Charles Alcock, Professor of Astronomy
Massive compact halo objects, comets and asteroids.

Edo Berger, Assistant Professor of Astronomy
Studies gamma-ray bursts and their application to star formation, galaxy evoluton, and cosmology. Galactic and extra-galactic transient optical and radio objects.

David Charbonneau, Thomas D. Cabot Associate Professor of Astronomy
Detection and characterization of planets orbiting nearby, Sun-like stars, design and implementation of automated telescopes for photometric monitoring, formation and structure of brown dwarfs, and searches for their low-mass companions.

Alexander Dalgarno, Phillips Professor of Astronomy
Theoretical studies of atomic, molecular, chemical, and dynamical processes in astrophysical and atmospheric environments. Development and application of quantum mechanical methods to atomic and molecular physics and chemistry.

Douglas Finkbeiner, Assistant Professor of Astronomy
Observable consequences of dark matter annihilation; CMB foregrounds; Galactic structure and evolution;Large-scale structure surveys (e.g. Sloan Digital Sky Survey).

Alyssa A. Goodman, Professor of Astronomy
Studies of the interstellar medium, interstellar dust and star formation, including single-dish and interferometric spectral-line mapping, polarimetry, Zeeman observations, infrared photometry, stellar spectroscopy, satellite observations, and theoretical investigations.

Jonathan E. Grindlay, Robert Treat Paine Professor of Practical Astronomy
Compact objects and binaries in globular clusters and the origin and evolution of compact X-ray binaries. Accretion onto white dwafs, 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.

Lars Hernquist, Professor of Astronomy
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.

John P. Huchra, Robert O. and Holly Thomis Doyle Professor of Cosmology
Observational cosmology; in particular, the study of the distribution and dynamics of matter in the universe and study of the formation of structure in the universe; also research on active galactic nuclei, X-ray sources, globular clusters around galaxies and star formation in galaxies.

Robert P. Kirshner, Clowes Professor of Science
Observations of supernovae, supernova remnants, galaxy dynamics and evolution, clusters and galaxy distributions on very large scales using KPNO, CTIO, Las Campanas, IUE, Whipple Observatory, HST, and the MMT.

Julia C. Lee, Assistant Professor of Astronomy.
Multi-wavelength (primarily X-ray) spectroscopic studies of energetic accretion systems (X-ray binaries, AGN). Interstellar dust composition studies through laboratory experiments and space-based observations.

Abraham Loeb, Professor of Astronomy
Theoretical cosmology, in particular the early formation of structure in the universe; the microwave background, and gravitational lensing.

James M. Moran, Chairman and Donald H. Menzel Professor of Astronophysics
High angular resolution studies of radio sources, conducted with VLA and various VLBI Networks, including H2O, OH and SiO masers in the late-type stars and newly formed stars, compact H II regions, and quasars.

Ramesh Narayan, Thomas Dudley Cabot Professor of the Natural Sciences
Research in gravitational lensing. Accretion disks in binary neutron stars and black holes and in galactic nuclei; scattering and scintillation; gamma ray bursts.

Dimitar D. Sasselov, Professor of Astronomy
Research in dynamic stellar atmospheres, chromospheric heating, and mass loss through coupled hydrodynamics and radiative transfer. Galactic stellar populations and nucleosynthesis. Submillimeter studies of star formation.

Irwin I. Shapiro, Timken University Professor
Applications of radio and radar techniques to astrometry, astrophysics, geophysics, planetary physics, and tests of theories of gravitation.

Christopher Stubbs, Professor of Astronomy of Astronomy and Physics
Dark energy and dark matter, observational cosmology. Astronomical instrumentation and detector development; high performance computing applied to astronomical data analysis. Gravitational microlensing and supernova observations. Gravitational physics.

Patrick Thaddeus, Robert Wheeler Willson Professor of Applied Astronomy and Professor of Applied Physics
Radio astronomy: the study of molecules in the interstellar gas; investigation of the structure of molecular clouds and their distribution in the Milky Way and nearby galaxies. Laboratory Spectroscopy in the millimeter-wave band of reactive molecules.

Matias Zaldarriaga, Professor of Astronomy and Physics
Cosmology with special interest in cosmic microwave background and physics of the early universe.

George Field, Professor, Emeritus
Research on magnetohydrodynamics and magnetic fields in astronomy; accretion disks in active galactic nuclei, cosmology.

