About NRAO > Scientific Staff

Scientific Staff

by Jessica Utley last modified Jan 15, 2016

NRAO Scientific Staff

The table below lists each member of the NRAO scientific staff, their scientific interests, and functional duties at the Observatory. Phone numbers and e-mail addresses for all employees are available in the NRAO Directory.

 

Tenured Staff

T. S. Bastian

Charlottesville, VA

Solar/stellar radiophysics, heliophysics; Frequency Agile Solar Radio telescope (FASR) planning and development; Assistant Director Science Support & Research.

C. Brogan Charlottesville, VA

High-mass star formation, astrochemistry, masers, magnetic fields, supernova remnants, small-scale structure in the interstellar medium, ALMA/NAASC, ALMA CASA subsystem scientist.

C. Carilli

Socorro, NM

Galaxy formation, radio galaxies, QSO absorption lines, epoch of reionization; NRAO Chief Scientist.

J. J. Condon

Charlottesville, VA

Dark energy, Hubble constant, black hole masses, nearby galaxies, evolution of star formation, radio surveys, radio emission from QSOs, supermassive black holes not in AGNs.

W. D. Cotton

Charlottesville, VA

Extragalactic radio sources, interferometry, cosmic masers, computational techniques for data analysis, scientific support, NRAO sky surveys.

A. S. Evans

Charlottesville, VA

Extragalactic, multi-wavelength studies of infrared galaxies, radio galaxies and quasar hosts; ALMA/NAASC, ALMA/ NAASC web pages. NRAO/UVA Joint Faculty.

E. B. Fomalont

Charlottesville, VA

ALMA Charlottesville Science Verification, CASA Scientific Steering Committee, Astrometry and Relativity Tests, VSOP and RadioAstron coordination, VLBA Spacecraft Tracking, Deep Radio Imaging.

D. A. Frail

Socorro, NM

Transient radio sky, pulsar/supernova-remnant associations, pulsar wind nebulae, masers, HI absorption and interstellar scattering.

W. M. Goss

Socorro, NM

Galactic-center studies, galactic masers, pulsars, supernova remnants, nearby galaxies; history of radio astronomy.

K. I. Kellermann

Charlottesville, VA

Extra-galactic radio sources, quasars, cosmology, radio telescopes, history of radio astronomy; NIO, NRAO Archives, space VLBI.

A. R. Kerr

Charlottesville, VA

Millimeter- and submillimeter-wave receiver development, SIS mixer design, CDL and ALMA Project.

H. S. Liszt

Charlottesville, VA

Spectral-line data reduction, interstellar chemistry, diffuse clouds, galactic structure and the galactic nucleus; Foreign Telescope Travel Fund Administrator, Spectrum Manager, and NAASC member specializing in proposal preparation and scheduling.

K. Y. Lo

Charlottesville, VA

Galactic center, star formation in dwarf galaxies, starburst galaxies and high- redshift galaxies, mega-masers and AGN, Hubble Constant and dark energy, intergalactic medium, microwave background radiation, millimeter- and submillimeter-wave interferometry.

F. J. Lockman

Green Bank, WV

Galaxies, Milky Way Structure and Evolution, interstellar medium, GB education and outreach; GBT Principal Scientist.

S. T. Myers

Socorro, NM

Cosmology, cosmic background radiation, gravitational lenses, epoch of reionization, radio synoptic sky surveys, radio transients, interferometric imaging algorithms, ALMA and VLA scientific support.

F. N. Owen

Socorro, NM

Evolution of galaxies, clusters of galaxies, radio galaxies, deep continuum surveys; EVLA.

R. A. Perley

Socorro, NM

Interferometry, polarimetry, antenna and receiver metrology.

M. Pospieszalski

Charlottesville, VA

Microwave and millimeter-wave low-noise devices, amplifiers and receivers, CMBR radiometers; EVLA/VLBA/GBT/ALMA receiver development.

S. M. Ransom

Charlottesville, VA

Pulsar searches and timing (especially binary and millisecond pulsars) and applications for basic physics; GBT pulsar infrastructure improvement.

H. A. Wootten

Charlottesville, VA

Star formation, structure and chemistry of the ISM in galaxies, circumstellar material; ALMA Program Scientist.

Scientists/Astronomers

D. S. Balser

Charlottesville, VA

Galactic structure and abundances, H II regions, planetary nebulae; telescope time allocation, science data archive.

J. Braatz

Charlottesville, VA

Cosmic masers, active galaxies, cosmology, molecular gas in AGN, scientific software and algorithms; ALMA and GBT science support.

