René Doyon

Associate Professor


Département de physique
Université de Montréal
C.P. 6128, Succursale Centre-Ville
Montréal, QC
Canada   H3C 3J7

Phone : 514-343-6111 # 3204
Fax : 514-343-2071
Email : rene.doyon (AT) astro (DOT) umontreal (DOT) ca
Office : D-436

CRAQ web page
UdeM Physics web page

    My research activities are focussed on the development of state-of-the-art astronomical instrumentation for various ground- and space-based observatories. I am also actively involved in various observational programs aiming the detection and characterisation of brown dwarfs, exoplanets and young low-mass stars. On the instrumenation front, I lead several infrared instrumentation projects (camera and spectrograph) for the Observatoire du Mont-Mégantic. I am co-investigator of the Gemini Planet Imager scheduled for operation in 2012. I am co-principal investigator of SPIROU, an instrument for the Canada-France-Hawaii telescope. Scheduled for operation in 2015, SPIROU is designed to detect terrestrial planets (similar to the Earth) within the « habitable » zone of low-mass stars in the solar neighborhood. I am also principal investigator of NIRISS, one of the four science instruments of the James Webb Space Telescope.

Graduate Students
Looking for planets around low-mass stars. (2010 - NOW)
Looking for young low-mass stars in nearby moving groups. (2010 - NOW)
Looking for young very low-mass stars and brown dwarfs in nearby moving groups. (2010 - NOW)
Scientific support of the Observatoire du Mont-Mégantic and Gemini Planet Imager. (2009 - NOW)
Conception of a differential polarimetric camera and study of brown dwarfs variability. (2008 - NOW)
Instrumentalist and mechanical expert. (1994 - NOW)
Scientific and technical support for JWST development. (2004 - NOW)

Former Students
Scientific support for the development of the JWST telescope. (2009 - 2011)
  • François Girardin (M.Sc.)
Study of the IR photometric variability of brown dwarfs. (2008 - 2011)
The Gemini Planet Imager. (2007 - 2011)
Design of a tunable filter for high dynamic range imaging. (2007 - 2011)
Looking for young low-mass stars in nearby moving groups. (2007 - 2009)
  • Jean-François Lavigne (PhD)
High-contrast imaging and exoplanet characterization by integral field spectroscopy. (2004-2009)
  • Stéphanie Juneau (M.Sc.)
Star Formation Activity in Gemini Deep Survey Galaxies. (2004 - 2005)
Direct imaging survey for giant planets around close-by stars and optimization of the LOCI imaging technique. (2002-2007)
Brown dwarf variability and development of CPAPIR, an infrared widefield camera. (2000 - 2006)
Looking for brown dwarfs around close-by stars and the development of an infrared spectrometer. (1999 - 2006)
Looking for brown dwarfs and exoplanets, development of a multi-band imaging technique. (1999 - 2004)
  • Natascha Förster-Schreiber (M.Sc.)
Infrared photometric and spectroscopic study of M82. (1991 - 1995)
Selection of young stars for exoplanet researchs with JWST. (2010)
Re-analyzing HST data with the LOCI algorithm. (2009)

Summer Interns
Brown dwarfs in the Upper Scorpius region. (2009)
Optical integration for the Gemini Planet Imager. (2009)
SIMP survey observations and data analysis. (2009)
SIMP survey observations and data analysis. (2009)
Development of a transit epoch calculator, OMM observations and data analysis. (2008)
Looking for low-mass stars with proper motion. (2007)
  • Clara Bouliane
Lens optical characterization, coronagraphic experience and laboratory work. (2007)
  • Jonathan Guillemet
Analysis of brown dwarfs and exoplanets synthetic spectra. (2004)
Gemini IR data analysis. (2003)
  • Alex Campeau
Data analysis for performance characterization of SIMON IR detector. (2002)
  • Eric Laflamme
Electronic conception for CPAPIR IR camera. (2001)
  • Benoît Cardin-St-Antoine
Laboratory tests assistant for SIMON IR camera. (2000)


#67 - Malo, L.Doyon, R.Lafrenière, D.Artigau, É.Gagné, J.Baron, F., Riedel, A. 2012, Bayesian analysis to identify new star candidates in nearby young stellar kinematic groups. Accepted for publication in ApJ. arxiv:1209.2077

#66 - Ingraham, P.J., Doyon, R., Beaulieu, M., Rowlands, N. & Scott, A. 2011, High-Contrast Imaging Performance of a Tunable Filter for Space-Based Applications I : Laboratory Performance, PASP, 123, 1412.

