并入
发表于 2025-3-30 09:55:11
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exigent
发表于 2025-3-30 12:39:48
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dowagers-hump
发表于 2025-3-30 18:10:13
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nonsensical
发表于 2025-3-30 23:07:12
The Importance of Wide-System Studies for Stellar Evolution and Galactic Dynamics,e visual pairs (short periods) may lead to mass-determinations in a relatively short time interval. But mass-determination should not be considered as the only interest of double star astronomy, even if it is of a fundamental nature..Today, it appears that researches on the origin and the evolution
吝啬性
发表于 2025-3-31 01:50:55
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Inflated
发表于 2025-3-31 07:27:27
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Resistance
发表于 2025-3-31 11:36:11
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Bph773
发表于 2025-3-31 14:42:41
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Axillary
发表于 2025-3-31 21:27:36
Symbiotic Stars, available on the spectral variations at optical wavelengths these stars undergo. I do not give extensive references to those data, for previous reviews have done so quite adequately. Rather, I concentrate on the extensive widening of the wavebands within which symbiotic stars have been studied over
Condescending
发表于 2025-3-31 22:27:59
,Radial Velocity and Profile Variations of the Ultraviolet Circumstellar Lines in ζ Tauri,l atoms, and once or twice-ionized ions (except CII, Al III, Si III resonance lines) follow the same velocity variations as in the visual spectra, while the Si IV and C IV resonance lines show a constant negative velocity (∼ —50 km s. at the core). The Al III, C II resonance lines and probably Fe II