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Astrophysics and Astrononmy
Looking inside the Sun
Natural Sciences (Astrophysics and Astrononmy)
Date of upload:
30.04.2015
Caption:
This video is a feature of the Euronews Futuris programme from 2009: Since the first generation of telescopes, 400 years ago, astronomers have been paying close attention to the Sun, which can be observed in a level of detail not possible with any other star. But the Sun is much more than a seemingly simple sphere of plasma; the exact structure within is incredibly complex and dynamic. European researchers are using new techniques to investigate the processes taking place inside the Sun.
The icy mysteries of Pluto
Natural Sciences (Astrophysics and Astrononmy)
Date of upload:
27.02.2017
Caption:
This edition of Space takes you to the furthest reaches of our solar system, to the dwarf planet Pluto.
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.
Episode II: The QuEST for Spicules
Natural Sciences (Astrophysics and Astrononmy)
Date of upload:
14.04.2020
Caption:
The surface of the Sun is covered in features that look like needles or hairs, called "spicules". They were discovered in the 19th century by Angelo Secchi. But we still do not know their origin, their magnetic fields or their possible contribution to the heating of the solar atmosphere...
Walk with Father Secchi to "The QuEST for Spicules", the second episode of our cartoons video series "The QuEST"! (See more at http://www.est-east.eu/est/index.php/outreach?id=745)
Magneto-acoustic wave propagation in the solar atmosphere: vertical magnetic field, disturbance $\delta B$
Natural Sciences (Astrophysics and Astrononmy)
Date of upload:
09.03.2015
Co-author:
M. Roth, O. Steiner
Caption:
Magnetic field perturbations, $\delta B/B_0$, for
different time steps and for the scenario of a vertical magnetic field. The
magneto-acoustic wave propagates from the source (piston) located at (x; z) =
(1000; -750) km. The horizontal line shows the equipartition level, where the sound speed equals the Alfven speed, $c_\mathrm{s}=c_\mathrm{A}$. The vertical lines represent magnetic field lines.
The QuEST for Sunspots
Natural Sciences (Astrophysics and Astrononmy)
SOLARNET - High Resolution Solar Physics Network
Date of upload:
17.07.2019
Caption:
Observing sunspots, Galileo discovered the rotation of the Sun… George Ellery Hale discovered that they have intense magnetic fields…But there are still many open questions about these enigmatic structures. EST will help answer them.
Reaching for the Sun
Natural Sciences (Astrophysics and Astrononmy)
SOLARNET - High Resolution Solar Physics Network
Date of upload:
14.01.2019
Caption:
A teaser for the European Solar Telescope (EST)
The European Solar Telescope (EST) - Project Summary
Natural Sciences (Astrophysics and Astrononmy)
SOLARNET - High Resolution Solar Physics Network
Date of upload:
26.08.2015
Caption:
The European Solar Telescope (EST) is the future project for European ground-based solar astronomy. It is the main project for EAST (European Association for Solar Telescopes), an association with 15 member institutions from 15 European countries.
Wave propagation in a sunspot's atmosphere
Natural Sciences (Physics)
Date of upload:
02.09.2015
Co-author:
Nazaret Bello González
Caption:
A sunspot observation (NOAA11823) is shown. First the sunspot (HMI continuum intensity) rotates across the solar disk. Then the region is zoomed in and changes to the high-resolution observation of the Dunn Solar Telescope. Then the sunspot is shown in continuum intensity, later in chromospheric intensity and in a three-dimensional view revealing umbral flashes and running penumbral waves.
Observations of Sunspot AR 12418 at the VTT
Natural Sciences (Astrophysics and Astrononmy)
Date of upload:
17.09.2015
Caption:
This is a movie taped with my cell phone of the VTT control monitor taken on 17 September 2015.
The movie shows a heart shaped sunspot und perfect seeing conditions.
Simulation of a spherical magneto-acoustic wave propagating in the solar atmosphere: interaction with magnetic canopy, $\delta v$
Natural Sciences (Astrophysics and Astrononmy)
Date of upload:
13.03.2015
Co-author:
M. Roth, O. Steiner
Caption:
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 $c_\mathrm{s} =c_\mathrm{A}$.
Tornadoes in the solar atmosphere: Velocity streamlines
Natural Sciences (Astrophysics and Astrononmy)
Date of upload:
20.03.2015
Caption:
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 the $\beta=1$ layer.
Futuris - Worlds Apart The Search for Exo-Planets
Natural Sciences (Astrophysics and Astrononmy)
Date of upload:
26.08.2015
Caption:
European astronomers are scouring the Universe, convinced it is littered with planets similar to those in our Solar System. They are searching for celestial bodies just like our own Earth, and using some of the worlds most sensitive instruments to isolate the molecules which could point to forms of life.
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