#65 - De Rosa, R.J., Bulger, J., Patience, J., Leland, B., Macintosh, B., Schneider, A., Song, I., Marois, C., Graham, J., Bessell, M. & Doyon, R. 2011, The VAST Survey - I. Companions and the unexpected X-ray detection of B6-A7 stars, Monthly Notices of the Royal Astronomical Society, 415, 854.

#64 - Artigau, É., Lafrenière, D., Doyon, R., Liu, M., Dupuy, Trent J. Albert, L., Gagné, J., Malo, L. & Gratadour, D. 2011, Discovery of Two L and T Binaries with Wide Separations and Peculiar Photometric Properties, ApJ, 739, 48-61

#63 - Artigau, É., Radigan, J., Folkes, S., Jayawardhana, R.,  Kurtev, R., Lafrenière, D., Doyon, R. & Borissova, J.  2010, DENIS J081730.0-615520: An overlooked late-T dwarf in the solar neighborhood, ApJL., 718, L38.

#62 - Beichman, C.A., Krist, J.,Trauger, J. T., Greene, T., Oppenheimer, B., Sivaramakrishnan, A., Doyon, R., Boccaletti, A., Barman, T. S. & Rieke, M. 2010, Imaging Young Giant Planets From Ground and Space, PASP, 122, 162.

#61 - Jolin, M.-A., Bastien, P., Denni, F., Lafrenière, D., Doyon, R., Voyer, P. 2010, Toward Understanding the Environment of R Monocerotis from High-Resolution Near-Infrared Polarimetric Observations, ApJ, 721, 1748.

#60 - Reylé, C., Delorme, P., Willott, C. J., Albert, L., Delfosse, X., Forveille, T., Artigau, É., Malo, L., Hill, G. J. & Doyon, R. 2010, The ultracool-field dwarf luminosity-function and space density from the Canada-France Brown Dwarf Survey, A&A, 522,112.

#59 - Artigau, É., Bouchard, S., Doyon, R., Lafrenière, D., 2009, Photometric variability of the T2.5 brown dwarf SIMP013656.67+093347.3; evidence for evolving weather patterns, ApJ, 701, 1534.

#58 - Artigau, É., Lafrenière, D., Albert, L. & Doyon, R. 2009, On the Age of the Widest Very Low Mass Binary, ApJ, 692, 149-153.

#57 - Lafrenière, D., Marois, C., Doyon, R. & Barman, T. 2009, HST/NICMOS Detection of HR 8799 b in 1998, ApJL, 694,  L148-L152.

#56 - Lavigne, J.-F., Doyon, R., Lafrenière, D., Marois, C., Barman, T. 2009, Near infrared observations of GQ Lup B using the integral field spectrograph NIFS, Astrophysical Journal, 704, 1098.

#55 - Radigan, J., Lafrenière, D., Jayawardhana, R., Doyon, R. 2009, Discovery of the Widest Very Low Mass Field Binary, ApJ, 698, 405.

#54 - Schneider, J., Boccaletti, A., Mawet, D., Baudoz, P., Beuzit, J.-L., Doyon, R., Marley, M., Stam, D. Tinetti, G., Traub, W., Trauger, J., Aylward, A., Cho, J. Y.-K., Keller, C.-U., Udry, S. 2009, Super earth explorer: a coronagraphic off-axis space telescope, Experimental Astronomy, 23, 357-377.

#53 - Shara, M. M., Moffat, A. F. J., Gerke, J., Zurek, D. R., Stanonik, K., Doyon, R., Artigau, É., Drissen, L., & Villar-Sbaffi, A. 2009, A Near-Infrared Survey of the Inner Galactic Plane for Wolf-Rayet Stars I. Methods and First Results: 41 New WR Stars, AJ, 138, 402.

#52 - Delorme, P, Willott, C. J., Forveille, T., Delfosse, X., Reylé, C., Bertin, E., Albert, L., Artigau, É., Robin, A. C., Allard, F., Doyon, R. & Hill, G.J. 2008, Finding ultracool brown dwarfs with MegaCam on CFHT: method and first results, A&A, 484, 469-478.

