Arthur Robert Hogg
Encyclopedia
Arthur Robert Hogg was an Australia
n physicist
and astronomer
.
He was born in Melbourne, Victoria, and was educated at the Royal Melbourne Institute of Technology and at the University of Melbourne
where he earned his B.Sc. in 1923 and M.S.
in 1925. In 1927, he began working at the Broken Hill Associated Smelters in Port Pirie, South Australia
, becoming the assistant supervisor of research, and he remained there until 1929. He then joined the Mount Stromlo Observatory
, then called the Commonwealth Solar Observatory, as an assistant and he remained associated with the observatory until his death in 1966.
At Mount Stromlo, he took up the study of electrical phenomena in the atmosphere
, including ionization in the lower atmosphere. He then transitioned into the study of cosmic ray
s. In 1933 he was married to Irene Doris Tyson (known as Yandell). The couple had two sons, Robert Ernest Tremayne b 1936 and Garth Richard b. 1940 and a daughter, Elizabeth Irene born 1946.
Beginning in 1940, near the start of World War II, he worked as a physicist in the Chemical Defence Section at the Munitions Supply Laboratories in Maribyrnong
. There his work was focused on the study of respirators. In 1944, he became secretary of the Physical and Meteorological Sub-Committee at the Lab.
After the war he returned to work at observatory. He was awarded his Ph.D.
in 1950 from the University of Melbourne, based on his study of cosmic rays. He now began astronomical studies using photoelectric photometry
and produced a series of papers on eclipsing variable
s, globular cluster
s in the galaxy, and the magellanic clouds
.
He also became involved in the administration of the observatory and played a leading role in establishing the new 74 inches (1,879.6 mm) telescope. Later he selected Siding Spring Mountain
as the site of an 150 inches (3,810 mm) telescope, located further from the encroaching growth near the older observatory. He was the deputy director of the Mount Stromlo Observatory from 1961 to 1966.
Hogg served in other positions of note, including as president of the Royal Society of Canberra in 1954; chairman of the Australian Institute of Physics, Australian Capital Territory branch, 1964, and the Commission 6 on Astronomical Telegrams of the International Astronomical Union
from 1961 until 1964.
Australia
Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...
n physicist
Physicist
A physicist is a scientist who studies or practices physics. Physicists study a wide range of physical phenomena in many branches of physics spanning all length scales: from sub-atomic particles of which all ordinary matter is made to the behavior of the material Universe as a whole...
and astronomer
Astronomer
An astronomer is a scientist who studies celestial bodies such as planets, stars and galaxies.Historically, astronomy was more concerned with the classification and description of phenomena in the sky, while astrophysics attempted to explain these phenomena and the differences between them using...
.
He was born in Melbourne, Victoria, and was educated at the Royal Melbourne Institute of Technology and at the University of Melbourne
University of Melbourne
The University of Melbourne is a public university located in Melbourne, Victoria. Founded in 1853, it is the second oldest university in Australia and the oldest in Victoria...
where he earned his B.Sc. in 1923 and M.S.
Master of Science
A Master of Science is a postgraduate academic master's degree awarded by universities in many countries. The degree is typically studied for in the sciences including the social sciences.-Brazil, Argentina and Uruguay:...
in 1925. In 1927, he began working at the Broken Hill Associated Smelters in Port Pirie, South Australia
Port Pirie, South Australia
-Transport:Port Pirie is located off National Highway One. It is serviced by an airport five minutes out of the city.- Railways :The first railways in Port Pirie were of the narrow [3' 6"] gauge....
, becoming the assistant supervisor of research, and he remained there until 1929. He then joined the Mount Stromlo Observatory
Mount Stromlo Observatory
Mount Stromlo Observatory located just outside of Canberra, Australia, is part of the Research School of Astronomy and Astrophysics at the Australian National University .-History:...
, then called the Commonwealth Solar Observatory, as an assistant and he remained associated with the observatory until his death in 1966.
At Mount Stromlo, he took up the study of electrical phenomena in the atmosphere
Atmosphere
An atmosphere is a layer of gases that may surround a material body of sufficient mass, and that is held in place by the gravity of the body. An atmosphere may be retained for a longer duration, if the gravity is high and the atmosphere's temperature is low...
