| 词汇 | supernova |
| 释义 | supernova noun[ C ] uk /ˌsuː.pəˈnəʊ.və/ us /ˌsuː.pɚˈnoʊ.və/pluralsupernovaeuk /-viː/ussupernovas a star that has exploded, strongly increasing its brightness for a few months超新星（指因爆炸而数月内亮度大增的恒星） Science Photo Library - NASA/ESA/STSCI/J.HESTER & A.LOLL, ASU/Brand X Pictures/GettyImages Astronomy albedo Andromeda Aquarius Aries asteroid galactic galaxy Gemini geostationary geosynchronous nova observatory orbit orbital Orion suborbital substellar sunspot supergiant supermassive Examples of supernovasupernova They are created inside a star's core and are spread all over space during supernova explosions. We are also reminded that the waves are ripples in the fabric of space and time produced by violent energetic events such as exploding supernovae. These supernova explosions are a source of enrichment of the chemical composition of the interstellar medium. The shockwave formed by this sudden collapse causes the rest of the star to explode in a supernova. Experiments to produce a hydrodynamically unstable spherically diverging system of relevance to instabilities in supernovae. Possible radiation sources include flares from late-type parent stars, gamma-ray bursts, and gamma-ray lines from supernovae. Most cosmic rays will scatter and add a contribution comparable to the background from supernovae. They paid particular attention in the inner region to having an environment free of what they refer to as 'life-extinguishing ' supernovae. From supernova to consciousness: evolution of iron-binding compounds. Could a nearby supernova explosion have caused a mass extinction? Jets produced by these cones are used to study the physics of jets occurring in supernovae and in star-forming accretion disks. Moreover, the supernova irradiation would be spread out over a period of many months rather than seconds. This situation is expected within cloud fragments near a supernova. They are probably associated with some supernovae, producing narrow beams of radiation during gravitational collapse. Such elements are the product of nucleosynthesis triggered in the extreme physical conditions that occur in the supernova event itself. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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