A halo coronal mass ejection associated with active region NOAA 8375

Details A halo coronal mass ejection associated with active region NOAA 8375 A halo coronal mass ejection associated with active region NOAA 8375

Jun 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001pbeio..37...19z&link_type=abstract

Astrophysics Reports. Publications of the Beijing Astronomical Observatory, No. 37, p. 19 - 25 (2001). In: Proceedings of the Ei

Astronomy and Astrophysics

Astrophysics

Sun: Chromosphere, Sun: Flares, Sun: Filaments, Sun: Magnetic Fields, Sun: Coronal Mass Ejections (Cmes)

Scientific paper

It is the fact that there are few observations published so far to show the initiation of coronal mass ejections (CMEs). This paper shows that the solar-disk counterparts to a halo CME display an evolution of vector magnetic fields, as well as dynamics in the solar atmosphere. We examine the active phenomena in active region NOAA 8375, the surface source of the halo CME, on 1998 November 4, using ground-based and space observations from Huairou Solar Observing Station (HSOS) and the Solar and Heliospheric Observatory (SOHO). The vector magnetic fields in this region had the following properties: a main positive polarity line-of-sight field, with the transverse component rotating in counter-clockwise sense when looking downward against the photosphere, was surrounded by relatively weak negative polarity fields; many moving magnetic features emerged from the positive magnetic field, and cancelled (merged) with the opposite (the same) polarity fields. In the observational interval, there were two filaments lying above the neutral line between the main positive field and its surrounding weak negative fields. The eruption of each filament triggered a C-class flare. The halo CME consisted of several components, the main two components were associated with the two eruptive filaments and flares.

Affiliated with

Also associated with

No associations

Rating

A halo coronal mass ejection associated with active region NOAA 8375 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A halo coronal mass ejection associated with active region NOAA 8375, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A halo coronal mass ejection associated with active region NOAA 8375 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-795105