, including ionization in the lower atmosphere. He then transitioned into the study of cosmic ray
Cosmic ray
Cosmic rays are energetic charged subatomic particles, originating from outer space. They may produce secondary particles that penetrate the Earth's atmosphere and surface. The term ray is historical as cosmic rays were thought to be electromagnetic radiation...
s. In 1933 he was married to Irene Doris Tyson (known as Yandell). The couple had two sons, Robert Ernest Tremayne b 1936 and Garth Richard b. 1940 and a daughter, Elizabeth Irene born 1946.
Beginning in 1940, near the start of World War II, he worked as a physicist in the Chemical Defence Section at the Munitions Supply Laboratories in Maribyrnong
Maribyrnong, Victoria
Maribyrnong is a suburb 8 km north-west of Melbourne, Victoria, Australia. Its Local Government Area is the City of Maribyrnong, part of River Ward. At the 2006 Census, Maribyrnong had a population of 8242....
. There his work was focused on the study of respirators. In 1944, he became secretary of the Physical and Meteorological Sub-Committee at the Lab.
After the war he returned to work at observatory. He was awarded his Ph.D.
Ph.D.
A Ph.D. is a Doctor of Philosophy, an academic degree.Ph.D. may also refer to:* Ph.D. , a 1980s British group*Piled Higher and Deeper, a web comic strip*PhD: Phantasy Degree, a Korean comic series* PhD Docbook renderer, an XML renderer...
in 1950 from the University of Melbourne, based on his study of cosmic rays. He now began astronomical studies using photoelectric photometry
Photometry (astronomy)
Photometry is a technique of astronomy concerned with measuring the flux, or intensity of an astronomical object's electromagnetic radiation...
and produced a series of papers on eclipsing variable
Variable star
A star is classified as variable if its apparent magnitude as seen from Earth changes over time, whether the changes are due to variations in the star's actual luminosity, or to variations in the amount of the star's light that is blocked from reaching Earth...
s, globular cluster
Globular cluster
A globular cluster is a spherical collection of stars that orbits a galactic core as a satellite. Globular clusters are very tightly bound by gravity, which gives them their spherical shapes and relatively high stellar densities toward their centers. The name of this category of star cluster is...
s in the galaxy, and the magellanic clouds
Magellanic Clouds
The two Magellanic Clouds are irregular dwarf galaxies visible in the southern hemisphere, which are members of our Local Group and are orbiting our Milky Way galaxy...
.
He also became involved in the administration of the observatory and played a leading role in establishing the new 74 inches (1,879.6 mm) telescope. Later he selected Siding Spring Mountain
Siding Spring Observatory
Siding Spring Observatory near Coonabarabran, New South Wales, Australia, part of the Research School of Astronomy & Astrophysics at the Australian National University , incorporates the Anglo-Australian Telescope along with a collection of other telescopes owned by the Australian National...
as the site of an 150 inches (3,810 mm) telescope, located further from the encroaching growth near the older observatory. He was the deputy director of the Mount Stromlo Observatory from 1961 to 1966.
Hogg served in other positions of note, including as president of the Royal Society of Canberra in 1954; chairman of the Australian Institute of Physics, Australian Capital Territory branch, 1964, and the Commission 6 on Astronomical Telegrams of the International Astronomical Union
International Astronomical Union
The International Astronomical Union IAU is a collection of professional astronomers, at the Ph.D. level and beyond, active in professional research and education in astronomy...
from 1961 until 1964.
Awards and honors
- Fellow of the Australian Institute of Physics.
- Fellow of the Australian Academy of Science, 1954.
- The crater HoggHogg (crater)Hogg is a lunar crater on the Moon's far side. It lies less than a crater diameter to the south-southwest of the somewhat larger Kiddinu. This is an old, worn feature with an outer rim that has been eroded to the point where it just forms a rounded crest about the interior. Small craterlets lie...
on the MoonMoonThe Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...
is co-named for Arthur Hogg and Frank S. HoggFrank Scott HoggFrank Scott Hogg was born to Dr. James Scott Hogg and Ida Barberon in Preston, Ontario.After earning and undergraduate degree from the University of Toronto, Hogg received the second doctorate in astronomy awarded at Harvard University in 1929 where he pioneered in the study of spectrophotometry...
.
External links
- Australian Academy of Science extensive biography.
- Physicists in Australia to 1945.