Canadian Institute for Theoretical Astrophysics
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The Canadian Institute for Theoretical Astrophysics (CITA) is a national research institute funded by the
Natural Sciences and Engineering Research Council The Natural Sciences and Engineering Research Council of Canada (NSERC; french: Conseil de recherches en sciences naturelles et en génie du Canada, CRSNG) is the major federal agency responsible for funding natural sciences and engineering rese ...
, located at the
University of Toronto The University of Toronto (UToronto or U of T) is a public university, public research university in Toronto, Ontario, Canada, located on the grounds that surround Queen's Park (Toronto), Queen's Park. It was founded by royal charter in 1827 ...
in
Toronto Toronto ( ; or ) is the capital city of the Canadian province of Ontario. With a recorded population of 2,794,356 in 2021, it is the most populous city in Canada and the fourth most populous city in North America. The city is the anch ...
,
Ontario Ontario ( ; ) is one of the thirteen provinces and territories of Canada.Ontario is located in the geographic eastern half of Canada, but it has historically and politically been considered to be part of Central Canada. Located in Central C ...
, Canada. CITA's mission is "to foster interaction within the Canadian theoretical Astrophysics community and to serve as an international center of excellence for theoretical studies in astrophysics." CITA was incorporated in 1984. CITA has close administrative and academic relations with the
Canadian Institute for Advanced Research The Canadian Institute for Advanced Research (CIFAR) is a Canadian-based global research organization that brings together teams of top researchers from around the world to address important and complex questions. It was founded in 1982 and is s ...
(CIFAR); several CITA faculty also serve as members of CIFAR.


History

The concept of a nationally supported institute for theoretical astrophysics dates back to discussions within the Canadian Astronomical Society in the early 1980s. A series of committees advocated a model of a university‑based institute governed by a council of Canadian astrophysicists. Proposals were solicited from universities across the country to host this institute, which by now had been named the Canadian Institute for Theoretical Astrophysics/Institut Canadien d'astrophysique theorique (CITA/ICAT). The
University of Toronto The University of Toronto (UToronto or U of T) is a public university, public research university in Toronto, Ontario, Canada, located on the grounds that surround Queen's Park (Toronto), Queen's Park. It was founded by royal charter in 1827 ...
won the resulting spirited competition, and CITA (
University of Toronto The University of Toronto (UToronto or U of T) is a public university, public research university in Toronto, Ontario, Canada, located on the grounds that surround Queen's Park (Toronto), Queen's Park. It was founded by royal charter in 1827 ...
) was established as an institute within the School of Graduate Studies in June 1984, with staff consisting of a single professor ( Peter G. Martin) as the acting director and a visiting professor from Queen's University (Richard Henriksen) and a temporary administrative assistant. Today there are 7 faculty members two of which are
Canada Research Chairs Canada Research Chair (CRC) is a title given to certain Canadian university research professors by the Canada Research Chairs Program. Program goals The Canada Research Chair program was established in 2000 as a part of the Government of Canada ...
, two administrative staff, a Systems Manager and technical computing staff. At the same time, Professor Richard Henriksen worked on establishing CITA, Inc. (a separate entity from CITA the institute at the University of Toronto) as an incorporated national institute and charity governed by an elected Council of Canadian astrophysics/relativity professors to promote research in theoretical astrophysics across the country. CITA Council is selected from CITA Inc members. There are presently 55 members of CITA, Inc. CITA's research activities are supported by the
University of Toronto The University of Toronto (UToronto or U of T) is a public university, public research university in Toronto, Ontario, Canada, located on the grounds that surround Queen's Park (Toronto), Queen's Park. It was founded by royal charter in 1827 ...
,
NSERC The Natural Sciences and Engineering Research Council of Canada (NSERC; french: Conseil de recherches en sciences naturelles et en génie du Canada, CRSNG) is the major federal agency responsible for funding natural sciences and engineering rese ...
, multiple grants by the Ontario and Federal governments, as well as private sponsors including the
Simons Foundation The Simons Foundation is a private foundation established in 1994 by Marilyn and Jim Simons with offices in New York City. As one of the largest charitable organizations in the US with assets of over $5 billion in 2022, the foundation's mission ...
and
CIFAR The Canadian Institute for Advanced Research (CIFAR) is a Canadian-based global research organization that brings together teams of top researchers from around the world to address important and complex questions. It was founded in 1982 and is s ...
.


