Frank Shu
Frank Hsia-San Shu (; born June 2, 1943), is a Chinese-American astrophysicist, astronomer and author. He is currently a University Professor Emeritus at the University of California, Berkeley and University of California, San Diego. He is best known for proposing the density wave theory to explain the structure of spiral galaxies, and for describing a model of star formation, where a giant dense molecular cloud collapses to form a star. Early life and education Shu's hometown is Wenzhou, Zhejiang, but he was born in Kunming ,Yunnan, in 1943. His father, Shu Shien-Siu, was a mathematician and an instructor at the National Tsing Hua University, which, at that time due to World War II, was temporarily relocated to Kunming from Beijing. The senior Shu would serve as the President of the National Tsing Hua University from 1970 to 1975. When Shu was 2 months old, his father went to the United States for study and, later, work. Shu and his family went to Taiwan through Hong Kong ...
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Xu (surname 徐)
Xu () is a Chinese-language surname. In the Wade-Giles system of romanization, it is spelled as "Hsu", which is commonly used in Taiwan. It is different from Xu (surname 許), represented by a different character. Variations in other Chinese varieties and languages In Wu Chinese including Shanghainese, the surname 徐 is transcribed as Zee, as seen in the historical place name Zikawei in Shanghai (Xujiahui in Pinyin). In Gan Chinese, it can be spelled Hi or Hé. In Cantonese, 徐 is often transcribed as Tsui, T'sui, Choi, Chui or even Tsua. In modern Vietnamese, the character 徐 is written Từ and Sy when migrating to the English-speaking World, particularly the United States. Other spellings include Hee and Hu. In Japanese, the surname 徐 is transliterated as Omomuro (kunyomi) or Jo (onyomi or Sino-Japanese). In Korean, 徐 is romanized as Seo in the Revised Romanization of Korean and written 서 in Hangul. Origin According to legend, Ruomu was one of the two sons ...
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Mathematics Genealogy Project
The Mathematics Genealogy Project (MGP) is a web-based database for the academic genealogy of mathematicians.. By 31 December 2021, it contained information on 274,575 mathematical scientists who contributed to research-level mathematics. For a typical mathematician, the project entry includes graduation year, thesis title (in its Mathematics Subject Classification), '' alma mater'', doctoral advisor, and doctoral students.. Origin of the database The project grew out of founder Harry Coonce's desire to know the name of his advisor's advisor.. Coonce was Professor of Mathematics at Minnesota State University, Mankato, at the time of the project's founding, and the project went online there in fall 1997.Mulcahy, Colm;The Mathematics Genealogy Project Comes of Age at Twenty-one(PDF) AMS Notices (May 2017) Coonce retired from Mankato in 1999, and in fall 2002 the university decided that it would no longer support the project. The project relocated at that time to North Dakota State U ...
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Astrophysics
Astrophysics is a science that employs the methods and principles of physics and chemistry in the study of astronomical objects and phenomena. As one of the founders of the discipline said, Astrophysics "seeks to ascertain the nature of the heavenly bodies, rather than their positions or motions in space–''what'' they are, rather than ''where'' they are." Among the subjects studied are the Sun, other stars, galaxies, extrasolar planets, the interstellar medium and the cosmic microwave background. Emissions from these objects are examined across all parts of the electromagnetic spectrum, and the properties examined include luminosity, density, temperature, and chemical composition. Because astrophysics is a very broad subject, ''astrophysicists'' apply concepts and methods from many disciplines of physics, including classical mechanics, electromagnetism, statistical mechanics, thermodynamics, quantum mechanics, relativity, nuclear and particle physics, and atomic and ...
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Chinese Americans
Chinese Americans are Americans of Han Chinese ancestry. Chinese Americans constitute a subgroup of East Asian Americans which also constitute a subgroup of Asian Americans. Many Chinese Americans along with their ancestors trace lineage from mainland China, Hong Kong, Macau, Malaysia, Singapore, Taiwan, as well as other regions which are inhabited by large populations of the Chinese diaspora, especially Southeast Asia and some other countries such as Australia, Canada, France, South Africa, New Zealand, and the United Kingdom. Chinese-Americans include Chinese from the Chinese circle and around the world who became naturalized U.S. citizens and their natural-born descendants in the United States. The Chinese American community is the largest overseas Chinese community outside Asia. It is also the third largest community in the Chinese diaspora, behind the Chinese communities in Thailand and Malaysia. The 2016 Community Survey of the US Census estimates a popul ...
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Bruce Medal
The Catherine Wolfe Bruce Gold Medal is awarded every year by the Astronomical Society of the Pacific for outstanding lifetime contributions to astronomy. It is named after Catherine Wolfe Bruce, an American patroness of astronomy, and was first awarded in 1898. List of Bruce Medalists SourceAstronomical Society of the Pacific * 1898 – Simon Newcomb * 1899 – Arthur Auwers * 1900 – David Gill * 1902 – Giovanni V. Schiaparelli * 1904 – William Huggins * 1906 – Hermann Carl Vogel * 1908 – Edward C. Pickering * 1909 – George William Hill * 1911 – Henri Poincaré * 1913 – Jacobus C. Kapteyn * 1914 – Oskar Backlund * 1915 – William Wallace Campbell * 1916 – George Ellery Hale * 1917 – Edward Emerson Barnard * 1920 – Ernest W. Brown * 1921 – Henri A. Deslandres * 1922 – Frank W. Dyson * 1923 – Benjamin Baillaud * 1924 – Arthur Stanley Eddington * 1925 – Henry Norris Russell * 1926 – Robert G. Aitken * 1927 – Herbert Ha ...
