A magnetic filament of solar material erupted on the sun in late September,
breaking the quiet conditions in a spectacular fashion. The 200,000 mile long
filament ripped through the sun's atmosphere, the corona, leaving behind what
looks like a canyon of fire. The glowing canyon traces the channel where
magnetic fields held the filament aloft before the explosion. In reality, the
sun is not made of fire, but of something called plasma: particles so hot that
their electrons have boiled off, creating a charged gas that is interwoven with
magnetic fields.
These images were captured on Sept. 29-30, 2013, by NASA's Solar Dynamics
Observatory, or SDO, which constantly observes the sun in a variety of
wavelengths.
Northern and
Southern Aurora Seen from Sept. 30, 2013 CME
NASA Releases Movie of Sun's Canyon of Fire
NASA Releases Movie of Sun's Canyon of Fire
Different wavelengths help capture different aspect of events in the corona.
The red images shown in the movie help highlight plasma at temperatures of
90,000° F and are good for observing filaments as they form and erupt. The
yellow images, showing temperatures at 1,000,000° F, are useful for observing
material coursing along the sun's magnetic field lines, seen in the movie as an
arcade of loops across the area of the eruption. The browner images at the
beginning of the movie show material at temperatures of 1,800,000° F, and it is
here where the canyon of fire imagery is most obvious. By comparing this with
the other colors, one sees that the two swirling ribbons moving farther away
from each other are, in fact, the footprints of the giant magnetic field loops,
which are growing and expanding as the filament pulls them upward.
Image Credit: NASA/Solar Dynamics
Observatory
Guillermo Gonzalo Sánchez Achutegui
ayabaca@gmail.com
ayabaca@hotmail.com
ayabaca@yahoo.com
nscríbete en el Foro del blog y participa : A Vuelo De Un Quinde - El Foro!
No hay comentarios:
Publicar un comentario