#51 - Goldman, B., Cushing, M. C., Marley, M. S., Artigau, É., Baliyan, K. S., Béjar, V. S., Caballero, J. A., Chanover, N., Connelley, M., Doyon, R., Forveille, T. Ganesh, S., Gelino, C. R., Hammel, H. B., Holtzman, J.,  Joshi, S., Joshi, U. C., D. 2008, CLOUDS search for variability in brown dwarf atmospheres. Infrared spectroscopic time series of L/T transition brown dwarfs, A&Ap, 487, 277-292.        

#50 - Marois, C., Macintosh, B., Barman, T., Zuckerman, B., Song, I., Patience, J., Lafrenière, D. & Doyon, R., 2008, Direct Imaging of a Multi-Planet System Orbiting the Star HR8799, Science, 322, 1348.

#49 - Marois, C., Lafrenière, D., Macintosh, Bruce, Doyon, R. 2008, Confidence Level and Sensitivity Limits in High-Contrast Imaging, ApJ, 673, 647-656.

#48 - Radigan, J., Lafrenière, D., Jayawardhana, R., & Doyon, R. 2008, Discovery of a Wide Substellar Companion to a Nearby low-mass star,

#47 - Scholz, A., Jayawardhana, R., Wood, K., Lafrenière, D., Schreyer, K. & Doyon, R. 2008, IRAS 04325+2402C: A Very Low Mass Object with an Edge-On Disk, ApJ., 681, L29-L32.

#46 - Lafrenière, D., Doyon, R., Nadeau, D., Artigau, É., Marois, C., Beaulieu, M. 2007, Improving the speckle noise attenuation of simultaneous spectral differential imaging with a focal plane holographic diffuser, ApJ, 661, 1208-1217.

#45 - Lafrenière, D., Marois, C., Doyon, R., Nadeau, D. & Artigau, É. 2007, A new algorithm for point spread function subtraction in high-contrast imaging: a demonstration with angular differential imaging, ApJ, 660, 770-780.

#44 - Lafrenière, D., Doyon, R., Marois, C., Nadeau, D., Oppenheimer, B.R., Roche, P.F., Rigaut, F. Graham, J. R., Jayawardhana, R., Johnstone, D., Kalas, P.G, Macintosh, B. & Racine, R. 2007, The Gemini Deep Planet Survey - GDPS, ApJ, 670, 1367-1390.

#43 - Artigau, É., Lafrenière, D., Doyon, R., Albert, L., Nadeau, D., Robert, J. 2007, Discovery of the Widest Very Low Mass Binary, ApJ, 659. L49-L52.

#42 - Artigau, É., Doyon, R., Lafrenière, D., Nadeau, D., Robert, J., Albert, L. 2006, Discovery of the Brightest T Dwarf in the Northern Hemisphere, ApJ, 651, L57-L60.

#41 - Marty, L., Adam, E., Albert, L., Doyon, R., Ménard, D. & Martel, R. 2006, Exciton formation and annihilation during 1D impact excitation of carbon nanotubes, Phys. Rev. Lett. 96, 136803.

#40 - Gardner, Jonathan P., Mather, John C., Clampin, Mark, Doyon, R., Greenhouse, Matthew A., Hammel, Heidi B., Hutchings, John B., Jakobsen, Peter, Lilly, Simon J., Long, Knox S. and 13 co-autors 2006, The James Webb Space Telescope, Space Science Reviews, Volume 123, Issue 4, pp.485-606.

#39 - Marois, C., Lafrenière, D., Macintosh, Bruce, Doyon, R. 2006, Accurate Astrometry and Photometry of Saturated and Coronagraphic Point Spread Functions, ApJ, 647, 612-619.

#38 - Marois, C., Lafrenière, D., Doyon, R., Macintosh, Bruce, Nadeau, D. 2006, Angular Differential Imaging: A Powerful High-Contrast Imaging Technique, AJ, 641, 556-564.

#37 - Marois, C., Doyon, R., Nadeau, D., Racine, R., Riopel, M., Vallée, P., & Lafrenière, D. 2005, TRIDENT: An Infrared Differential Imaging Camera Optimized for the Detection of Methanated Substellar Companions, PASP, 117, 745-756.

#36 - Marois, C., Racine, R., Doyon, R., Lafrenière, D. & Nadeau, D. 2004, Differential Imaging with a Multi-Color Detector Assembly: A New ExoPlanet Finder Concept, ApJL, 615, L61-L64.

