Results 31 to 40 of about 218,608 (214)
Graphite and Interstellar Extinction [PDF]
The Theory That Graphite Particles could be responsible for interstellar extinction is presented in references 1 and 2, and this paper will present evidence that further supports this contention. The complex dielectric constant (m = n(l — ik) for graphite has been measured as a function of energy by the authors of reference 3, and the optical constants
T. P. Stecher, Bertram Donn
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Interstellar Silicon Depletion and the Ultraviolet Extinction [PDF]
Spinning small silicate grains were recently invoked to account for the Galactic foreground anomalous microwave emission. These grains, if present, will absorb starlight in the far ultraviolet (UV).
Mishra, Ajay +3 more
core +3 more sources
Interstellar extinction from photometric surveys: application to four high-latitude areas
Information on interstellar extinction and dust properties may be obtained from modern large photometric surveys data. Virtual Observatory facilities allow users to make a fast and correct cross-identification of objects from various surveys. It yields a
Malkov Oleg +13 more
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Unified model for interstellar extinction and polarization [PDF]
The development of improved techniques for measuring interstellar extinction and polarization has led to a revival of interest in the investigation of grain models.
Krishna Swamy, K. S. +1 more
core +1 more source
Time-series surveys and pulsating stars: The near-infrared perspective
The purpose of this review is to discuss the advantages and problems of nearinfrared surveys in observing pulsating stars in the Milky Way. One of the advantages of near-infrared surveys, when compared to optical counterparts, is that the interstellar ...
Matsunaga Noriyuki
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Interstellar extinction by quartz grains [PDF]
Knacke has pointed out that quartz particles possess strong absorption bands at λ ~ 10μ. Although these features occur in the spectral region 3-10μ, where Johnson has found humps in interstellar extinction curves, by itself
Krishna Swamy, K. S. +1 more
core +1 more source
The computation of interstellar extinction in photoionized nebulae
Context. The proper plasma analysis practice (PPAP) method has been proposed to analyze spectroscopic data of ionized nebulae. The method is based on a coherent and simultaneous determination of the reddening correction and physical conditions in nebulae.
Christophe Morisset +7 more
openaire +2 more sources
DIBs, interstellar dust, and extinction [PDF]
The relationship between DIBs and dust is still unknown. The correlation between reddening and DIB strength means that the DIBs are mixed in with the dust and gas in interstellar clouds. The DIBs are relatively stronger in the diffuse interstellar medium
Clayton, G. C.
core +1 more source
Structure in the Interstellar-Extinction Curve
Using photographic techniques, it was attempted to obtain spectra of the interstellar material at a resolution of about 5 A. Three classes of structures are discussed. It is pointed out that the optical observations can be extended into the UV with a resolution of 0.4 A using the OAO-C telescope.
openaire +2 more sources
The nature of interstellar dust as revealed by light scattering
Interstellar dust was first identified through the extinction that it causes of optical starlight. Initially, observational and theoretical studies of extinction were made to identify simple ways of removing the effect of extinction.
D. A. Williams
doaj +1 more source