B. J. Butler

Socorro, NM

Planetary astronomy; variable sources; Group Lead, VLA/VLBA Science Support Group.

J. Carpenter

Santiago, Chile

 

C. Chandler

Socorro, NM

Star formation, circumstellar disks, protostellar outflows, millimeter-wave interferometry; Head of the New Mexico Array Science Center, and Deputy Assistant Director for Science, NM Operations.

M. J. Claussen

Socorro, NM

Masers, young stellar objects, AGB stars, pre-planetary nebulae, spectropolarimetry; EVLA/VLBA user programs, EVLA and VLBA scientific support; EVLA commissioning; VLBA/EVLA scheduling.

S. A. Corder

Santiago, Chile

Rapid accretion events from low mass stars, outflow feedback in star-forming regions, debris disks and the search for young planetary systems, techniques in wide-field imaging, interferometric calibration approaches; ALMA Deputy Director.

P. C. Cortes

Santiago, Chile

Star formation with a special interest in the role of magnetic fields.

J. R. Cortes

Santiago, Chile

Kinematics and dynamics of galaxies, galaxy evolution, galaxy-galaxy interactions, sub-millimeter galaxies; ALMA science.

P. Demorest

Socorro, NM

Pulsars; High-precision pulsar timing and gravitational waves; Interstellar scattering; Polarimetry; Signal processing; Pulsar instrumentation and analysis software.

V. Dhawan

Socorro, NM

Radio and X-ray observations of microquasars, VLBA astrometry. EVLA and VLBA science support & system tests.

R. L. Dickman

Charlottesville, VA

Interstellar medium, molecular clouds, gravitation and dark matter; Assistant Director and director, Central Development Laboratory.

H. A. Ford Green Bank, WV

Galaxy structure and evolution, nearby galaxies (early-types, spirals, dwarfs), gaseous halos, and star formation;  Lead Scientist for the NRAO 140-ft Telescope; GBT user support.

D. T. Frayer

Green Bank, WV

Galaxy Evolution, ULIRGs, LIRGs, SMGs, molecular lines; GBT high frequency scientist.

F. D. Ghigo

Green Bank, WV

X-ray binary sources, active galactic nuclei; Green Bank Telescope user support, GBT precision pointing and active surface improvements.

A. S. Hales

Santiago, Chile

Protoplanetary and debris disks, evolution of circumstellar gas and dust evolution in environments of planet formation, near-IR polarimetry, multiwavelength surveys of the Galactic plane, radio continuum of Herbig Ae/Bestars; ALMA commissioning.

C. A. Hales Socorro, NM

Interstellar and intergalactic magnetism; galaxy evolution; polarimetry; radio surveys; rotation measure grids; radio weak lensing; statistics; data analysis software; heuristics for automated radio data reduction and imaging pipelines.

E. J. Hardy

Santiago, Chile

Cosmology, galaxies, stellar populations; Assistant Director for Chilean Affairs, NRAO/AUI representative in Chile.

J. E. Hibbard

Charlottesville, VA

Extragalactic HI, galaxy evolution, merging galaxies; North American ARC Manager & ALMA Operations.

T. R. Hunter

Charlottesville, VA

High-mass star formation, protoclusters, UCHII regions, hot cores, outflows, masers; millimeter/submillimeter interferometry; ALMA commissioning and analysis utilities; CASA pipeline heuristics; atmospheric calibration and antenna position determination.

V. Impellizzeri

Santiago, Chile

Active galaxies, molecular gas in AGN, water mega-maser emission, high redshift AGN; ALMA commissioning and science support.

R. Indebetouw

Charlottesville, VA

(High mass) star formation, interstellar medium and molecular clouds; NAASC user support,  ALMA simulator and pipeline; NRAO/UVA Joint Faculty.

P. R. Jewell

Charlottesville, VA

Interstellar molecules, and astrochemisty; NRAO Deputy Director and Assistant Director for North American ALMA Operations.

B. R. Kent

Charlottesville, VA

Nearby galaxies and clusters, galaxy dynamics; VLA pipeline.

M. Lacy

Charlottesville, VA

Quasars and active galactic nuclei, distant galaxies and galaxy evolution, extragalactic surveys. NAASC, ALMA archive and user support.

C. Lonsdale

Charlottesville, VA

Starburst galaxies, ultraluminous infrared galaxies, active galactic nuclei, galaxy evolution, large scale structure, extragalactic surveys, Wide-field Infrared Survey Explorer, WISE; ALMA user support.

