Thesis Defense by Jon Schiralli on April 22nd

Space Studies Master’s student, Jon Schiralli, will defend his thesis as follows.  Please show your support by attending.

When: Tuesday, April 22, 2014 at 2:00 p.m. (Central)

Where: Ryan Hall, Room 132  (Note room change – not available online)

Title: A COMPARISON OF SOLAR PROMINENCE DATA BETWEEN Hα AND EUV (He II-304Å)

About the Topic:  Two spectral lines are often used to observe solar prominences: Hα and He II 304Å. Both emission lines capture the same prominence structure but at vastly different temperatures: Hα is visible at ~10,000K while He II 304Å at ~80,000K. The He II 304Å images provide the ability to identify the relatively hotter outer region of a prominence, although they lack the details seen in the cooler lower regions. Hα conversely shows great detail in the cooler lower regions of a prominence but lack any detail in the hotter outer region of a prominence. Two prominences will be the subject of this paper, a low lying prominence on the northeast limb of the Sun and a larger prominence near an active region on the northwest limb of the Sun.

BIO:  Jonathan  has a bachelor’s degree in Air Traffic Control from Embry-Riddle Aeronautical University where he also obtained a minor in Space Studies. He is the GRA for the UND Observatory, treasurer of Dakota Space Society, and volunteers with High Altitude Ballooning