Results 161 to 170 of about 5,465 (202)
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2004
Abstract An explosion eventually occurs in a highly evolved single star of sufficient mass or in a white dwarf that has accreted enough material from its companion in a binary system. Explosions give some individual stars optical luminosities that for a couple of months are more than a billion times that of the Sun.
T W Hartquist, J E Dyson, D P Ruffle
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Abstract An explosion eventually occurs in a highly evolved single star of sufficient mass or in a white dwarf that has accreted enough material from its companion in a binary system. Explosions give some individual stars optical luminosities that for a couple of months are more than a billion times that of the Sun.
T W Hartquist, J E Dyson, D P Ruffle
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Supernovae and Supernova Remnants
Annual Review of Astronomy and Astrophysics, 1988Kurt W. Weiler, Richard A. Sramek
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1988
Supernovas can be divided into two distinct classes on the basis of their spectra. Supernovae of type I (SNI) exhibit no hydrogen lines whereas those of type II (SNII) do show hydrogen lines in their spectra. Historically (Baade 1958) SNI have, with the usual perversity of astronomical nomenclature, been assigned to Population II and SNII to Population
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Supernovas can be divided into two distinct classes on the basis of their spectra. Supernovae of type I (SNI) exhibit no hydrogen lines whereas those of type II (SNII) do show hydrogen lines in their spectra. Historically (Baade 1958) SNI have, with the usual perversity of astronomical nomenclature, been assigned to Population II and SNII to Population
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Symposium - International Astronomical Union, 1967
The brightness distribution of the remnant of Tycho's Nova, which Baldwin has shown in Paper 56 (Figure 6), and the distance of 5000 pc determined by Menon and Williams (unpublished), establish beyond doubt a diameter of 10·8 pc and an average velocity of 13 300 km/sec. The initial velocity must have been higher.
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The brightness distribution of the remnant of Tycho's Nova, which Baldwin has shown in Paper 56 (Figure 6), and the distance of 5000 pc determined by Menon and Williams (unpublished), establish beyond doubt a diameter of 10·8 pc and an average velocity of 13 300 km/sec. The initial velocity must have been higher.
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Rectangular core-collapse supernova remnants: application to Puppis A
Monthly Notices of the Royal Astronomical Society, 2022D M-A Meyer, O Petruk, A Chiotellis
exaly
New ASKAP radio supernova remnants and candidates in the Large Magellanic Cloud
Monthly Notices of the Royal Astronomical Society, 2022M D Filipovic +2 more
exaly
Supernova Remnants: Supernova Remnants and Their X-Ray Emission.
Science, 1984openaire +2 more sources
1974
Supernovae of type II must be related to rather massive stars. They appear to occur rather exclusively in the spiral arms of galaxies and this fact alone sets a lower limit of about 5 M⊙ to their main sequence mass. If we believe that all massive stars above some critical value become supernovae (and none below this value) the supernova rate would ...
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Supernovae of type II must be related to rather massive stars. They appear to occur rather exclusively in the spiral arms of galaxies and this fact alone sets a lower limit of about 5 M⊙ to their main sequence mass. If we believe that all massive stars above some critical value become supernovae (and none below this value) the supernova rate would ...
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