Timeline of white dwarfs, neutron stars, and supernovae
Timeline of white dwarfs , neutron stars , and supernovae
Note that this list is mainly about the development of knowledge, but also about some supernovae taking place. For a separate list of the latter, see the section "Notable supernovae" in the article supernova .
1006 - The brightest (magnitude -9) recorded supernova is observed in the constellation of Lupus
1054 - Chinese and American Indian astronomers observe the Crab supernova explosion,
1572 - Tycho Brahe discovers his supernova in Cassiopeia ,
1604 - Johannes Kepler 's supernova in Serpens is observed,
1862 - Alvan Clark observes Sirius B ,
1866 - William Huggins studies the spectrum of a nova and discovers that it is surrounded by a cloud of hydrogen ,
1885 - A supernova is observed in the Andromeda Galaxy leading to recognition of supernovae as a distinct class of novae
1914 - Walter Sydney Adams determines an incredibly high density for Sirius B ,
1926 - Ralph Fowler uses Fermi-Dirac statistics to explain white dwarf stars,
1930 - Subrahmanyan Chandrasekhar discovers the white dwarf maximum mass limit,
1933 - Fritz Zwicky and Walter Baade propose the neutron star idea and suggest that supernovae might be created by the collapse of normal stars to neutron stars---they also point out that such events can explain the cosmic ray background ,
1939 - Robert Oppenheimer and George Volkoff calculate the first neutron star models,
1942 - J.J.L. Duyvendak, Nicholas Mayall , and Jan Oort deduce that the Crab Nebula is a remnant of the 1054 supernova observed by Chinese astronomers,
1958 - Evry Schatzman , Kent Harrison , Masami Wakano , and John Wheeler show that white dwarfs are unstable to inverse beta decay ,
1962 - Riccardo Giacconi , Herbert Gursky , Frank Paolini , and Bruno Rossi discover Sco X-1,
1967 - Jocelyn Bell and Anthony Hewish discover radio pulses from a pulsar ,
1967 - J.R. Harries, Ken McCracken , R.J. Francey, and A.G. Fenton discover the first X-ray transient (Cen X-2),
1968 - Thomas Gold proposes that pulsars are rotating neutron stars ,
1969 - David Staelin , E.C. Reifenstein, William Cocke , Mike Disney , and Donald Taylor discover the Crab Nebula pulsar thus connecting supernovae , neutron stars , and pulsars ,
1971 - Riccardo Giacconi, Herbert Gursky, Ed Kellogg , R. Levinson, E. Schreier, and H. Tananbaum discover 4.8 second X-ray pulsations from Cen X-3,
1974 - Russell Hulse and Joseph Taylor discover the binary pulsar PSR1913+16,
1977 - Kip Thorne and Anna Zytkow present a detailed analysis of Thorne-Zytkow objects ,
1982 - Donald Backer , Shrinivas Kulkarni , Carl Heiles , Michael Davis , and Miller Goss discover the millisecond pulsar PSR1937+214,
1985 - Michiel van der Klis discovers 30 Hz quasi-periodic oscillations in GX 5-1,
1987 - Ian Shelton discovers Supernova 1987a in the Large Magellanic Cloud ...
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