#35 - Raynaud, E.; Drossart, P.; Matcheva, K.; Sicardy, B.; Hubbard, W. B.; Roques, F.; Widemann, T. H.; Gladstone, G. R.; Waite, J. H.; Nadeau, D.; Bastien, P.; Doyon, R.; Hill, R.; Rieke, M. J.; Marley, M., 2003, The 10 October 1999 HIP 9369 occultation by the northern polar region of Jupiter: ingress and egress light curves analysis, Icarus, 162, 344-361.Marchenko, S. V., Moffat, A. F. J., Vacca, W. D., Côté, S. & Doyon, R. 2002, Massive Binary WR 112 and Properties of Wolf-Rayet Dust, ApJ, 565, L59-L62.

#34 - Morel, T., Doyon, R., & St-Louis, N. 2002, Near-infrared [Fe II] emission from supernova remnants and the supernova rate of starburst galaxies, MNRAS, 329, 398-410.

#33 - Coziol, R., Doyon, R., & Demers, S. 2001,  Near-infrared spectroscopy of  starburst galaxies, MNRAS, 325,1081-1096.

#32 - Drissen, L., Roy, J., Robert, C., Devost, D., & Doyon, R. 2000, The Star Formation History of the Starburst Region NGC 2363 and its Surroundings, AJ, 119, 688-704.

#31 - Marois, C., Doyon, R., Racine, R., & Nadeau, D. 2000,  Efficient Speckle Noise Attenuation in Faint Companion Imaging, PASP, 112, 91-96.

#30 - Pérez-Ramirez, D., Knapen, J. H., Peletier, R. F., Laine, S., Doyon, R., & Nadeau, D. 2000, Circumnuclear regions in barred spiral galaxies - I. Near-infrared imaging, MNRAS, 317, 234-248.

#29 - James, P., Bate, C., Wells, M., Wright, G., & Doyon, R. 1999,  Do galaxy mergers form elliptical galaxies? A comparison of kinematic and photometric properties, MNRAS, 309, 585-592.

#28 - Lai, O., Rouan, D., Rigaut, F., Doyon, R. & Lacombe, F. 1999, Adaptive optics observations of luminous infrared galaxies. II. Imaging of the merging galaxy Arp 299, A&A,351, 834-840.

#27 - Laine, S., Knapen, J. H., Perez-Ramirez, D., Doyon, R., & Nadeau, D. 1999, A nuclear grand-design spiral within the normal disc spiral of NGC 5248, MNRAS, 302, L33-L37.

#26 - Nadeau, D., Racine, R., Doyon, R., & Arboit, G. 1999,  Near-Infrared Imaging Spectrophotometry of the Gravitational Mirage Q2237+0305, ApJ, 527, 46-53.           

#25 - Peletier, Reynier F.; Knapen, Johan H.; Shlosman, Isaac; Pérez-Ramírez, D.; Nadeau, D.; Doyon, R.; Rodriguez Espinosa, J. M.; Pérez García, A. M. 1999, A Subarcsecond-Resolution Near-Infrared Study of  Seyfert and "Normal'' Galaxies. I. Imaging Data, ApJS, 125, 363-407.

#24 - Racine, R., Walker, G. A. H., Nadeau, D., Doyon, R., & Marois, C. 1999, Speckle Noise and the Detection of Faint Companions, PASP, 111, 587-594.

#23 - Rouan, D., Rigaut, F., Alloin, D., Doyon, R., Lai, O., Crampton, D., Gendron, E. & Arsenault, R. 1998, Near-IR images of the torus and micro-spiral structure in NGC 1068 using adaptive optics, A&A, 339, 687-692.

#22 - St-Louis, N., Doyon, R., Chagnon, F., & Nadeau, D. 1998,  Molecular Hydrogen Emission in the Wolf-Rayet Nebula NGC 2359, AJ, 115, 2475-2482.

#21 - Davidge, T. J., Rigaut, F., Doyon, R., & Crampton, D. 1997,  High Spatial Resolution Near-Infrared Imaging of the Central Regions of M31, AJ,113, 2094.

#20 - Davidge, T. J., Simons, D. A., Rigaut, F., Doyon, R., & Crampton, D. 1997,  The Stellar Content Near the Galactic Center, AJ, 114, 2586-2595.

