Michael Neal Sullivan successfully defended his dissertation, “Electronic Spectroscopy of Polycyclic Aromatic Hydrocarbons (PAHs) and Group IIA Metallic Oxides ” on Monday, April 10th, 2017. Michael’s committee was led by Michael C. Heaven with Tim Lian and Susanna Widicus Weaver as additional members.
During his time at Emory, Michael received the 2012 Outstanding TA Award for his work in physical chemistry lab. He also completed two internships (summer 2013 and 2014) at the Air Force Research Laboratory (AFRL) in Albuquerque, NM.
Next up, Michael will start a postdoctoral position with Dr. Lei Zhu at the New York Dept. of Health, Wadsworth Center in Albany, NY at the end of June.
Luyao Zou successfully defended his thesis, “Astrochemistry in star-forming regions: laboratory millimeter-submillimeter spectroscopy and broadband astronomical line surveys” on Thursday, March 9th, 2017. Luyao’s thesis committed was led by Susanna Widicus Weaver with Michael C. Heaven and Joel Bowman as additional members. Luyao will be returning to China to take a position as operation coordinator in science communication. Congratulations, Luyao!
Luyao Zou (Widicus Weaver Group) has developed a LaTeX template (v1.0) to assist students completing dissertations. The open source code, available on GitHub, automates the required publishing process, helping students to complete a professional, accurate document for submission.
Current gradate students, you can access the template here or from the graduate student resources section of our website.
Brian Hays (Widicus Weaver Group) is honest when asked what it was like to write his dissertation. “The dissertation writing process was grueling,” he says. “I rewrote it several times and stayed up all night for many nights.” Developing the dissertation project was also a challenge. “There were a lot of challenges to getting the PhD, many of them experimental. Usually they involved something that had never been experienced before in the lab, and we would have to learn a new skill and apply it immediately to research.”
That hard work paid off. Brian successfully defended his thesis in April 2015 and in May 2016 he was announced as the winner of the American Chemical Society’s Astrochemistry Dissertation Award for 2016. The award is intended to promote the emerging discipline of Astrochemistry within the PHYS Division of the ACS by recognizing an outstanding recent Ph.D. thesis submitted by an Astrochemistry Subdivision member. Brian will receive a $500 award and will give an invited presentation at the August 2016 ACS Meeting in Philadelphia.
Speaking to Brian, it’s clear that hard work and challenges on the road to the dissertation were met with a spirit of discovery and determination. “It was always very exciting to dive into something new [ . . . ] I was looking forward to building an experiment from scratch.” “Something new” for Brian included the development of novel spectroscopic methods that increased scanning speed by almost 100 times, leading to faster results. Mentoring support from advisor Susanna Widicus Weaver also made the journey towards the PhD easier. “Susanna was the person at Emory who most helped me towards getting the PhD,” says Brian. “Her mentoring and support is very important to me.”
The award-winning research that resulted is “primarily concerned with making and examining unstable molecules that may lead to prebiotic molecules in space.” The research relies on spectroscopic techniques that allow scientists to compare the results of an experiment to astronomical observations of star forming regions. “[We] see if we can make a molecule in the lab and detect it in space,” explains Brian. These techniques allow scientists to make informed observations about far-away regions of space from within the confines of the lab. For Brian, that didn’t completely rule out travel to places far, far away. He took advantage of Professional Development Support funds from the Laney Graduate School to perform astronomical observations in Hawaii.
Currently, Brian is a postdoctoral fellow at Purdue in the lab of Tim Zwier working on chirped pulse microwave spectroscopy. As in the PhD, Brian is seeking new capacities for existing tools “building up [Zwier’s] current instrument towards including mass spectrometry and towards new double resonance techniques.” Their next project will look at processes related to Titan’s atmosphere using these new techniques.
A theme of Brian’s dissertation and postdoctoral work seems to be the excitement he finds in new experiences, techniques, and questions. What does he find most exciting about what’s new and next for the field of astrochemistry? “I am most excited about the proliferation of rotational spectroscopy to more experiments in physical chemistry. This allows for a very high resolution picture of molecules that is state dependent and can be applied in a wide variety of experiments now, including those of astrophysical interest.”