Owen Gingerich, Professor of Astronomy and of the History of Science, Emeritus.
Investigations on a wide range of historical topics, including Nicolaus Copernicus, Johannes Kepler, and Harlow Shapley, and also early astronomical books and instruments.

David Layzer, Professor, Emeritus
Specializes in the origin and evolution of astronomical systems.

Robert W. Noyes, Research Professor of Astronomy
Research in solar and stellar physics, including solar and stellar magnetic activity, seismology of the sun and stars, and the search for and characterization of planets around other stars.

Lori Allen, Lecturer on Astronomy
Star formation; young stellar clusters; molecular clouds.

Raymond Blundell, Lecturer on Astronomy
Millimeter-and submillimeter-wave instrumentation.

Thomas M. Dame, Lecturer on Astronomy
Millimeter-wave observations of interstellar molecules, primarily with the 1.2 meter telescope at the Center for Astrophysics. Research on galactic structure, the interstellar medium, and star formation in the Milky Way and external galaxies.

Rosanne Di Stefano, Lecturer on Astronomy
Interacting binaries; stars and binaries in dense stellar environments; gravitational lensing.

Martin Elvis, Lecturer on Astronomy
Extragalactic X-ray astronomy, quasars, and AGN; multiwaveband studies (X-ray, uv, ir, mm, and radio) of continuum and lines in quasars; models for quasars-structured winds as a path to unification, physical evolution; high Z clusters of galaxies.

Daniel Fabricant, Lecturer on Astronomy
Galaxy clusters; galaxy evolution; large-scale structure; instrumentation for optical astronomy.

Giovanni Fazio, Lecturer on Astronomy
Infrared astronomy, including balloon-borne, satellite, and ground-based observations using infrared array cameras; infrared detector development; the early universe; star formation and evolution; brown dwarfs; and ultraluminous galaxies.

Christine Forman, Lecturer on Astronomy
X-ray observations of hot gas in galaxies and clusters of glaxies to determine their mass, structure, and cosmological evolution.

William Forman, Lecturer on Astronomy
X-ray astronomy; high-energy astrophysics.

Lincoln Jared Greenhill, Lecturer on Astronomy
Active Galactic Nuclei (AGN)--accretion disks, jets, structures a few parsecs from AGN central engines, megamasers; massive star formation--mass flows <1000 AU from protostars, the Orion BN/KL region, masers; late-type stars--circumstellar shells and masers; infrared bright Wolf-Rayet stars.

Matthew Holman, Lecturer on Astronomy
Studies of the long-term dynamics of our solar system and extrasolar planetary systems. Observational surveys for Kuiper belt objects, Centaurs, and outer planet satellites.

Lisa Kaltenegger, Lecturer on Astronomy
Extrasolar planet research, especially on the definition, detection and evolution of biomarkers in a planet's atmosphere.

Kate Kirby, Lecturer on Astronomy
Theoretical calculations of molecular structure and properties; studies of molecular processes, such as photoionization, photodissociation, autoionization, and dissociative recombination; studies of molecules and molecular processes in interstellar clouds.

David Latham, Lecturer on Astronomy
Searches for extrasolar planets; the formation and early history of the Milky Way Galaxy; the frequency and orbital characteristics of binaries in various stellar populations.

Myron Lecar, Lecturer on Astronomy
Gravitational dynamics. Studies of the formation of the terrestrial planets. Chaotic orbits in the solar system. Cosmology. Studies of dynamics of voids and the large scale structure in the universe.

Jeffrey McClintock, Lecturer on Astronomy
Observations of X-ray binary systems that contain a black hole primary; measurements of the mass and spin of stellar-mass blackholes.

Philip M. Sadler, Senior Lecturer
Research in science education including identification of student misconceptions, development of introductory science courses in astronomy and physics, and testing of effective teaching methods. Computer simulations for learning introductory physics. Networked automated observatories for variable star photometry, asteroid and comet searches, and daytime observation. History of and current developments in celestial navigation.

Patrick Slane, Lecturer on Astronomy
Galactic X-ray astronomy; supernova remnants; young neutron stars.

David Wilner, Lecturer on Astronomy
Star and planet formation; aperture synthesis observations and techniques.

Qizhou Zhang, Lecturer on Astronomy
Molecular cloud and star formation; study of infall motions, disks, and outflows in star forming regions.