The ScienceMedia Network
From scientists for scientists! - Now at your service.

Category/Subcategory: Natural Sciences/Astronomy

Si I 1082.7 nm line as a probe of photospheric magnetic fields

Author: Nataliia Shchukina
Scientific interest for the spectral region around 1083 nm is growing over the last years following advances in theory as well as in IR instrumentation. Such facilities require further development of diagnostic tools.The aim of ou ... more

Views: 1

The low wave number amplitudes of the solar convective spectrum: why supergranulation

Author: Mark Rast
Discussion of the solar convective conundrum, why low wavenumber convective motions in both local area and global models of solar convection have much larger amplitudes than those inferred from observations, and its connection wit ... more

Views: 103

Simulation of a Double/Triple-Fabry-Pérot-Spectropolarimeter for the new solar telescope DKIST

Author: Matthias Johannes Schubert
Context: Our Sun is an unique high-energy plasma physics laboratory, which can be studied with exceptional spatial and temporal resolution. Using dedicated telescopes, it is possible to verify and enhance our knowledge about a ... more

Views: 338

Physical properties of a group of pores as derived from Ca II 8542 Å observations and inversions at GREGOR

Author: Christoph Kuckein
The GREGOR Fabry-Perot Interferometer (GFPI) is installed at the 1.5-meter GREGOR telescope on Tenerife, Spain. The coatings of the etalons of the GFPI have a high reflectivity in the wavelength range between 530-860 nm. Therefore ... more

Views: 187

Large-Scale Subsurface Flows during Solar Cycle 23 and 24

Author: Rudolf Komm
We study the solar-cycle variation of the zonal and meridional flow in the near-surface layers of the solar convection zone from the surface to a depth of about 16 Mm. We have analyzed Dopplergrams obtained with the Michelson Dop ... more

Views: 313

{A comparison of solar image restoration techniques for SST/CRISP data

Author: Mats Löfdahl
Solar images from high-resolution, ground-based telescopes are corrected for the blurring effects of atmospheric turbulence by adaptive optics and image restoration. Two classes of image restoration methods are regularly used t ... more

Views: 293

Asteroseismology of Exoplanet-Host Stars with TESS

Author: Tiago Campante
New insights on stellar evolution and stellar interiors physics are being made possible by asteroseismology. Throughout the course of the Kepler mission, asteroseismology has also played an important role in the characterization o ... more

Views: 192

Observation and Modeling of Flare-productive Active Regions of the Sun

Author: Shin Toriumi
Solar flares and coronal mass ejections (CMEs) are the catastrophic releasing of magnetic energy and helicity. It is known that strong eruptions take place in complex active regions (ARs). We surveyed all ARs that produced >M5.0- ... more

Views: 49