... The Polar Aurora ("Northern Lights") . ... The ribbons of the aurora are caused by fast electrons accelerated along magnetic ... Learn more on the web page Secrets of the Polar Aurora .. ...
... Los primeros investigadores, que cre an que los electrones de las auroras llegaban desde el Sol (vea la historia ) no pod an entender porqu la aurora estaba ausente de la cercan a del propio polo magn tico. ...
... Kristian Birkeland, informando en 1903 sobre sus viajes a la zona de auroras, propuso que las perturbaciones magn ticas que acompa aban a las auroras estaban causadas por grandes corrientes el ctricas fluyendo a lo largo de las formaciones de la aurora ...
... A recent picture shows not only the footprint aurora of Io (which also leaves an auroral "trail" behind it), but also spots of light attributed to auroras formed in a similar manner by Europa and Ganymede, more distant moons of Jupiter. ...
... The most spectacular form of discrete auroras is the substorm related auroral bulge ... are three characteristic types of discrete aurora within a bulge (Nakamura et al ... north-south (N-S) aligned auroras . eastward propagating auroras . ...