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Category/Subcategory: Natural Sciences/Astronomy

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: 844

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

Author: Klaus Gerhard Puschmann
Example of a typical Hα Line Scan of solar off-limb spicules (in emission) and on-disk counterparts (in absorption) performed on 4 May 2005 with the GREGOR Fabry-Perot Interferometer (GFPI, Puschmann et al. 2006, A&A 451, 1151) d ... more

Views: 1269

Voyaging back into space at 60: Paolo Nespoli

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: 541
Views: 655

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: 1007

Magneto-acoustic wave propagation in the solar atmosphere: vertical magnetic field ($\theta=-30^°$), disturbance $\delta B$

Author: Christian Nutto
Magnetic field perturbations, $\delta B/B_0$, for di fferent time steps and for the scenario of a vertical magnetic fi eld. The magneto-acoustic wave propagates from the source (piston) located at (x; z) = (1000;-750) km. The hori ... more

Views: 1159

High Cadence Observations of the Solar Flares in the H-alpha Line

Author: Krzysztof Radziszewski
1st movie for EST 2018 conference's presentation ("High Cadence Observations of the Solar Flares in the H-alpha Line" by Krzysztof Radziszewski and Pawel Rudawy)

Views: 156

Magneto-acoustic wave propagation in the solar atmosphere: vertical magnetic field ($\theta=30^°$), disturbance $\delta B$

Author: Christian Nutto
Magnetic field perturbations, $\delta B/B_0$, for di fferent time steps and for the scenario of a vertical magnetic fi eld. The magneto-acoustic wave propagates from the source (piston) located at (x; z) = (1000;-750) km. The hori ... more

Views: 1153

Mopra_CMZ_12CO_13CO_P-V

Author: Rebecca Blackwell
Video of the current Mopra CMZ 12CO and 13CO in position-velocity space, as shown at the UNSW December 2015 Mopra Workshop.

Views: 788

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: 1086