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An asteroseismic membership study of the red giants in three open clusters observed by Kepler: NGC6791, NGC6819, and NGC6811
asteroseismic membership study red giants clusters observed Kepler
2011/9/29
Studying star clusters offers significant advances in stellar astrophysics due to the combined power of having many stars with essentially the same distance, age, and initial composition. This makes c...
Oscillatory motions observed in eruptive filaments
Sun: fi laments prominences – Sun:oscillations – Sun:atmosphere.
2011/9/27
Context: The origin of the variable component of the solar wind is of great intrinsic interest for heliophysics and space-weather, e.g. the initiation of coronal mass ejections, and the problem of mas...
Nonparametric model reconstruction for stochastic differential equation from discretely observed time-series data
Nonparametric model reconstruction stochastic differential equation discretely observed time-series data
2011/8/2
Abstract: We develop a scheme for estimating state-dependent drift and diffusion coefficients in a stochastic differential equation from a time-series data. There is no need to have any prior knowledg...
Amplitudes of solar-like oscillations: constraints from red giants in open clusters observed by Kepler
Amplitudes solar-like oscillations: constraints clusters observed Kepler
2011/9/27
Scaling relations that link asteroseismic quantities to global stellar properties are important for gaining understanding of the intricate physics that underpins stellar pulsation. The common notion t...
Explaining the observed long coherence effects by 2D photon echo experiments in photosynthetic EET : Two-Component Phonon Spectrum model
2-D photon echo spectroscopy Quantum masterequations polaron transformation Dynamical disorder Novikov theorem
2011/9/8
We propose a simple stochastic model which successfully explains the long coherence effects observed in photosynthetic Excitation Energy Transport (EET) by 2D photon echo experiments of G. S. Engel et...
Understanding how far information, behaviors, or pathogens spread in social networks is an important problem, having implications for both predicting the size of epidemics, as well as for planning e e...
Inhibited spontaneous emission of quantum dots observed in a 3D photonic band gap
3D photonic band gap spontaneous emission
2011/8/31
We present time-resolved emission experiments of semiconductor quantum dots in silicon 3D inverse-woodpile photonic band gap crystals. A systematic study is made of crystals with a range of pore radii...
Possible mechanism responsible for observed impurity outward flow under radio frequency heating
Possible mechanism radio frequency heating
2011/8/26
The effect of poloidal asymmetry of impurities on impurity transport driven by electrostatic turbulence in tokamak plasmas is analyzed. It is found that in
the presence of in-out asymmetric impurity ...
Measurement of the neutrino component of an anti-neutrino beam observed by a non-magnetized detector
Measurement the neutrino component an anti-neutrino beam observed a non-magnetized detector
2011/4/6
Measurement of the neutrino component of an anti-neutrino beam observed by a non-magnetized detector 。
Solar irradiance at the earth's surface: long-term behavior observed at the South Pole
the earth's surface long-term behavior the South Pole
2011/2/25
This research examines a 17-year database of UV-A (320–400 nm) and visible (400–600 nm) solar irradiance obtained by a scanning spectroradiometer located at the South Pole. The goal is to define the v...
Attribution of observed changes in stratospheric ozone and temperature
observed changes stratospheric ozone temperature
2011/2/24
Three recently-completed sets of simulations of multiple chemistry-climate models with greenhouse gases only, with all anthropogenic forcings, and with anthropogenic and natural forcings, allow the ca...
Characterization of non-methane hydrocarbons in Asian summer monsoon outflow observed by the CARIBIC aircraft
non-methane hydrocarbons Asian summer monsoon the CARIBIC aircraft
2011/1/20
Between April and December 2008 the CARIBIC commercial aircraft conducted monthly measurement flights between Frankfurt, Germany and Chennai, India. These flights covered the period of the Asian summe...
Assessing observed and modelled spatial distributions of ice water path using satellite data
observed and modelled spatial ice water path satellite data
2011/1/19
The climate models used in the IPCC AR4 show large differences in monthly mean ice water path (IWP). The most valuable source of information that can be used to potentially constrain the models is glo...
Seasonal variability of aerosol optical properties observed by means of a Raman lidar at an EARLINET site over Northeastern Spain
aerosol optical properties a Raman lidar an EARLINET site Northeastern Spain
2011/1/19
The annual and seasonal variability of aerosol optical properties observed by means of a Raman lidar over Northeastern Spain has been assessed. The lidar representativeness has first been checked agai...
Wintertime pollution over the Eastern Indo-Gangetic Plains as observed from MOPITT, CALIPSO and tropospheric ozone residual data
Wintertime pollution the Eastern Indo-Gangetic Plains tropospheric ozone residual data
2010/12/28
A large wintertime increase in pollutants has been observed over the eastern parts of the Indo Gangetic Plains. We use improved version 4 carbon monoxide (CO) retrievals from the Measurements of Pollu...