Roles and responsibilities
Astronomer, Radio Astronomy: Focusing on star and planet formation research.
Principal Investigator: NRC New Beginnings; 350 Micron Commissioning Camera for the CCAT-p Telescope.
Co-Chair Science Working Group: Cradle of Life Science for the SKA Radio Telescope.
Science Team Member: NIRISS and NIRCam Instruments for James Webb Space Telescope.
Science Team Member: Future Space-Based Missions (CASTOR, SPICA, OST).
Current research and/or projects
JCMT Transient Survey (co-PI): A four-year monitoring of eight nearby star-forming regions with one-month cadence using the James Clerk Maxwell Telescope (JCMT) to detect brightness changes from young protostars. This is the first dedicated survey of protostellar variability in the sub-mm.
Planets in Formation (Lead): A Guaranteed Time JWST NIRISS AMI study of nearby very young stars surrounded by transition disks and possibly harbouring planets.
FAUST (Team Member): Fifty AU Study of the chemistry in the disk/envelope system of Solar-like protostars (ALMA Large Project).
Taurus Disks (Team Member): An Unbiased Survey of disk structures around young stars in Taurus (ALMA Project).
Ph.D. Astronomy, University of California at Berkeley, 1995
B.Sc. Astronomy and Physics, University of Toronto, 1989
Adjunct Professor: University of Victoria.
Lee, J-E; Lee, S; Baek, G; Aikawa, Y; Cieza, L; Yoon, S-Y; Herczeg, G; Johnstone, D; Casassus, S, “The ice composition in the disk around V883 Ori revealed by its stellar outburst”, 2019 Nature Astronomy. http://adsabs.harvard.edu/doi/10.1038/s41550-018-0680-0
Mairs, S; Lalchand, B; Bower, G; Forbrich, J; Bell, G; Herczeg, G; Johnstone, D; Chen, W-P; Lee, J-E; Hacar, A, “The JCMT Transient Survey: An Extraordinary Submillimeter Flare in the T Tauri Binary System JW 566”, 2019 ApJ 871, 72. http://adsabs.harvard.edu/abs/2019ApJ...871...72M
Johnstone, D., et al., “The JCMT Transient Survey: Stochastic and Secular Variability of Protostars and Disks In the Submillimeter Region Observed over 18 Months”, 2018 ApJ 854, 31. http://adsabs.harvard.edu/abs/2018ApJ...854...31J
Johnstone, D; Hendricks, B; Herczeg, G; Bruderer, S, “Continuum Variability of Deeply Embedded Protostars as a Probe of Envelope Structure”, 2013 ApJ 765, 133. http://adsabs.harvard.edu/abs/2013ApJ...765..133J
Pon, A; Johnstone, D; Heitsch, F, “Modes of Star Formation in Finite Molecular Clouds”, 2011 ApJ, 740, 88. http://adsabs.harvard.edu/abs/2011ApJ...740...88P
Previous work experience
2012 – 2014 Associate Director, James Clerk Maxwell Telescope,
2012 May Visiting Scientist, European Southern Observatory
2007 Sept Visiting Professor, Ecole Normale Superieure, Paris
1999 – 2001 Assistant Professor, University of Toronto
1996 – 1999 Research Associate, Canadian Institute for Theoretical Astrophysics