Membership

CITA has a small number of long-term faculty members, and a larger number of short term (3- or 5-year) postdoctoral positions, as well as an active visitor program; the purpose of the relatively high influx of new researchers or visitors is to ensure that timely topics are well represented at CITA. There are currently approximately 20 postdoctoral researchers at CITA, and 4 full-time administrative and computer staff. Several graduate students in the
University of Toronto The University of Toronto (UToronto or U of T) is a public university, public research university in Toronto, Ontario, Canada, located on the grounds that surround Queen's Park (Toronto), Queen's Park. It was founded by royal charter in 1827 ...
Department of Astronomy and Astrophysics or Department of Physics work with CITA researchers throughout their graduate work, and typically ten undergraduates come to CITA to work over the summer. In 1985, Scott D. Tremaine came to CITA as its first director; Margaret Fukunaga was hired as the permanent Business Officer and Dick Bond arrived as the second faculty member. Dick Bond became the director in 1996 and Norman Murray was director 2006–2016. Since 1984, the directors of the institute have been as follows: Notable past and present faculty members of CITA also include: *Peter G. Martin, 1984–present *
Scott Tremaine Scott Duncan Tremaine (born 1950) is a Canadian-born astrophysicist. He is a fellow of the Royal Society of London, the Royal Society of Canada and the National Academy of Sciences. Tremaine is widely regarded as one of the world's leading as ...
, 1985–1997, 2020–present * Dick Bond, 1985–present *Nick Kaiser, 1988–1997 *Norm Murray, 1993–present *Lev Kofman, 1998–2009 * Ue-Li Pen, 1998–present * Chris Thompson, 2000–present *Roman Rafikov, 2005–2007 *Harald Pfeiffer, 2009–2018 *Daniel Green, 2014–2015


Research

CITA has active research programs in
cosmology Cosmology () is a branch of physics and metaphysics dealing with the nature of the universe. The term ''cosmology'' was first used in English in 1656 in Thomas Blount's ''Glossographia'', and in 1731 taken up in Latin by German philosopher ...
(particularly in studies of the
cosmic microwave background In Big Bang cosmology the cosmic microwave background (CMB, CMBR) is electromagnetic radiation that is a remnant from an early stage of the universe, also known as "relic radiation". The CMB is faint cosmic background radiation filling all spac ...
),
early universe The chronology of the universe describes the history and future of the universe according to Big Bang cosmology. Research published in 2015 estimates the earliest stages of the universe's existence as taking place 13.8 billion years ago, wit ...
studies and cosmic inflation,
neutron stars A neutron star is the collapsed core of a massive supergiant star, which had a total mass of between 10 and 25 solar masses, possibly more if the star was especially metal-rich. Except for black holes and some hypothetical objects (e.g. white ...
(especially scintillometry and
magnetars A magnetar is a type of neutron star with an extremely powerful magnetic field (∼109 to 1011 T, ∼1013 to 1015 G). The magnetic-field decay powers the emission of high-energy electromagnetic radiation, particularly X-rays and gamma rays.War ...
),
fast radio burst In radio astronomy, a fast radio burst (FRB) is a transient radio pulse of length ranging from a fraction of a millisecond to 3 seconds, caused by some high-energy astrophysical process not yet understood. Astronomers estimate the average FRB rel ...
,
active galaxies An active galactic nucleus (AGN) is a compact region at the center of a galaxy that has a much-higher-than-normal luminosity over at least some portion of the electromagnetic spectrum with characteristics indicating that the luminosity is not pr ...
, star formation and
planet formation The nebular hypothesis is the most widely accepted model in the field of cosmogony to explain the formation and evolution of the Solar System (as well as other planetary systems). It suggests the Solar System is formed from gas and dust orbitin ...
.


See also

*
Algonquin 46m radio telescope The Algonquin 46m radio telescope (ARO) is a radio telescope at the Algonquin Radio Observatory, Canada. This radio telescope is historically famous for taking part in the first successful very long baseline interferometry experiment in the 196 ...
*
Algonquin Radio Observatory The Algonquin Radio Observatory (ARO) is a radio observatory located in Algonquin Provincial Park in Ontario, Canada. It opened in 1959 in order to host a number of the National Research Council of Canada's (NRC) ongoing experiments in a more ra ...
*
Dominion Astrophysical Observatory The Dominion Astrophysical Observatory, located on Observatory Hill, in Saanich, British Columbia, was completed in 1918 by the Canadian government. The Dominion architect responsible for the building was Edgar Lewis Horwood. The main instrument ...
*
Dominion Radio Astrophysical Observatory The Dominion Radio Astrophysical Observatory is a research facility founded in 1960 and located at Kaleden, British Columbia, Canada. The site houses four radio telescopes: an interferometric radio telescope, a 26-m single-dish antenna, a solar ...
*
Herzberg Institute of Astrophysics The NRC Herzberg Astronomy and Astrophysics Research Centre (NRC Herzberg, HAA) is the leading Canadian centre for astronomy and astrophysics. It is based in Victoria, British Columbia. The current Director-General, as of 2021, is Luc Simard. ...


References

J. Richard Bond receives 2008
Gruber Prize in Cosmology The Gruber Prize in Cosmology, established in 2000, is one of three prestigious international awards worth US$500,000 made by the Gruber Foundation, a non-profit organization based at Yale University in New Haven, Connecticut. Since 2001, the G ...


External links


The Canadian Institute for Theoretical AstrophysicsAn incomplete listing of recent CITA publications
{{DEFAULTSORT:Canadian Institute For Theoretical Astrophysics University of Toronto Astronomy institutes and departments