Absorption and polarization spectra of polynuclear p-quinones

1974 ◽  
Vol 39 (6) ◽  
pp. 1532-1540 ◽  
Author(s):  
A. Novák ◽  
M. Titz ◽  
M. Nepraš
Keyword(s):  
Polarization Spectra

Polarization spectra of homogeneously and inhomogeneously broadened two-level systems

1990 ◽  
Vol 7 (11) ◽  
pp. 2145 ◽  
Author(s):  
A. Marcano O. ◽  
L. Marquez ◽  
L. Aranguren ◽  
M. Salazar
Keyword(s):  
Two Level Systems ◽  
Polarization Spectra

scholarly journals AGN polarization modeling with Stokes

2006 ◽  
Vol 2 (S238) ◽  
pp. 375-376 ◽  
Author(s):  
René W. Goosmann ◽  
C. Martin Gaskell ◽  
Masatoshi Shoji
Keyword(s):  
Monte Carlo ◽  
Radiative Transfer ◽  
Active Galactic Nuclei ◽  
Galactic Nuclei ◽  
Dust Grains ◽  
Free Electrons ◽  
Wide Range ◽  
Polarization Spectra

AbstractWe introduce a new, publicly available Monte Carlo radiative transfer code, Stokes, which has been developed to model polarization induced by scattering of free electrons and dust grains. It can be used in a wide range of astrophysical applications. Here, we apply it to model the polarization produced by the equatorial obscuring and scattering tori assumed to exist in active galactic nuclei (AGNs). We present optical/UV modeling of dusty tori with a curved inner shape and for two different dust types. The polarization spectra enable us to clearly distinguish between the two dust compositions. The Stokes code and its documentation can be freely downloaded from http://www.stokes-program.info/.

Sub-Doppler polarization spectra of He, N2 and Ar+ recorded in discharges

1990 ◽  
Vol 166 (5-6) ◽  
pp. 551-559 ◽  
Author(s):  
Ch. Hertzler ◽  
H.-J. Foth
Keyword(s):  
Polarization Spectra

scholarly journals A Determination of Magnetic Fields of T Tau and Ae/Be Herbig Stars Using the Parameters of Their Linear Polarization

1986 ◽  
Vol 90 ◽  
pp. 87-90
Author(s):  
Yu.N. Gnedin ◽  
M.A. Pogodin ◽  
N.P. Red’kina
Keyword(s):  
Magnetic Fields ◽  
Linear Polarization ◽  
Polarization Spectra ◽  
T Tau

AbstractAttempts of applying stellar polarization spectra to evaluation of magnetic fields of some types of stars are described.

scholarly journals The evidence for a spatially flat Universe

2020 ◽  
Vol 496 (1) ◽  
pp. L91-L95 ◽  
Author(s):  
George Efstathiou ◽  
Steven Gratton
Keyword(s):  
High Precision ◽  
Strong Support ◽  
Inflationary Cosmology ◽  
Density Parameter ◽  
Acoustic Oscillations ◽  
Astrophysical Data ◽  
Flat Universe ◽  
Polarization Spectra ◽  
The Universe ◽  
Good Agreement

ABSTRACT We use a new and statistically powerful Planck likelihood to show that the Planck temperature and polarization spectra are consistent with a spatially flat Universe, in contrast to recent claims in the literature. When combined with other astrophysical data, particularly geometrical measurements of baryon acoustic oscillations, our likelihood constrains the Universe to be spatially flat to extremely high precision. We deduce a curvature density parameter ΩK = 0.0004 ± 0.0018 in good agreement with the 2018 results of the Planck team. In the context of inflationary cosmology, the observations offer strong support for models of inflation with a large number of e-foldings and disfavour models of incomplete inflation.

Probe-intensity dependence of velocity-selective polarization spectra at the rubidiumD2manifold and comparison with a rate-equation calculation

2014 ◽  
Vol 89 (4) ◽  
Author(s):  
J. Flores-Mijangos ◽  
F. Ramírez-Martínez ◽  
R. Colín-Rodríguez ◽  
A. Hernández-Hernández ◽  
J. Jiménez-Mier
Keyword(s):  
Rate Equation ◽  
Probe Intensity ◽  
Intensity Dependence ◽  
Polarization Spectra
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