搜索结果: 106-120 共查到“理学 THE LINE”相关记录374条 . 查询时间(0.135 秒)
Rigidity and absence of line fields for meromorphic and Ahlfors islands maps
Holomorphic dynamics Rigidity Meromorphic functions
2011/2/25
In this note, we give an elementary proof of the absence of invariant line fields on the conical Julia set of an analytic function of one variable. This proof applies not only to rational as well as t...
Explicit formula for the solution of the Szegö equation on the real line and applications
Szeg¨o equation integrable systems Lax pair Hankel operators soliton resolution
2011/1/21
We consider the cubic Szeg¨o equation i@tu = (|u|2u) in the Hardy space L2 +(R) on the upper half-plane, where is the Szeg¨o projector.
The Hirota τ-function and well-posedness of the KdV equation with an arbitrary step like initial profile decaying on the right half line
Korteweg-de Vries equation inverse scattering transform Schr ¨odinger operator
2011/3/1
We are concerned with the Cauchy problem for the KdV equation on the whole line with an initial profile V0 which is decaying sufficiently fast at +¥ and arbitrarily enough (i.e., no decay or patte...
H$\beta$ Line Widths as an Orientation Indicator for Low-Ionization Broad Absorption Line Quasars
Orientation Indicator Low-Ionization Absorption Line Quasars
2011/1/11
There is evidence from radio-loud quasars to suggest that the distribution of the H$\beta$ broad emission line (BEL) gas is arranged in a predominantly planar orientation, and this result may well als...
Fusion of line operators in conformal sigma-models on supergroups, and the Hirota equation
line operators conformal sigma-models supergroups
2010/12/23
We study line operators in the two-dimensional sigma-model on PSl(n|n) using the current-current OPEs. We regularize and renormalize these line operators, and compute their fusion up to second order ...
The Transition from "Normal" to "Broad Absorption Line Quasar" of Ton 34
Normal Broad Absorption Line Quasar
2011/1/10
We report the emergence of a high velocity, broad absorption line outflow in the luminous quasar Ton 34, at z=1.928. The outflow is detected through an ultraviolet CIV broad absorption line, in a spec...
The Difference in Narrow Fe KαLine Emission Between Seyfert 1 and Seyfert 2 Galaxies
Narrow Fe KαLine Emission Seyfert 1 Seyfert 2 Galaxies
2011/1/10
We compile a sample of 89 Seyfert galaxies with both [OIV] 25.89 um line luminosities observed by Spitzer IRS and X-ray spectra observed by XMM EPIC. Using [OIV] emission as proxy of AGN intrinsic lum...
The origin of the Broad Line Region in Active Galactic Nuclei
the Broad Line Active Galactic Nuclei
2011/1/13
Although broad emission lines are the most reliable signature of the nuclear activity of a galaxy and the location of the emitting material is well measured by the reverberation method, the physical ...
Orientation effects in quasar spectra: The broad- and narrow-line regions
Orientation effects quasar spectra
2011/1/11
We use the SDSS, along with the NVSS and the WENSS to define a sample of 746 radio-loud quasars and measure their 330MHz to 1.4GHz spectral indexes. Following previous authors we take the spectral ind...
Curvature of the QCD phase transition line in a finite volume
the QCD phase transition line finite volume
2011/1/7
The curvature which characterizes the QCD phase transition at finite temperature and small values of the chemical potential is accessible to lattice simulations. The results for this quantity which ha...
The Compton shoulder of the Fe Kalpha fluorescent emission line in active galactic nuclei
The Compton shoulder the Fe Kalpha fluorescent emission line
2011/1/11
We present new, high signal-to-noise ratio results from a Monte Carlo study of the properties of the Compton shoulder of the Fe Kalpha emission line in the toroidal X-ray reprocessor model of Murphy &...
An iterative method in a probabilistic approach to the spectral inverse problem: Differential emission measure from line spectra and broadband data
the spectral inverse problem Differential emission measure
2011/1/11
Inverse problems are of great importance in astrophysics for deriving information about the physical characteristics of hot optically thin plasma sources from their EUV and X-ray spectra. We describe ...
Quantitative Isoperimetric Inequalities on the Real Line
Quantitative Isoperimetric Inequalities the Real Line
2010/11/23
In a recent paper A. Cianchi, N. Fusco, F. Maggi, and A. Pratelli have shown that, in the Gauss space, a set of given measure and almost minimal Gauss boundary measure is necessarily close to be a hal...
Redshift-Space Enhancement of Line-of-Sight Baryon Acoustic Oscillations in the SDSS Main-Galaxy Sample
cosmology large-scale structure of Universe - methods data analysis
2010/11/15
We show that redshift-space distortions of galaxy correlations have a strong e ect on correlation functions with distinct, localized features, like the signature of the Baryon Acoustic Oscillations (B...
Measurements of nuclear $\gamma$-ray line emission in interactions of protons and $\alpha$ particles with N, O, Ne and Si
Measurements of nuclear $\gamma$-ray line emission interactions of protons $\alpha$ particles with N, O, Ne and Si
2011/1/4
$\gamma$-ray production cross sections have been measured in proton irradiations of N, Ne and Si and $\alpha$-particle irradiations of N and Ne. In the same experiment we extracted also line shapes fo...