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Category/Subcategory: Natural Sciences/Astronomy

Promotional Video about the EST project

Author: Solarnet - High Resolution Solar Physics Network
The European Solar Telescope (EST) is of major interest for all the European Solar Community, since it will help to maintain Europe on the top of science, Solar Physics, and technology. The EST design study was funded by the Eu ... more

Views: 394

Magneto-acoustic wave propagation in a magnetic flux sheet (strong field)

Author: Vigeesh Gangadharan
Temperature perturbations in a magnetic flux sheet (strong field) due to waves excited by a horizontal motion at the bottom boundary. The excitation generates fast magneto-acoustic wave (predominantly magnetic) along with slow mag ... more

Views: 517
Views: 288

Polarized radiation shows signature of magneto-acoustic wave propagation (moderate field)

Author: Vigeesh Gangadharan
Variation of Stokes-V profiles of Fe I (5250.2 Å and 6302.5 Å) emerging from a small region on either side of the magnetic flux sheet (moderate field strength) as a result of wave propagation within the line-of-sight. The emerge ... more

Views: 355

HMI Context-Information

Author: Klaus Gerhard Puschmann
Upper panels from left to right: unsigned magnetic field strength; magnetic field inclination; magnetic Line-of-Sight velocity; magnetic field azimuth. Lower panels from left to right: Intensity; magnetic field polarity; Line-of-S ... more

Views: 626

Exploding granule time evolution

Author: Catherine Fischer
Movie attached to Figure 4 of "Chromospheric impact of an exploding solar granule" by Catherine E. Fischer, Nazaret Bello González, and Reza Rezaei

Views: 76

Spicules and their on-disk counterparts - The main driver for solar chromospheric heating? - The GREGOR Fabry-Perot Interferometer @ VTT

Author: Klaus Gerhard Puschmann
Time series VI (14 min). Left panel - reconstructed white-light intensity-maps @ 656nm. Right panel - Hα Line Wing intensities. Remarkable feature - interaction of small-scale quiet-sun magnetic field at solar disk center, driven ... more

Views: 610

The GREGOR Solar Telescope

Author: Solarnet - High Resolution Solar Physics Network
Promotional video produced by the Instituto de Astrofíscia de Canarias on Tenerife about the new German solar telescope GREGOR.

Views: 480

Tornadoes in the solar atmosphere: Velocity streamlines

Author: Christian Nutto
The sequence shows the evolution of dynamic structures resembling tornadoes in the solar atmosphere. The red lines represent stream lines of the velocity field in the solar atmosphere. The contour shows the dynamic evolution of th ... more

Views: 621

Magneto-acoustic wave propagation in a magnetic flux sheet (moderate field)

Author: Vigeesh Gangadharan
Temperature perturbations in a magnetic flux sheet (moderate field strength) due to waves excited by a horizontal motion at the bottom boundary. The waves higher up are predominantly acoustic (slow magneto-acoustic) that propagat ... more

Views: 376