Lewis Knee

 

Roles and responsibilities

Team Leader – Millimetre Instrumentation Group

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 commissioning for radio astronomy observatories.

Current research and/or projects

Instrumentation – Receiver development for ALMA (Atacama Large Millimetre Array) the ngVLA (next generation Very Large Array), and the SKA (Square Kilometre Array).

Science – Studies of interaction between stars and the interstellar medium throughout the stellar life cycle using single-dish and interferometric radio telescopes.

Research and/or project statements

  • ALMA Band 3 receiver upgrade development
  • Q-band receiver development for ngVLA
  • 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 for Commission J (Radio Astronomy) of URSI Canadian National 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, Millimetre Instrumentation Group

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)

Staff Astronomer, Swedish-ESO Submillimetre Telescope, Chile (1992-1996)

Lewis Knee

Lewis Knee

Senior Research Officer
Herzberg Astronomy and Astrophysics
5071 West Saanich Road
Victoria, British Columbia V9E 2E7
Preferred language: English
Telephone: 250-363-3075

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Expertise

Space sciences, Astronomy, Observational astronomy