#19 - Goldader, J. D., Joseph, R. D., Doyon, R., & Sanders, D. B. 1997,  Heavily Obscured Star Formation in the II ZW 96 Galaxy Merger, AJ, 113, 1569-1579.

#18 - Goldader, J. D., Joseph, R. D., Doyon, R., & Sanders, D. B. 1997, Spectroscopy of Luminous Infrared Galaxies at 2 Microns. II. Data for Galaxies with 11.2 < (LIR/L)<11.9, ApJS, 108, 449-470.

#17 - Goldader, J. D., Joseph, R. D., Doyon, R., & Sanders, D. B. 1997, Spectroscopy of Luminous Infrared Galaxies at 2 Microns. III. Analysis for Galaxies with log (LIR/L)<11.2, ApJ, 474, 104-120.

#16 - Knapen, J. H., Laine, S., Yates, J. A., Robinson, A., Richards, A. M. S., Doyon, R., & Nadeau, D. 1997,  Resolved Structure in the Nuclear Region of the Ultraluminous Infrared Galaxy MRK 273, ApJ, 490, L29-L32.

#15 - Puxley, P. J., Doyon, R., & Ward, M. J. 1997,  The Spatial Distribution of Stellar CO Absorption in M83, ApJ, 476, 120-126. 

#14 - Doherty, R. M., Puxley, P. J., Lumsden, S. L., & Doyon, R. 1995,  Helium and hydrogen excitation in starburst galaxies - infrared and optical line ratios, MNRAS, 277, 577-593.           

#13 - Doyon, R., Nadeau, D., Joseph, R. D., Goldader, J. D., Sanders, D. B., & Rowlands, N. 1995, Near-Infrared Imaging and Spectroscopy of the Bright IRAS Galaxy VV 114, ApJ, 450, 111-121.

#12 - Goldader, J. D., Joseph, R. D., Doyon, R., & Sanders, D. B. 1995, Spectroscopy of luminous infrared galaxies at 2 microns: 1. The ultraluminous galaxies (LIR> 1012 Lsun), ApJ, 444, 97-112.

#11 - Doyon, R., Wright, G. S., & Joseph, R. D. 1994,  A near-infrared spectroscopic study of the luminous merger NGC 3256. 2: Evidence for fluorescent molecular hydrogen emission, ApJ, 421, 115-121.

#10 - Doyon, R., Joseph, R. D., & Wright, G. S. 1994, A near-infrared spectroscopic study of the luminous merger NGC 3256. 1: Constraints on the initial mass function of the starburst, ApJ, 421, 101-114.

#9 - Doyon, R., Wells, M., Wright, G. S., Joseph, R. D., Nadeau, D., & James, P. A. 1994, Stellar velocity dispersion in ARP 220 and NGC 6240: Elliptical galaxies in formation, ApJ, 437, L23-L26.

#8 - Doherty, R. M., Puxley, P., Doyon, R. & Brand, P. W. J. L. 1994, Spectroscopy of HII Regions at 2 mm Ultracompact Sources, MNRAS, 266, 497-510.

#7 - Nadeau, D., Murphy, D. C., Doyon, R., & Rowlands, N. 1994,  The Montreal near-infrared camera, PASP, 106, 909-914.

#6 - Puxley, P. J., Lumsden, S. L., Brand, P. W. J. L., & Doyon, R. 1994, Spectroscopy of Luminous IRAS Galaxies at 1.25 um, MNRAS, 270, L7-L13. 

#5 - Doyon, R., Puxley, P. J., & Joseph, R. D. 1992, The He I 2.06mm/Brg ratio in starburst galaxies - an objective constraint on the upper mass limit to the initial mass function, ApJ, 397, 117-125.

#4 - Doyon, R. & Joseph, R. D. 1989, Dust deficiency in Virgo spirals, MNRAS, 239, 347-360.

#3 - Doyon, R. & Nadeau, D. 1988, The molecular hydrogen emission from the Cepheus A star-formation region, Astrophysical Journal, 334, 883-890.

#2 - Doyon, R. & Nadeau, D. 1988, A Simple Circuit for the Remote Control of a Rotary Chopper, PASP, 100, 150-151.

#1 - Nadeau, D., Beland, S., & Doyon, R. 1987, The near-infrared spectrometer of the Observatoire du Mont Mégantic 1.6-m telescope, PASP, 99, 1333-1336.