Distribution of magnetic fields in the quiet-Sun internetwork areas has been affected by weak polarization (in particular Stokes Q and U) signals. To improve the signal-to-noise ratio (SNR) of the weak polarization signals, several approaches, including temporal integrations, have been proposed in the literature. In this study, we aim to investigate a proper temporal-integration time with which...

[1] For more than four decades, scientists have been trying to find an answer to one of the most fundamental questions in paleoclimatology, the “faint young Sun problem.” For the early Earth, models of stellar evolution predict a solar energy input to the climate system that is about 25% lower than today. This would result in a completely frozen world over the first 2 billion years in the histo...

Applying the phenomenon of neutrino lasing in the solar interior, we show how the rate for the generic neutrino decay process ν → fermion + boson, can in principal be enhanced by many orders of magnitude over its normal decay rate. Such a large enhancement could be of import to neutrino-decay models invoked in response to the apparent deficit of electron neutrinos observed from the sun. The sig...

We present numerical simulations of penetrative convection and gravity wave excitation in the Sun. Gravity waves are self-consistently generated by a convective zone overlying a radiative interior. We produce power spectra for gravity waves in the radiative region as well as estimates for the energy flux of gravity waves below the convection zone. We calculate a peak energy flux in waves below ...

We study the cosmological evolution of the closed universe on a spherical probe brane moving in the AdSm × S background and the near-horizon background of the dilatonic D-branes. The Friedmann equations describing the evolution of the brane universe, and the effective energy density and pressure simulated on the probe brane due to its motion in the curved background spacetime are obtained and a...

Junting Xi1 2, Qifeng Zhang1, Shuhong Xie3 4, Supan Yodyingyong1, Kwangsuk Park1, Yueming Sun2, Jiangyu Li3, and Guozhong Cao1 ∗ 1Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, USA 2School of Chemistry and Chemical Engineering, Southeast University, Jiangsu 211189, People’s Republic of China 3Department of Mechanical Engineering, University of Wash...

RÉSUMÉ. Les séries télévisées récentes multiplient les personnages principaux, développant ainsi des intrigues complexes présentées à travers plusieurs histoires entremêlées. Nous proposons une approche de détection automatique de ces histoires afin de générer un résumé vidéo par extraction de scènes représentatives de ces dernières, et nous présentons un outil de visualisation rapide des histo...