R. Lynch

Green Bank, WV

Large area pulsar surveys and pulsar timing, radio observations of magnetars, VEGAS pulsar mode commissioning, GBT support, citizen science and outreach.

R. J. Maddalena

Green Bank, WV

Molecular clouds, interstellar medium, structure of spiral galaxies, high- redshift molecular emission galaxies, single-dish calibration algorithms, radio-frequency weather forecasting.

J. G. Mangum

Charlottesville, VA

Galactic and extragalactic star formation; Molecular spectroscopy of comets; Antenna performance characterization; Millimeter/submillimeter measurement calibration; ALMA; Publications of the Astronomical Society Editor-in-Chief.

B. S. Mason

Charlottesville, VA

Galaxy Clusters, Observational Cosmology; Imaging Algorithms; Instrumentation Development; GBT support.

M. M. McKinnon

Socorro, NM

Pulsars, radio polarimetry; statistics; interim Assistant Director for JVLA and VLBA Operations; Director, NRAO New Initiatives; ngVLA Project Manager.

A. H. Minter

Green Bank, WV

Interstellar turbulence and galactic HI; Head of GBT Science Operations.

A. J. Mioduszewski

Socorro, NM

Astrometry of young stellar objects, microquasars, symbiotic stars; AIPS, VLBA, HSA, EVLA and VLA support, student programs.

E. Momjian

Socorro, NM

(Ultra) Luminous IR Galaxies, extragalactic HI surveys, cm-wavelength molecular lines, OH megamasers, VLBI imaging of high-z QSOs and sub-mm galaxies, Galactic methanol masers, Zeeman effect; EVLA commissioning, EVLA/VLBA scientific support.

A. Moullet

Charlottesville, VA

Submillimeter interferometry. Atmospheres of giant and terrestrial planets and moons. Surfaces of solar system small bodies. ALMA data reduction management.

J. Donovan Meyer

Charlottesville, VA

Nearby galaxies, outer galaxy disks and HI-dominated environments, giant molecular clouds, star formation, field early-type galaxies. NAASC, CASA Scientific Testing Lead, user support, ALMA data combination.

K. O'Neil

Green Bank, WV

Extragalactic gas and dust, low-surface-brightness galaxies; Assistant Director for the GBT, and Site Director for GB Operations.

J. Ott

Socorro, NM

Molecular cloud and star formation in nearby active, dwarf, and interacting galaxies; multi-wavelength observations of the ISM in galaxies; galaxy evolution; the Galactic Center; CASA Project scientist; VLA user support and sub-system scientist for VLA pipeline infrastructure.

A. Peck

Charlottesville, VA

AGN, high redshift galaxies, mm/ submm astronomy; ALMA-NAASC, ALMA Commissioning, NRAO Support Scientist.

R. Prestage

Green Bank, WV

Fast radio bursts, digital signal processing techniques, telescope control systems.

A. Remijan

Charlottesville, VA

Astrochemistry, astrobiology, physical and chemical conditions of the interstellar, circumstellar, and cometary media; ALMA CSV.

J. D. Romney

Socorro, NM

Active extragalactic radio sources, interstellar medium, spacecraft navigation, VLBI instrumentation, VLBA scientific support; VLBA Sensitivity Upgrade Project Leader.

D. A. Roshi

Charlottesville, VA

Radio Recombination Lines, Galactic Interstellar Medium, Galactic Star Formation, Phased Array Feed, Signal Processing and Radio Astronomy Instrumentation.

L. O. Sjouwerman

Socorro, NM

Circumstellar masers and AGB stars; centers of the Galaxy and Andromeda, interstellar masers and SNR/MC interactions; data-reduction pipelines in AIPS; VLA/VLBA scientific support; subsystem scientist for the observing preparation tool (OPT).

S. Stierwalt

Charlottesville, VA

Multiwavelength observations of star formation and ISM physics in nearby galaxies, galaxy interactions and mergers, ALMA scientific user support.

G. A. van Moorsel

Socorro, NM

EVLA/VLBA Scientific Support Group Lead, EVLA Commissioning, Dynamics of Galaxies and Groups of Galaxies.

C. Vlahakis

Charlottesville, VA

 

J. M. Wrobel

Socorro, NM

Dual massive black holes, intermediate-mass black holes; Program Director, Astronomy and Astrophysics Research Grants, National Science Foundation.

Scientists/Computational Science

S. Bhatnagar

Socorro, NM

Supernova remnants, Galactic astronomy, Wide-band surveys, interferometric imaging and calibration algorithms, scientific computational techniques, high performance computing using multi-core CPU, GPUs and FPGAs, Algorithms research and development/CASA.

