aptitude
发表于 2025-3-26 20:58:08
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BAIL
发表于 2025-3-27 03:26:12
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鸵鸟
发表于 2025-3-27 07:57:10
Supernova of AD 1181 and its Remnant: 3C 58 five over the last 1000 years. One of the more mysterious events happened back in AD 1181 and was discovered by Chinese and Japanese astronomers as a “guest star” in the constellation Cassiopeia. Today this guest star is known to us as supernova SN 1181. This historical supernova explosion most lik
Cuisine
发表于 2025-3-27 10:31:30
Supernova of 1572, Tycho’s Supernovats of the Galaxy. From early radio observations in the 1950s to recent high-energy gamma-ray observations, Tycho has been observed over the full energy domain, telling us the story of its evolution. From gas heated to tens million degrees to dust heating, particles accelerated to multi tera electron
有权威
发表于 2025-3-27 15:56:53
Supernova 1604, Kepler’s Supernova, and its Remnant account of the observations made by himself and European colleagues. Supernova 1604 was very likely a type Ia supernova, which exploded 350–750 pc above the galactic plane. Its supernova remnant, known as Kepler’s supernova remnant, shows clear evidence for interaction with nitrogen-rich material i
柔美流畅
发表于 2025-3-27 21:16:25
Supernova Remnant Cassiopeia AD 1681 ± 19. The light ‘echo’ scattered from the flash of the SN explosion has been detected after ∼ 330 years (i.e., 2008), which confirmed that Cas A is a remnant of Type IIb SN, which probably resulted from the explosion of a massive (.) star. It is also relatively nearby, that is, at 3.4 kpc. Ca
Myocyte
发表于 2025-3-27 23:27:09
Possible and Suggested Historical Supernovae in the Galaxy these stars – those first seen in the years AD 1006, 1054, 1181, 1572 and 1604 – remained visible for at least 6 months. These were recorded in detail in a variety of historical sources. All are well-established supernovae and their remnants have been confidently identified. Many further new stars
recession
发表于 2025-3-28 04:56:16
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荨麻
发表于 2025-3-28 07:22:06
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无效
发表于 2025-3-28 11:15:10
Hydrogen-Poor Core-Collapse Supernovaernovae, i.e., approximately in the range 15–50 M. in main sequence. Since hydrogen-poor core-collapse supernovae include those that accompany gamma-ray bursts (GRBs), which were all rigorously identified with type Ic supernovae, their explosion energies cover almost two decades. The light curves and