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Titlebook: Handbuch Fabrikprojektierung; Kurt W. Helbing Book 20182nd edition Springer-Verlag Berlin Heidelberg 2018 Einheit.Energie.Fertigung.Handel

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21#
發(fā)表于 2025-3-25 07:14:28 | 只看該作者
ouble broad line peaks, usually unequal in brightness, always one blueshifted and one redshifted relative to the systemic velocity. The problems with the former explanations of obscuration effects or variability are summarized and the case is made for there being . active objects in these galactic n
22#
發(fā)表于 2025-3-25 10:13:52 | 只看該作者
Kurt W. Helbingr (CGAS). The wavelengths observed covered the expected wavelengths of the Bry (n = 7 → 4), Brα (n = 5 → 4), and the Pfβ (n = 7 → 5) hydrogen recombination lines between 2.2 μm and 4.6 μm. The CGAS has a 32-element InSb array multiplexed by a Reticon and was used at a resolution of ~250 km s., allow
23#
發(fā)表于 2025-3-25 13:35:32 | 只看該作者
24#
發(fā)表于 2025-3-25 18:35:17 | 只看該作者
Kurt W. Helbingch we measure line strengths, line widths, and velocity profiles along the slit in the H., [N II], and [S II] emission lines. We show that these galaxies have strong nebular emission (and presumably star formation) extending over several hundred to more than a thousand parsecs from their centers. We
25#
發(fā)表于 2025-3-25 20:12:31 | 只看該作者
26#
發(fā)表于 2025-3-26 02:47:59 | 只看該作者
27#
發(fā)表于 2025-3-26 07:07:31 | 只看該作者
Kurt W. Helbing Hubble types and similar distributions in redshift space and Holmberg magnitude. Using an 800 × 800 TI 3PCCD we were able to cover the 4500–7500 ? spectral region at a resolution of 10 ?, the 2.5 arc-second by 4.0 arc-minute long slit allowed us to cover both nuclear, near-nuclear and far off-nucle
28#
發(fā)表于 2025-3-26 12:17:09 | 只看該作者
Kurt W. Helbing there is a preferred case B′ H./H. ratio of 3.1 for the NLR. All the reported scatter can be explained by known observational errors and contrary to some earlier claims, there is no evidence for intrinsic spread in the B′ H./H. ratio. This implies that the ionizing continua and NLR abundances in qu
29#
發(fā)表于 2025-3-26 15:30:23 | 只看該作者
30#
發(fā)表于 2025-3-26 18:01:27 | 只看該作者
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