Lewis Knee

Roles and responsibilities

Radio Instrumentation Team Lead

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

The Canadian galactic plane survey

AR Taylor, SJ Gibson, M Peracaula, PG Martin, TL Landecker, CM Brunt, ...

The Astronomical Journal 125 (6), 3145

 

The James Clerk Maxwell Telescope Legacy Survey of Nearby Star‐forming Regions in the Gould Belt

D Ward‐Thompson, J Di Francesco, J Hatchell, MR Hogerheijde, D Nutter, ...

Publications of the Astronomical Society of the Pacific 119 (858), 855

 

The Molecular Outflows in NGC1333

LBG Knee, G Sandell

Astronomy and Astrophysics 361, 671-684

 

NGC 1333—Protostars, Dust Shells, and Triggered Star Formation

G Sandell, LBG Knee

The Astrophysical Journal 546 (1), L49

 

The JCMT Gould Belt Survey: first results from the SCUBA-2 observations of the Ophiuchus molecular cloud and a virial analysis of its prestellar core population

K Pattle, D Ward-Thompson, JM Kirk, GJ White, E Drabek-Maunder, ...

Monthly Notices of the Royal Astronomical Society 450 (1), 1094-1122

 

A molecular jet and bow shock in the low mass protostellar binary NGC 1333-IRAS2

G Sandell, LBG Knee, C Aspin, IE Robson, APG Russell

Astronomy and Astrophysics 285

 

The structure of the molecular outflow near SSV 13 and HH 7-11 in the NGC 1333 region

R Liseau, G Sandell, LBG Knee

Astronomy and Astrophysics 192, 153-164

 

SEST observations of extragalactic radio sources at 3mm and 1.3 mm.

M Tornikoski, E Valtaoja, H Teräsranta, K Karlamaa, M Lainela, K Nilsson, ...

Astronomy and Astrophysics Supplement Series 116, 157-165

 

A HIGH-RESOLUTION STUDY OF THE H i–H2 TRANSITION ACROSS THE PERSEUS MOLECULAR CLOUD

MY Lee, S Stanimirović, KA Douglas, LBG Knee, J Di Francesco, ...

The Astrophysical Journal 748 (2), 75

 

Intensive monitoring of OJ 287

T Pursimo, LO Takalo, A Sillanpää, M Kidger, HJ Lehto, J Heidt, ...

Astronomy and Astrophysics Supplement Series 146 (1), 141-155

 

The JCMT Gould Belt Survey: a quantitative comparison between SCUBA-2 data reduction methods

S Mairs, D Johnstone, H Kirk, S Graves, J Buckle, SF Beaulieu, DS Berry, ...

Monthly Notices of the Royal Astronomical Society 454 (3), 2557-2579

 

The JCMT Gould Belt Survey: evidence for dust grain evolution in Perseus star-forming clumps

MCY Chen, J Di Francesco, D Johnstone, S Sadavoy, J Hatchell, ...

The Astrophysical Journal 826 (1), 95

 

Multiwavelength Monitoring of the BL Lacertae Object PKS 2155–304 in 1994 May. I. The Ground-based Campaign

JE Pesce, CM Urry, L Maraschi, A Treves, P Grandi, RI Kollgaard, E Pian, ...

The Astrophysical Journal 486 (2), 770

 

A massive cloud of cold atomic hydrogen in the outer Galaxy

LBG Knee, CM Brunt

Nature 412 (6844), 308-310

 

The JCMT Gould Belt survey: a first look at Southern Orion A with SCUBA-2

S Mairs, D Johnstone, H Kirk, J Buckle, DS Berry, H Broekhoven-Fiene, ...

Monthly Notices of the Royal Astronomical Society 461 (4), 4022-4048

 

Submillimeter Continuum Emission in the ρ Ophiuchi Molecular Cloud: Filaments, Arcs, and an Unidentified Far-Infrared Object

CD Wilson, LW Avery, M Fich, D Johnstone, G Joncas, LBG Knee, ...

The Astrophysical Journal 513 (2), L139

 

A molecular disk and dense outflow in Corona Australis.

IM Anderson, J Harju, LBG Knee, LK Haikala

Astronomy and Astrophysics 321, 575-590

 

The JCMT Gould Belt Survey: SCUBA-2 observations of circumstellar discs in L 1495

JV Buckle, E Drabek-Maunder, J Greaves, JS Richer, BC Matthews, ...

