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Mario Hamuy
Mario Andrés Hamuy Wackenhut (born 1960) is a Chilean Astronomer and Professor of Astronomy at the University of Chile and Cerro Calan Observatory. He is well known for his observational work on all classes of supernovae, especially the use of Type Ia and Type II supernovae as measures of cosmic distance. Career Mario Hamuy is the son of Mario Hamuy Berr, an economist and politician of levantine descent. He studied at Instituto Nacional General José Miguel Carrera of Santiago. Hamuy was a student in astronomy and physics at the University of Chile working with Jorge Melnick. In February 1987, he came to the Cerro Tololo Inter-American Observatory and within a few days of his arrival when the Type II supernova SN1987A exploded in the Large Magellanic Cloud, he began a major campaign at CTIO to monitor this important supernova. In 1989, in collaboration with Jose Maza, Mark M. Phillips, and Nicholas Suntzeff, he began the Calán/Tololo Supernova Survey which led to the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chile
Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east and the Pacific Ocean to the west. Chile covers an area of , with a population of 17.5 million as of 2017. It shares land borders with Peru to the north, Bolivia to the north-east, Argentina to the east, and the Drake Passage in the far south. Chile also controls the Pacific islands of Juan Fernández, Isla Salas y Gómez, Desventuradas, and Easter Island in Oceania. It also claims about of Antarctica under the Chilean Antarctic Territory. The country's capital and largest city is Santiago, and its national language is Spanish. Spain conquered and colonized the region in the mid-16th century, replacing Inca rule, but failing to conquer the independent Mapuche who inhabited what is now south-central Chile. In 1818, after declaring in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deceleration Parameter
The deceleration parameter ''q'' in cosmology is a dimensionless measure of the cosmic acceleration of the expansion of space in a Friedmann–Lemaître–Robertson–Walker universe. It is defined by: :q \ \stackrel\ -\frac where a is the scale factor of the universe and the dots indicate derivatives by proper time. The expansion of the universe is said to be "accelerating" if \ddot > 0 (recent measurements suggest it is), and in this case the deceleration parameter will be negative. The minus sign and name "deceleration parameter" are historical; at the time of definition \ddot was expected to be negative, so a minus sign was inserted in the definition to make q positive in that case. Since the evidence for the accelerating universe in the 1998–2003 era, it is now believed that \ddot is positive therefore the present-day value q_0 is negative (though q was positive in the past before dark energy became dominant). In general q varies with cosmic time, except in a few spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CONICYT
CONICYT is a Chilean government agency responsible for coordinating, promoting and aiding scientific research in the country. The name is an acronym of ''Comisión Nacional de Investigación Científica y Tecnológica'' meaning "National Commission for Scientific and Technological Research". CONICYT is part of the Ministry of Education. CONICYT provides grants through several programs: * FONDECYT The National Fund for Scientific and Technological Development (Spanish: ''Fondo Nacional de Desarrollo Científico y Tecnológico''), abbreviated FONDECYT, is the main public fund of the Government of Chile to promote basic scientific and technol ... (National Fund for Scientific and Technological Development) * FONDEF (Fund for the Promotion of Scientific and Technological Development) * FONDAP (Financing Fund Research Centres in Priority Areas) * National Fund for Research and Development in Health * Regional Fund for Scientific and Technological Development * Explore program Ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
El Mostrador
El Mostrador is a Chilean online newspaper, founded on 1 March 2000. Its current president is Germán Olmedo Acedvedo and its director is Federico Joannon Errázuriz. History ''El Mostrador'' was launched on 1 March 2000 and is Chile's first exclusively digital newspaper. On 20 November 2001, part of its journalistic content was paywalled, but in 2007 it was reopened, completely free of charge. As of 2012, its historical databases are also free and open access. On 25 May 2010 the newspaper launched an online television channel, «El Mostrador TV», that was transmitted for a digital television signal on channels 24, 26, 27, 28, 30 and 33 within the ring of Américo Vespucio Avenue in Santiago. Organization ''El Mostrador'' it is an ideology Pluralist journal owned by La Plaza S.A. Its president is Germán Olmedo Acevedo, while its vice president is Federico Joannon Errázuriz. The journalistic director is Héctor Cossio López and the deputy director is Iván Weissman. Content T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Prize For Exact Sciences (Chile)
The National Prize for Exact Sciences ( es, Premio Nacional de Ciencias Exactas) was created in 1992 as one of the replacements for the National Prize for Sciences under Law 19169. The other two prizes in this same area are for Natural Sciences and Applied Sciences and Technologies. It is part of the National Prize of Chile. Jury The jury is made up of the Minister of Education, who calls it, the Rector of the University of Chile, the President of the , a representative of the Council of Rectors, and the last recipient of the prize. Winners * 1993, Servet Martínez and Eric Goles (mathematics) * 1995, Claudio Bunster (physics) * 1997, María Teresa Ruiz (astronomy) * 1999, José Maza Sancho (astronomy) * 2001, (physics) * 2003, Carlos Conca (mathematics) * 2005, (physics) * 2007, (physics) * 2009, Ricardo Baeza Rodríguez (mathematics) * 2011, (mathematics) * 2013, Manuel del Pino (mathematics) * 2015, Mario Hamuy (astronomy) * 2017, Guido Garay Brignardello (astronomy) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minor Planet Circulars
