Roles and responsibilities
Team Leader – Radio Instrumentation Team
Responsible for management and scientific leadership of a group of engineers and technicians involved in the research and development of new technologies for radio-astronomical instrumentation, their construction, and deployment.
Senior Research Officer
Observational radio astronomer with scientific interests in the galactic interstellar medium and star formation, single-dish and interferometric radio astronomy systems, and instrument and systems for radio astronomy observatories.
Current research and/or projects
Instrumentation – Radio receiver development for ALMA (Atacama Large Millimetre Array), the ngVLA (next generation Very Large Array), and CCAT (Cerro Chajnantor Atacama Telescope).
Science – Star formation and the interstellar medium in our Galaxy using single-dish and interferometric radio telescopes.
Research and/or project statements
- ALMA observatory commissioning
- ALMA Band 3 receiver upgrades
- Q-band receiver development for ngVLA
- Instrumentation for CCAT
- Testing of composite-materials radio telescopes
- Star formation studies using the James Clerk Maxwell Telescope Legacy Surveys
- Studies of southern star-forming regions with ALMA
Education
- Ph.D. Radio and Space Science, Chalmers University of Technology, 1991
- M.Sc. Astronomy, University of Victoria, 1985
- B.Sc. (Hons.) Physics, Memorial University of Newfoundland, 1983
Professional activities/interests
- Chair of Commission J (Radio Astronomy) of URSI Canadian National Committee
- Member, CASCA Board of Directors (Treasurer)
- Member, Canadian National Committee for the IAU
- Member, ngVLA Technical Advisory Committee
- Expertise in radio telescope commissioning, operations, and calibration
- Interests in the areas of atomic and molecular spectroscopy and radiative transfer
- Interests in the area of microwave engineering
Affiliations
- International Astronomical Union (IAU)
- International Union of Radio Science (URSI)
- Canadian Astronomical Society (CASCA)
Awards
NRC Outstanding Achievement Award (2010)
Key publications
Cryogenic L-band GaAs HEMT LNA for the Square Kilometre Array
Jiang, N., Knee, L.B.G., et al., 2018, ANTEM 2018, DOI: 10.1109/ANTEM.2018.8572988
Q-band single pixel receiver development for the ngVLA and NRC
Locke, L., et al., 2018, Proc. SPIE, DOI: 10.1117/12.2310002
The Circumstellar Disk and Asymmetric Outflow of the EX Lup Outburst System
Hales, A.S., et al., 2018, ApJ, DOI: 10.3847/1538-4357/aac018
System performance testing of the DVA1 radio telescope
Knee, L.B.G., et al., 2016, Proc SPIE, DOI: 10.1117/12.2232179
The ALMA assembly, integration, and verification project: a retrospective analysis
Lopez, B., Knee, L.B.G., et al., 2014, Proc. SPIE, DOI: 10.1117/12.2056310
ALMA array element astronomical verification
Asayama, S., Knee, L.B.G., et al., Proc. SPIE, DOI: 10.1117/12.926228
A High-resolution Study of the H I-H2 Transition across the Perseus Molecular Cloud
Lee, M.-Y., et al., ApJ, DOI: 10.1088/0004-637X/748/2/75
The James Clerk Maxwell Telescope Legacy Survey of Nearby Star‐forming Regions in the Gould Belt
Ward-Thompson, D., et al., 2007, PASP, DOI: 10.1086/521277
The Band 3 Receiver Cartridges for ALMA
Knee, L., et al., 2006, BAAS, 38, 137
Star Formation by Future Millimetre and Radio Interferometers
Knee, L.B.G., 2004, IAU Symp. 221, 461-470
The Canadian galactic plane survey
Taylor, A.R., et al., 2003, AJ, DOI: 10.1086/375301
A massive cloud of cold atomic hydrogen in the outer Galaxy
Knee, L.B.G., Brunt, C.M., Nature, 2001, 6844, 308
NGC 1333—Protostars, Dust Shells, and Triggered Star Formation
Sandell, G., Knee, L.B.G., ApJ, 2000, DOI: 10.1086/318060
The Molecular Outflows in NGC1333
Knee, L.B.G., Sandell, G., AAp, 361, 671-684
Previous work experience
January, 2014 - Present
NRC Herzberg Astronomy and Astrophysics
Radio Astronomer/Team Lead, Radio Instrumentation Team
November, 2007 – December 2013
National Radio Astronomy Observatory/Joint ALMA Observatory
Team Lead, System Integration Science Team
January, 2004 – October, 2007
NRC Herzberg Astronomy and Astrophysics
Group Leader, Millimetre Astronomy Group
August, 1996 – December 2003
NRC Herzberg Astronomy and Astrophysics
Radio Astronomer
July, 1992 – July, 1996
European Southern Observatory/Chalmers University of Technology
Staff Astronomer, Swedish-ESO Submillimetre Telescope
July 1991 – June 1992
Chalmers University of Technology
Post-Doctoral Research Fellow
International experience and/or work
Head of System Integration Science Team, Joint ALMA Observatory, Chile (2007-2013)
Post-Doctoral Fellow, Swedish-ESO Submillimetre Telescope, Chile (1992-1996)
Post-Doctoral Fellow, Onsala Sapace Observatory, Sweden (1991-1992)