thumb|A post-eruption arcade present after an X5.7-class solar flare during the Bastille Day solar storm After the eruption of a solar flare, post-eruption loops made of hot plasma begin to form across the neutral line separating regions of opposite magnetic polarity near the flare's source. These loops extend from the photosphere up into the corona and form along the neutral line at increasingly greater distances from the source as time progresses. The existence of these hot loops is thought to be continued by prolonged heating present after the eruption and during the flare's decay stage.
thumb|A post-eruption arcade present after an X5.7-class solar flare during the Bastill.e Day solar storm After the eruption of a solar flare, post-eruption loops made of hot plasma begin to form across the neutral line separating regions of opposite magnetic polarity near the flare's source. These loops extend from the photosphere up into the corona and form along the neutral line at increasingly greater distances from the source as time progresses The existence of these hot loops is thought to be continued by prolonged heating present after the eruption and during the flare's decay stage.