时间等
发表于 2025-3-26 23:27:44
Conference proceedings 1988tellar radiative spectrum is almost entirely fixed by the mass, luminosity, radius and surface rotation of the star, and contains essentially no other information about the interior. An important test of stellar evolution theory is provided by observations of stel lar clusters, whose members can re
CROW
发表于 2025-3-27 01:40:27
The Basic Questions on Danxia Landform that this may provide a useful background for the more specialized reviews, and the contributed papers, in these proceedings. Other recent, general reviews are, e.g., Deubner & Gough (1984), Leibacher et al (1985), and Christensen-Dalsgaard et al (1985a).
PLAYS
发表于 2025-3-27 08:22:07
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nephritis
发表于 2025-3-27 09:29:03
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致敬
发表于 2025-3-27 15:21:48
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ornithology
发表于 2025-3-27 19:25:08
https://doi.org/10.1007/978-981-13-5959-0y, we have analyzed a 10-day time series of full-disk Dopplergrams obtained during July and August 1984 at the 60- Foot Tower Telescope of the Mt. Wilson Observatory. The Dopplergrams were obtained with a Na magneto-optical filter and a 244 x 248-pixel CID camera. From the time series we computed po
不开心
发表于 2025-3-28 00:37:05
The Basic Questions on Danxia Landformoscillations. An optimal averaging inversion procedure due to Backus & Gilbert (1970) has been applied to frequency splittings measured from power spectra obtained using Doppler data spanning three and five consecutive days. The resulting rotation curves have proven to be much more stable than the c
temperate
发表于 2025-3-28 02:25:25
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档案
发表于 2025-3-28 09:25:39
https://doi.org/10.1007/978-981-13-5959-0ite. Due to the differing abundances of ground state atoms of these two elements different depths of the photosphere are sampled. An intercomparison of solar p modes obtained with these spectrometers is given.
Indolent
发表于 2025-3-28 10:33:49
https://doi.org/10.1007/978-981-13-5959-0ull Sun taken on two sides of the Fe I λ 5576 spectral line were recorded on film, digitized with 8" spatial resolution, and then converted into Doppler velocities. The data were projected onto both equatorial and polar sectoral modes and Fourier transformed in time. Comparing the resulting power sp