Construction of Canada's Dominion Astrophysical Observatory (DAO) commenced in 1914 with first light on 6 May 1918. As distinct from the contemporaneous development with private funding of major ...observatories in the western United States, DAO was (and remains) funded by the federal government. Canada's initial foray into ‘big science’, creation of DAO during the First World War was driven by Canada's desire to contribute significantly to the international rise of observational astrophysics enabled by photographic spectroscopy. In 2009 the Observatory was designated a National Historic Site. DAO's varied, rich contributions to the astronomical heritage of the 20th century continue in the 21st century, with particularly strong ties to Maunakea.
We present accurate photometry on the Johnson B, Kron-Cousins R photometric system for approximately 100,000 stars in a field centered on the dwarf spheroidal galaxy in Fornax. We identify numerous ...probable short-period variable stars, blue stars that appear to be the main sequence of a small population with an age of order 108 yr, and two distinct types of luminous red star: an extended sequence of primarily carbon stars and a clump of mostly M giants slightly more luminous than the giant-branch tip. The spatial distribution of each of these subpopulations within the Fornax dwarf galaxy is considered. (Author)
Northern Star Broughton, R. Peter; Hesser, James E
2018
eBook
Northern Star explores Plaskett's unorthodox and fascinating life from his rural roots near Woodstock through his days as a technician at the University of Toronto to his initiation in astronomy at ...the Dominion Observatory in Ottawa.
PDF
