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1987
Matter is present in the Galaxy not only in the form of stars. Characteristic absorption lines in all wavelength ranges reveal the presence of gas scattered throughout space between stars. In addition to the gas, Trumpler has shown that in the galactic disk, dust produces a dimming of the light coming from distant stars, and modifies the energy ...
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Matter is present in the Galaxy not only in the form of stars. Characteristic absorption lines in all wavelength ranges reveal the presence of gas scattered throughout space between stars. In addition to the gas, Trumpler has shown that in the galactic disk, dust produces a dimming of the light coming from distant stars, and modifies the energy ...
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Interstellar Extinction and Polarisation
1991In Chapter 1 we referred briefly to the early measurements of interstellar extinction over the UBV wavelength range that gave an approximately 1/λ extinction coefficient amounting typically to ~ 1–2 mag/kpc. We now discuss both extinction and polarisation observations in more detail with a view to using this data as discriminants for grain models in ...
F. Hoyle, N. C. Wickramasinghe
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1969
Many observations became understandable only when astronomers realized that there are huge clouds of gas and dust in interstellar space, by which the light of far-off stars is dimmed and reddened. In order to reduce our observations for this effect, we have to find how this extinction depends on wavelength; our results will also help to understand the ...
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Many observations became understandable only when astronomers realized that there are huge clouds of gas and dust in interstellar space, by which the light of far-off stars is dimmed and reddened. In order to reduce our observations for this effect, we have to find how this extinction depends on wavelength; our results will also help to understand the ...
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1987
Many observations became understandable only when astronomers realized that there are huge clouds of gas and dust in interstellar space, by which the light of far-off stars is dimmed and reddened. In order to reduce our observations for this effect, we have to find how this extinction depends on wavelength; our results will also help to understand the ...
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Many observations became understandable only when astronomers realized that there are huge clouds of gas and dust in interstellar space, by which the light of far-off stars is dimmed and reddened. In order to reduce our observations for this effect, we have to find how this extinction depends on wavelength; our results will also help to understand the ...
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Interstellar Extinction and Diffuse Absorption Features
Astrophysics and Space Science, 1975The equivalent width of the λ 2175 A band, W 2175, well known as the big bump in the interstellar extinction curves, has been found to be closely correlated with the colour excess E B-V as well as with the extinction differences E 8−6 and E 8−6 defined to characterize quantitatively the steep slopes of the extinction curves in the far ultraviolet.
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Features of the interstellar extinction curve
Astrophysics and Space Science, 1975The extinction curves for spherical particles are subject to the errors of the particle material’s refractive index. Their sensitivity to these errors has been investigated and is found to be dependent upon wavelength. For graphite, significant errors are produced in the far ultraviolet part of the extinction curve; for silicates, in the near ...
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Interstellar Extinction by Quartz Grains
Nature, 1968Interstellar extinction cross sections calculated for quartz particles, results indicate quartz is not appreciable component of interstellar ...
K. S. KRISHNA SWAMY +1 more
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Fullerenes and interstellar extinction
SCIENTIA SINICA Physica, Mechanica & Astronomica, 2022XueLian SU +4 more
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Extinction by Interstellar Silica Grains
Nature, 1968INTEREST has recently been expressed in the possibility that the interstellar dust contains a silica component (ref. 1, and R. C. Gilman, private communication). The purpose of this communication is to point out that silicon dioxide has strong absorptions in the 8–14µ atmospheric “window” which should be observable with ground-based infrared telescopes.
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment
Ca-A Cancer Journal for Clinicians, 2022Jun J Mao,, Msce +2 more
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