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Category/Subcategory: Natural Sciences/Astronomy

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: 605

Running umbral/penumbral waves - The GREGOR Fabry-Perot Interferometer @ the 1.5m GREGOR Solar Telescope - First Halpha Spectra from 7 October 2013

Author: Klaus Gerhard Puschmann
Halpha Time series recorded with the GREGOR Fabry-Perot Interferometer @ the 1.5m GREGOR Solar Telescope on 7 October 2013. Left to right/top to bottom: Velocity @ 90% & 17% Line Depression (LD); Bisector Width @ 17%, 33%, 50% & ... more

Views: 997

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: 391

Can we deflect astroids?

Author: Euronews Knowledge
In the edition of Space, Euronews correspondent Jeremy Wilks reports from the Observatory of the Côte d'Azur in the south of France on a unique mission to deflect an asteroid. euronews knowledge brings you a fresh mix of the w ... more

Views: 178

IAC Investiga - Física Solar

Author: Solarnet - High Resolution Solar Physics Network
Video on Solar Physics at the IAC with English Subtitles El IAC cuenta sus líneas de investigación en cinco vídeos. "Física Solar" es el primero de los audiovisuales producidos por este centro astrofísico con financiación ... more

Views: 384

Magneto-acoustic wave propagation in the solar atmosphere: tilted magnetic field ($\theta=-30^°$)

Author: Christian Nutto
Evolution of the velocity perturbation scaled with the square root of the density, $\rho^{1/2}\delta |v|$, for the scenario of a tilted magnetic field with  $\theta= -30^°$. The horizontal line shows the equipartition level, w ... more

Views: 570

Simulation of a spherical magneto-acoustic wave propagating in the solar atmosphere: interaction with magnetic canopy, $\delta v$

Author: Christian Nutto
The spherical magneto-acoustic wave is excited right beneath the magnetic canopy. The color map shows the velocity perturbations $\delta |v|$. The green contours display the equipartition level, where $c_\mathrm{s} =c_\mathrm{A}$.

Views: 681

Destination Mars, episode 1: Searching for signs of life

Author: Euronews Knowledge
Made by euronews, the most watched news channel in Europe. euronews knowledge brings you a fresh mix of the world's most interesting know-hows, directly from space and sci-tech experts.

Views: 200

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: 499

Mopra_CMZ_12CO_13CO

Author: Rebecca Blackwell
Video of current Mopra 12CO and 13CO CMZ datacubes as shown at the UNSW December 2015 Mopra Workshop.

Views: 212