The Minor Planet Center (MPC) is the official body for observing and reporting on minor planets under the auspices of the International Astronomical Union (IAU). Founded in 1947, it operates at the Smithsonian Astrophysical Observatory. Function The Minor Planet Center is the official worldwide organization in charge of collecting observational data for minor planets (such as asteroids), calculating their orbits and publishing this information via the '' Minor Planet Circulars''. Under the auspices of the International Astronomical Union (IAU), it operates at the Smithsonian Astrophysical Observatory, which is part of the Center for Astrophysics along with the Harvard College Observatory. The MPC runs a number of free online services for observers to assist them in observing minor planets and comets. The complete catalogue of minor planet orbits (sometimes referred to as the "Minor Planet Catalogue") may also be freely downloaded. In addition to astrometric data, the MPC collect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minor Planet Center
The Minor Planet Center (MPC) is the official body for observing and reporting on minor planets under the auspices of the International Astronomical Union (IAU). Founded in 1947, it operates at the Smithsonian Astrophysical Observatory. Function The Minor Planet Center is the official worldwide organization in charge of collecting observational data for minor planets (such as asteroids), calculating their orbits and publishing this information via the '' Minor Planet Circulars''. Under the auspices of the International Astronomical Union (IAU), it operates at the Smithsonian Astrophysical Observatory, which is part of the Center for Astrophysics along with the Harvard College Observatory. The MPC runs a number of free online services for observers to assist them in observing minor planets and comets. The complete catalogue of minor planet orbits (sometimes referred to as the "Minor Planet Catalogue") may also be freely downloaded. In addition to astrometric data, the MPC collect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rafael Ferrando
Rafael Ferrando (born 1966) is a Spanish astronomer, credited by the Minor Planet Center with the discovery of numerous minor planets According to the International Astronomical Union (IAU), a minor planet is an astronomical object in direct orbit around the Sun that is exclusively classified as neither a planet nor a comet. Before 2006, the IAU officially used the term ''minor ... between 2001 and 2010. The main-belt asteroid 161545 Ferrando, discovered by Juan Lacruz, was named after him on 24 November 2007 (). List of discovered minor planets References {{DEFAULTSORT:Ferrando, Rafael 1966 births Discoverers of minor planets * Living people 21st-century Spanish astronomers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
109097 Hamuy
1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest positive integer. It is also sometimes considered the first of the infinite sequence of natural numbers, followed by 2, although by other definitions 1 is the second natural number, following 0. The fundamental mathematical property of 1 is to be a multiplicative identity, meaning that any number multiplied by 1 equals the same number. Most if not all properties of 1 can be deduced from this. In advanced mathematics, a multiplicative identity is often denoted 1, even if it is not a number. 1 is by convention not considered a prime number; this was not universally accepted until the mid-20th century. Additionally, 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adriaan Jan Wesselink
Adriaan Jan Wesselink (1909–1995) was a Dutch astronomer who worked successively in the Netherlands, South Africa and the United States. He specialised in observing and understanding the characteristics of stars, particularly variable stars. Early life Adriaan Wesselink was born on 7 April 1909 in Hellevoetsluis in the Netherlands. His father was a medical doctor and his mother was a nurse. Inspired by his parents, Adriaan Wesselink developed an interest in science. Wesselink studied physics, mathematics and astronomy at Utrecht University, leading to the award of a bachelor of science degree. Astronomical research in the Netherlands Wesselink proceeded to Leiden University where he was appointed to an assistantship. He pursued research into variable stars. He was trained by prominent astronomers including Ejnar Hertzsprung, Willem de Sitter and Jan Woltjer. He made photographic observations of the brightness of the Sun during the total eclipse of 19 June 1936 outside ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walter Baade
Wilhelm Heinrich Walter Baade (March 24, 1893 – June 25, 1960) was a German astronomer who worked in the United States from 1931 to 1959. Biography The son of a teacher, Baade finished school in 1912. He then studied maths, physics and astronomy at the universities of Münster and Göttingen. After receiving his PhD in 1919, Baade worked at Hamburg Observatory at Bergedorf from 1919 to 1931. There in 1920 he discovered 944 Hidalgo, the first of a class of minor planets now called Centaurs which cross the orbits of giant planets. He worked at Mount Wilson Observatory from 1931 to 1958. There, during World War II, he took advantage of wartime blackout conditions (which reduced light pollution), to resolve stars in the center of the Andromeda Galaxy for the first time. These observations led him to define distinct "populations" for stars (Population I and Population II). The same observations led him to discover that there are two types of Cepheid variable stars. Using this disc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steward Observatory
Steward Observatory is the research arm of the Department of Astronomy at the University of Arizona (UArizona). Its offices are located on the UArizona campus in Tucson, Arizona (US). Established in 1916, the first telescope and building were formally dedicated on April 23, 1923. It now operates, or is a partner in telescopes at five mountain-top locations in Arizona, one in New Mexico, one in Hawaii, and one in Chile. It has provided instruments for three different space telescopes and numerous terrestrial ones. Steward also has one of the few facilities in the world that can cast and figure the very large primary mirrors used in telescopes built in the early 21st century. History Steward Observatory owes its existence to the efforts of American astronomer and dendrochronologist Andrew Ellicott Douglass. In 1906, Douglass accepted a position as Assistant Professor of Physics and Geography at the University of Arizona in Tucson, Arizona. Almost immediately upon his arrival ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