K. Golap

Socorro, NM

Low-frequency calibration and imaging, imaging algorithm development, CASA.

E. W. Greisen

Socorro, NM

Radio galaxies, HI in galaxies, interstellar medium, computer analysis of astronomical data; AIPS.

G. Moellenbrock

Socorro, NM

Polarization interferometry, VLBI, astrometry, kpc parallaxes; synthesis calibration and imaging algorithms, CASA; ALMA and EVLA commissioning support; ALMA, EVLA and VLBA user support.

R. Simon

Charlottesville, VA

ALMA testing in Chile.

T. Tsutsumi

 Socorro, NM

X-ray binaries, the Galactic Center, extragalactic variable radio sources, interferometric and single dish data analysis systems; CASA.

R. V. Urvashi

Socorro, NM

Numerical techniques and high-performance computing applied to interferometric image reconstruction, calibration and RFI-removal; CASA (software development), ARDG (algorithm research).

Scientists/Research Engineering

R. F. Bradley

Charlottesville, VA

Special-purpose radio telescope systems, low-noise amplifiers, array receivers, adaptive RFI excision, advanced receiver development, Dark Ages / Epoch of Reionization science, and radio-based particle physics; Low Noise Radiometer Laboratory Group Leader.

W. Brisken

Socorro, NM

Pulsars, astrometry, interstellar scattering; VLBI software correlation.

M. Morgan

Charlottesville, VA

Millimeter-wave MMIC design, analog-digital-photonic integration, Integrated Receiver Development Group Leader.

S. K. Pan

Charlottesville, VA

Superconducting millimeter--and submillimeter--wave low-noise devices, circuit and receiver development.

K. Saini

Charlottesville, VA

ALMA local-oscillator development, frequency-multiplier development; ALMA Front-End System engineering.

W. Shillue

Charlottesville, VA

ALMA Photonic LO Group Leader, responsible for ALMA Central LO and Photonic Receiver. Advanced Photonics development: Low-noise and low jitter photonic local oscillator development for radio astronomy instrumentation; Terahertz frequency synthesis and power generation for radio astronomy local oscillators and calibrators.

S. Srikanth

Charlottesville, VA

Electromagnetics, optics and antennas. Development of polarizers and broadband feeds for cm to mm-wave applications.

Emeritus Scientists

B. G. Clark

Socorro, NM

EVLA control and software development, VLA/VLBA scheduling

M. A. Gordon

Socorro, NM

CO, galactic structure, gas-rich galaxies, interstellar medium.

J. R. Fisher

Charlottesville, VA

Cosmology, signal processing, phased array feed design, advanced receiver development, RFI mitigation; former NRAO Chief Technologist.

D. E. Hogg

Charlottesville, VA

Structure of spiral galaxies, stellar winds.

P. J. Napier

Socorro, NM

Radio-astronomy instrumentation, antenna and system design for VLA, VLBA, & ALMA; SKA & CCAT design.

M. S. Roberts

Charlottesville, VA

Extragalactic hydrogen, normal galaxies, dark matter.

A. R. Thompson

Charlottesville, VA

Radio-astronomy instrumentation, theory and practice of radio interferometry and synthesis imaging, interference mitigation and spectrum protection for radio astronomy.

P. A. Vanden Bout

Charlottesville, VA

Interstellar medium, star formation, high- redshift molecular emission galaxies, galaxy formation/evolution.

R. C. Walker

Socorro, NM

Extragalactic radio sources; VLBI, VLBA development, VLBA scientific support.

Jansky Fellows

C. Hull                                 

Jansky Fellow at the Harvard-Smithsonian Center for Astrophysics; low-mass star formation, magnetic fields, polarization science & calibration, millimeter instrumentation.

T. Laskar

Jansky Fellow at the University of California at Berkeley.

D. Madison

Jansky Fellow at NRAO in Charlottesville.

B. McGuire

Jansky Fellow at NRAO in Charlottesville.
B. Mills

Jansky Fellow at the University of Arizona.

S. Burke Spolaor

Jansky Fellow in Socorro.

Research Associates and NRAO Postdoctoral Fellows

N. Cunningham

Postdoctoral Fellow in Green Bank.

A. Kepley

NRAO Postdoctoral Fellow for the NAASC in Charlottesville.  Interstellar medium, magnetic fields, star formation in galaxies.

K. Nyland

Postoctoral Fellow in Charlottesville. Galaxy evolution, low-luminosity AGNs, AGN feedback, star formation in early-type galaxies, nearby galaxies, intermediate-mass black holes, multi-wavelength survey science.