Brad Wallace

OBJECTIVE

SUMMARY OF QUALIFICATIONS

• Experience with radio interferometry and aperture synthesis
• Experienced in digital image processing and data visualization
• Knowledge of UNIX, MS-DOS/WINDOWS and Apple Macintosh computing environments

EDUCATION

• Currently enrolled in Ph.D. (Astrophysics) program, estimated completion date December 1995
• M.Sc. Astrophysics, "Supernova Remnants in the Westerbork 327 MHz Galactic Plane Survey", 1991
• B.Sc. Physics/Astrophysics (Double Major), 1988

RESEARCH EXPERIENCE

Year-round research toward my theses. Included the observation, reduction and analysis of data ranging from the radio to the X-ray wavelengths (primarily radio wavelengths). Involved a variety of image processing and visualization techniques for both continuum and line data. Writing of research proposals. Travel to observatories to observe and reduce data. Maintained close ties with staff at the Dominion Radio Astrophysical Observatory (DRAO). Specific projects include:

• Westerbork Synthesis Radio Telescope 327 MHz Survey - required determining positional offset of fields observed at two epochs for later combining, searching for source variability, determination of source attenuation due to offsets from pointing center, mosaicing of overlapping fields, and comparison of resulting data with high frequency radio and infra-red data to search for supernova remnants. In addition, reduced and analyzed radio polarization data.
• Very Large Array follow-up observations - wrote proposals for higher-resolution follow-up observations based on above research, obtained data with initial calibration already completed, created and deconvolved resulting images, analyzed to look for supernova remnants and pulsars.
• DRAO 26m Radio Telescope Observations - initiated and carried out 21 cm line observations, edited and calibrated data, analyzed to look for large structures in the line data, compared line data with radio continuum and infra-red data.
• DRAO synthesis telescope observations - 5 observations of large fields at 408 and 1420 MHz (continuum) and 1420 MHz (128 line maps), created and deconvolved images, added data from single-dish observations to get maps with information on all spatial scales down to the resolution of the telescope, compared continuum with line data to look for associated structures in line data, comparison with data at a variety of other wavelengths.
• ROSAT X-ray observations - observed 3 fields centered on possible supernova-remnants, wrote proposal, received calibrated data, corrected for varying sensitivity over field, searched for emission associated with supernova remnants.
• Five Colleges Radio Astrophysical Observatory (FCRAO) observations - traveled to FCRAO to observe several fields in a spectral line at 3mm, reduced and analyzed data, compared with radio continuum and line data at other wavelengths.
• Other - Investigated ways of comparing and presenting multiple wavelength data. Investigated use of the Internet for collection and dissemination of scientific data and information. Supervised students working on term and summer projects in my supervisors absence.

TEACHING EXPERIENCE

Part-time instruction of first-year undergraduate physics and astronomy laboratory sections. This entailed pre-laboratory preparation, in-lab supervision, marking of laboratory reports, and the supervision and marking of quizzes.

OTHER

PUBLICATIONS

• Wallace, B.J., Landecker, T.L., Taylor, A.R., "HI Voids Around Filled-Center Supernova Remnants," Astronomy and Astrophysics, 286, 565, 1994
• Taylor, A.R., Wallace, B.J., Goss, W.M.., "New Galactic Plane Supernova Remnants", The Astronomical Journal, 103, 931, 1992
• Wallace, B.J., "Supernova Remnants in the Westerbork 327 MHz Galactic Plane Survey," M.Sc. Thesis, The University of Calgary, 1991

REFERENCES AVAILABLE UPON REQUEST