无法治愈
发表于 2025-3-23 12:43:10
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Alienated
发表于 2025-3-23 16:13:13
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deface
发表于 2025-3-23 18:18:26
Supernovae and Pulsarstific career. His own contributions to that history include supernova explosions in close binary systems as an origin for runaway OB stars (most pulsars are also high-velocity objects), and studies of expanding stellar associations that have prompted explanations in terms of supernovae. Of the more
misshapen
发表于 2025-3-24 00:15:57
The Identification of Massive Supernova Progenitorsir rate of occurrence and theoretical considerations on stellar evolution (the latter only for type II supernovae). The pre-explosion masses are derived from the lightcurves (types II and V) and from the absolute magnitude before the explosion (only for type V’s). We find mass ranges of 6 to 16 M.,
独白
发表于 2025-3-24 04:26:30
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Conscientious
发表于 2025-3-24 10:35:05
Vereinigung, Zersetzung, Umsetzung,s that of a young cluster containing stars of ages up to that of an average giant molecular cloud, a few 10. years. A few stars in the solar neighborhood may be low-mass, still pre-main-sequence, products of recently dissipated clouds.
nitric-oxide
发表于 2025-3-24 12:41:19
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Presbyopia
发表于 2025-3-24 15:28:32
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骂人有污点
发表于 2025-3-24 22:58:24
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或者发神韵
发表于 2025-3-25 03:13:29
The Nearest Molecular Cloudsand are the small molecular-cloud component of the interstellar medium. The large internal velocity dispersions indicate that the clouds are not gravitationally bound, and that they have ages of ~ 10. yr.