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Shaw Prize
The Shaw Prize is an annual award presented by the Shaw Prize Foundation. Established in 2002 in Hong Kong, it honours "individuals who are currently active in their respective fields and who have recently achieved distinguished and significant advances, who have made outstanding contributions in academic and scientific research or applications, or who in other domains have achieved excellence. The award is dedicated to furthering societal progress, enhancing quality of life, and enriching humanity's spiritual civilization." The prize has been described as the "Nobel of the East". It was founded by Hong Kong entertainment mogul and philanthropist Run Run Shaw (邵逸夫). Award The prize consists of three awards in the fields of astronomy, life science and medicine, and mathematical sciences; it is not awarded posthumously. Nominations are submitted by invited individuals beginning each year in September. Winners are announced in the summer and receive the award at a ce ...
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Dannie Heineman Prize For Astrophysics
The Dannie Heineman Prize for Astrophysics is jointly awarded each year by the American Astronomical Society and American Institute of Physics for outstanding work in astrophysics. It is funded by the Heineman Foundation in honour of Dannie Heineman. Recipients SourceAAS See also * Dannie Heineman Prize for Mathematical Physics * List of astronomy awards * List of physics awards * Prizes named after people A prize is an award to be given to a person or a group of people (such as sporting teams and organizations) to recognize and reward their actions and achievements.

Brouwer Award (Division On Dynamical Astronomy)
The Brouwer Award is awarded annually by the Division on Dynamical Astronomy of the American Astronomical Society for outstanding lifetime achievement in the field of dynamical astronomy. The prize is named for Dirk Brouwer. Recipients SourceDivision on Dynamical Astronomy of the American Astronomical Society See also * List of astronomy awards * Prizes named after people A prize is an award to be given to a person or a group of people (such as sporting teams and organizations) to recognize and reward their actions and achievements.

Helen B
Helen may refer to: People * Helen of Troy, in Greek mythology, the most beautiful woman in the world * Helen (actress) (born 1938), Indian actress * Helen (given name), a given name (including a list of people with the name) Places * Helen, Georgia, United States, a small city * Helen, Maryland, United States, an unincorporated place * Helen, Washington, an unincorporated community in Washington state, US * Helen, West Virginia, a census-designated place in Raleigh County * Helen Falls, a waterfall in Ontario, Canada * Lake Helen (other), several places called Helen Lake or Lake Helen * Helen, an ancient name of Makronisos island, Greece * The Hellenic Republic, Greece Arts, entertainment, and media * ''Helen'' (album), a 1981 Grammy-nominated album by Helen Humes * ''Helen'' (2008 film), a British drama starring Annie Townsend * ''Helen'' (2009 film), an American drama film starring Ashley Judd * ''Helen'' (2017 film), an Iranian drama film * ''Helen'' (2019 ...
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Star Formation
Star formation is the process by which dense regions within molecular clouds in The "medium" is present further soon.-->interstellar space, sometimes referred to as "stellar nurseries" or "-forming regions", and form s. As a branch of , star formation includes the study of the interstellar medium (ISM ...
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Density Wave Theory
Density wave theory or the Lin–Shu density wave theory is a theory proposed by C.C. Lin and Frank Shu in the mid-1960s to explain the spiral arm structure of spiral galaxies. The Lin–Shu theory introduces the idea of long-lived quasistatic spiral structure (QSSS hypothesis). In this hypothesis, the spiral pattern rotates in a particular angular frequency (pattern speed), whereas the stars in the galactic disk are orbiting at a different speed depending on their distance to the galaxy center. The presence of spiral density waves in galaxies has implications on the star formation, since the gas orbiting around the galaxy may be compressed and form shock periodically. Theoretically, the formation of global spiral pattern is treated as an instability of the stellar disk caused by the self-gravity, as opposed to tidal interactions. The mathematical formulation of the theory has also been extended to other astrophysical disk systems, such as Saturn's rings. Galactic spiral arms ...
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Eve Ostriker
Eve Charis Ostriker (born 1965) is an American astrophysicist, known for her research on star formation and on related topics involving superbubbles, molecular clouds, young stars, computational fluid dynamics, and supersonic turbulence. She is a professor in the Department of Astrophysical Sciences of Princeton University. Education and career Ostriker is the daughter of astrophysicist Jeremiah P. Ostriker and poet Alicia Ostriker. She graduated ''magna cum laude'' from Harvard College in 1987, and after a year as a visiting student at the University of Oxford, went to the University of California, Berkeley for graduate studies in physics. There, she earned a master's degree in 1990 and completed her Ph.D. in 1993. Her doctoral dissertation, ''Gravitational Torques on Star-Disk Systems'', was supervised by Frank Shu. After postdoctoral research in astronomy at Berkeley and the Center for Astrophysics Harvard & Smithsonian, she became an assistant professor of astronomy at th ...
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