Étienne Artigau

Research Associate


Coordinates


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


Phone : 514-343-6834
Fax : 514-343-2071
Email : artigau (AT) astro (DOT) umontreal (DOT) ca
Office : D-457

CRAQ web page

Research
   
    I am one of the two project scientists of the SPIRou near-infrared spectrograph. This instrument will see first light in 2015 at the CFHT and is built by an international team of institutions in France, Canada, Swiss, Taiwan and Hawaii. I am also in charge of queue observations at the Observatoire du Mont-Mégantic and support near-infrared instruments. My research projects are mainly linked to the study of brown dwarfs, their variability and exoplanet searches.

Graduate Students
Looking for planets around young, low-mass stars. (2010 - current)

Publications

#14 - Delorme, P., Gagné, J.Malo, L., Reylé, C., Artigau, É.Albert, L., Forveille, T., Delfosse, X., Allard, F., Homeier, D. 2012, CFBDSIR2149-0403: a 4-7 Jupiter-mass free-floating planet in the young moving group AB Doradus ?, Accepted for publication in A&A. arxiv:1210.0305.

#13 - 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.

#12 - 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.

#11 - 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.

#10 - 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.

#9 - 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.

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

#7 - 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.

#6 - 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.

#5 - 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.        

#4 - 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.

#3 - 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.

#2 - 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.

#1 - 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.

Documents
  • PhD Thesis - Time-variability of T dwarfs and the development of wide field infrared camera.
  • Publications on ADS