at addressing these questions.
4 p.m, Thursday, 26 March 2020