Monthly Notices of the Royal Astronomical Society 449 (3), 2472-2488

 

The JCMT Gould Belt Survey: Dense Core Clusters in Orion A

J Lane, H Kirk, D Johnstone, S Mairs, J Di Francesco, S Sadavoy, ...

The Astrophysical Journal 833 (1), 44

 

The JCMT Gould Belt survey: a first look at dense cores in Orion B

H Kirk, J Di Francesco, D Johnstone, A Duarte-Cabral, S Sadavoy, ...

The Astrophysical Journal 817 (2), 167

 

Molecular outflows associated with HH 52-54 and IRAS 12496-7650

LBG Knee

Astronomy and Astrophysics 259, 283-295

 

The JCMT Gould Belt Survey: Dense Core Clusters in Orion B

H Kirk, D Johnstone, J Di Francesco, J Lane, J Buckle, DS Berry, ...

The Astrophysical Journal 821 (2), 98

 

The JCMT Gould Belt Survey: evidence for radiative heating in Serpens MWC 297 and its influence on local star formation

D Rumble, J Hatchell, RA Gutermuth, H Kirk, J Buckle, SF Beaulieu, ...

Monthly Notices of the Royal Astronomical Society 448 (2), 1551-1573

 

The JCMT Gould Belt Survey: constraints on prestellar core properties in Orion A North

CJ Salji, JS Richer, JV Buckle, J Hatchell, H Kirk, SF Beaulieu, DS Berry, ...

Monthly Notices of the Royal Astronomical Society 449 (2), 1769-1781

 

The JCMT Gould Belt Survey: first results from SCUBA-2 observations of the Cepheus Flare region

K Pattle, D Ward-Thompson, JM Kirk, J Di Francesco, H Kirk, JC Mottram, ...

Monthly Notices of the Royal Astronomical Society, stw2648

 

Sequential and spontaneous star formation around the mid-infrared halo H ii region KR 140

CR Kerton, K Arvidsson, LBG Knee, C Brunt

Monthly Notices of the Royal Astronomical Society 385 (2), 995-1002

 

The JCMT Gould Belt Survey: the effect of molecular contamination in SCUBA-2 observations of Orion A

S Coudé, P Bastien, H Kirk, D Johnstone, E Drabek-Maunder, S Graves, ...

Monthly Notices of the Royal Astronomical Society 457 (2), 2139-2150

 

The JCMT Gould Belt Survey: a first look at IC 5146

D Johnstone, S Ciccone, H Kirk, S Mairs, J Buckle, DS Berry, ...

The Astrophysical Journal 836 (1), 132

 

The JCMT Gould Belt Survey: evidence for radiative heating and contamination in the W40 complex

D Rumble, J Hatchell, K Pattle, H Kirk, T Wilson, J Buckle, DS Berry, ...

Monthly Notices of the Royal Astronomical Society 460 (4), 4150-4175

 

The molecular outflow very near L1551 IRS5

CVM Fridlund, LBG Knee

Astronomy and Astrophysics 268, 245-248

1993

 

Molecular line observations of southern S stars

JH Bieging, LBG Knee, WB Latter, H Olofsson

Astronomy and astrophysics 339, 811-821

 

The Circumstellar Disk and Asymmetric Outflow of the EX Lup Outburst System

AS Hales, S Pérez, M Saito, C Pinte, LBG Knee, I de Gregorio-Monsalvo, ...

The Astrophysical Journal 859 (2), 111

 

The JCMT Gould Belt Survey: low-mass protoplanetary discs from a SCUBA-2 census of NGC 1333

P Dodds, JS Greaves, A Scholz, J Hatchell, WS Holland, ...

Monthly Notices of the Royal Astronomical Society 447 (1), 722-727

 

Molecular gas near HD 104237 and ε Chamaeleontis.

LBG Knee, T Prusti

Astronomy and Astrophysics 312, 455-462

 

System performance testing of the DVA1 radio telescope

LBG Knee, LA Baker, AD Gray, GJ Hovey, MJ Kesteven, G Lacy, ...

Ground-based and Airborne Telescopes VI 9906, 1368-1383

 

A new model of the eclipsing system RZ Ophiuchi

LBG Knee, CD Scarfe, M Mayor, BW Baldwin, SJ Meatheringham

Astronomy and Astrophysics 168, 72-80

 

IRAS 20188+ 3928-A molecular cloud with a very dense bipolar outflow

LT Little, P Bergman, CT Cunningham, BD Heaton, LBG Knee, ...

Astronomy and Astrophysics 205, 129-134

 

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

Post-Doctoral Fellow, 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)

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