Confidential
发表于 2025-3-23 09:50:19
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Rejuvenate
发表于 2025-3-23 16:02:33
1431-9756 stellar spectra will find this is the only book written specially for him. And of course, "armchair astronomers" who simply want to understand the physical processes which shape lines in stellar spectra will fi978-0-387-36786-6978-0-387-68288-4Series ISSN 1431-9756 Series E-ISSN 2197-6562
争吵加
发表于 2025-3-23 21:48:03
phase space). In this case all data obtained must be ‘sorted‘ in subsamples generated by different probabilistic mechanisms. Only after such classification we can make correct inferences about all DGPs. There exists yet another type of problem for complex systems. Here it is important to detect poss
转换
发表于 2025-3-23 22:26:50
,Spectroscopy—A New Golden Age for Amateur Astronomy,nowledge that mankind would never possess. This is the kind of (well known) story that is guaranteed to make every scientist—astronomer or otherwise—smile. By the 1860s Father Angelo Secchi was classifying stars according to their spectra and astronomical spectroscopy was born.
自负的人
发表于 2025-3-24 03:06:36
,Glowing Vortices—Accretion Disks, not quite so well known is that the hot gases which make up an accretion disk can produce emission lines of hydrogen and what’s more these emission lines can have very striking profile shapes. They are in fact often double-peaked with what’s called a central reversal in between; they also have broad extensive wings.
带伤害
发表于 2025-3-24 07:54:36
,‘How Much Gold in Them There Stars?’—The Curve of Growth,ed to determine . of each element is present. The actual amount of a given element which is present in the atmosphere of a star or indeed throughout the Universe as a whole is called its ., so let’s first see how the abundance of an element is quantified.
过分
发表于 2025-3-24 11:00:10
,Spectroscopy—A New Golden Age for Amateur Astronomy,itable’ coincidence, it was in the following year that the French philosopher August Comte pronounced that the chemical composition of the stars was knowledge that mankind would never possess. This is the kind of (well known) story that is guaranteed to make every scientist—astronomer or otherwise—s
尽管
发表于 2025-3-24 16:05:34
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monologue
发表于 2025-3-24 20:10:06
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绝食
发表于 2025-3-25 00:09:19
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