John L. Loeb Associate Professor of the Natural Sciences
Associate Professor of Astronomy
Director of Undergraduate Studies
Research interests: The study of gamma-ray bursts, optical transients (mainly from the Pan-STARRS project), and magnetic fields in low-mass stars and brown dwarfs. He uses observations across the electromagnetic spectrum, from radio to γ-rays.
Professor of Astronomy [on leave, 2013-14]
Astronomer at the Harvard-Smithsonian Center for Astrophysics
Research Interests: Detecting and characterizing planets orbiting other stars—worlds known as "exoplanets." He is fascinated by planets in edge-on orbits, such that the planet periodically passes in front of its star. These systems offer unparalleled opportunities to determine the properties of the planet and its atmosphere.
Research Interests: Cosmology and extragalactic astronomy with a mix of theoretical and observational methods; the development of the baryon acoustic oscillation method to measure the cosmic distance scale and study dark energy.
Robert Treat Paine Professor of Practical Astronomy
Research Interests: Compact objects and binaries in globular clusters and the origin and evolution of compact X-ray binaries. Accretion onto white dwarfs, neutron stars, and black holes. Development of a balloon-borne hard X-ray-imaging telescope and future space missions for hard X-ray observations of X-ray binaries and quasars.
Research Interests: Theoretical studies of dynamical processes in cosmology and galaxy formation/galaxy evolution. Numerical simulations of stellar dynamical and hydrodynamical systems. Investigations of the physics of compact objects, particularly neutron stars and the interplay between thermal and magnetic processes in strongly magnetized neutron stars.
Research interests: Observations of supernovae for themselves and for cosmology using HST, Magellan, MMT, and the Whipple Observatory. Use of rest frame infrared observations for Type Ia supernovae to improve measurements of dark energy properties. Ongoing Hubble Space Telescope study of SN 1987A, the brightest since 1604!
Research Interests: His cosmology research focuses on observations of the cosmic microwave background (CMB) to reveal signatures of the physics that drove the birth of the universe, the creation of its structure, and its present-day expansion. His research over the past two decades has involved the design, deployment, and operation of multiple generations of radio telescopes at the Amundsen-Scott Station at the South Pole.