B.S. California Institute of Technology
Ph.D. Harvard University
Joined the Middlebury College faculty in 1969
I am a professor in the Department of Physics at Middlebury College, where I have been a member of the faculty since 1969. My current research centers around supernovae, supernova remnants, and the interstellar medium. Simply put, I am interested in how stars blow up, what is left after they do, and how they enrich the cosmos in heavy elements like oxygen, carbon, silicon, iron, etc.—the elements that play a crucial role in the development of planets and life on them.
I have taught most of the courses in the Physics Curriculum at Middlebury at one time or another, but I am now on Associate Status, teaching only in the Fall Term, when I teach two somewhat different versions of our introductory astronomy course.
A more-or-less complete CV can be found here.
My research is based on observations carried out across the electromagnetic spectrum, primarily optical (using facilities such as Kitt Peak National Observatory, Cerro Tololo Inter-American Observatory, Gemini and the Hubble Space Telescope), and X-rays (primarily using the Chandra X-ray Observatory).
I am particularly interested in young supernova remnants—ones where we can still find clues about the nature of supernova explosions, the stars that led to them, and the debris that results.
Chandra ACIS Survey of M33 (ChASeM33): The Enigmatic X-Ray Emission from IC131 (Tüllmann et al. 2009)
Every Fall Term, I teach two versions of introductory astronomy:
Physics 0155, "Introduction to the Universe" is open to all students, regardless of background. For more details ab
Physics 0165, "Physics in the Universe" is a more analytical version, and is open to students who have taken Phys0109 (Newtonian Physics) or another college-level physics course (e.g., AP physics), and a semester of calculus (e.g., Math0112).
Courses offered in the past four years.
▲ indicates offered in the current term
▹ indicates offered in the upcoming term[s]
PHYS0155 - Introduction to the Universe
An Introduction to the Universe
Our universe comprises billions of galaxies in a rapidly expanding fabric. How did it begin? Will it expand forever, or how may it end? How do the stars that compose the galaxies evolve from their births in clouds of gas, through the tranquility of middle age, to their often violent deaths? How can scientists even hope to answer such cosmic questions from our vantage point on a small planet, orbiting a very ordinary star? Are there other planets, orbiting other stars, where intelligent beings may be pondering similar issues? This introductory astronomy course, designed for nonscience majors, will explore these and other questions. Students will also become familiar with the night sky, both as part of our natural environment and as a scientific resource, through independent observations and sessions at the College Observatory. The approach requires no college-level mathematics, but students should expect to do quantitative calculations using scientific notation and occasionally to use elementary high-school algebra. (Students may not receive credit for both PHYS 0155 and PHYS 0165.) 3 hrs. lect./ hrs. lab./disc. DED SCI
PHYS0165 - Physics in Universe
Physics in the Universe
This introduction to the phenomena and physical principles of the universe follows a similar syllabus to that of PHYS 0155, but with an added emphasis on analytical material. Principles of Newtonian mechanics are applied to the motions of planets, stars, and galaxies; statistical techniques help in understanding structures ranging from the interiors of stars to clusters of galaxies; and quantum principles are used to understand the radiation we receive from cosmic sources and the physical processes at work there. 3 hrs. lect., 3.5 hrs. lab./disc. (PHYS 0109 or equivalent; students may not receive credit for both PHYS 0155 and PHYS 0165) DED SCI
PHYS0500 - Ind. Study & Special Topic
Independent Study and Special Topics
Fall 2012, Winter 2013, Spring 2013
PHYS0704 - Senior Project
Independent research project culminating in both written and oral presentations.
PHYS0705 - Senior Research & Thesis
Senior Research and Thesis
Independent research in the fall, winter, and spring terms culminating in a written thesis (two units total). (Approval required)
Fall 2012, Winter 2013, Spring 2013