Solar-type Magnetic Reconnection Model for Magnetar Giant Flare

Details Solar-type Magnetic Reconnection Model for Magnetar Giant Flare Solar-type Magnetic Reconnection Model for Magnetar Giant Flare

2008-03-26

arxiv.org/abs/0803.3818v2

Astronomy and Astrophysics

Astrophysics

Accepted for Publications of the Astronomical Society of Japan (PASJ Vol.62 No.4), 21 pages, 4 figures

Scientific paper

We present a theoretical model describing magnetar giant flares on the basis of solar flare/coronal mass ejection theory. In our model, a preflare activity plays a crucial role in driving evaporating flows and supplying baryonic matters into the magnetosphere. The loaded baryonic matter, that is called "prominence", is then gradually uplifted via crustal cracking with maintaining a quasi-force-free equilibrium of the magnetosphere. Finally the prominence is erupted by the magnetic pressure force due to the loss of equilibrium triggered by the explosive magnetic reconnection. The giant flare should be induced as a final outcome of the prominence eruption accompanied by large-scale field reconfigurations. An essential difference between solar and magnetar flares is the control process of their evolutionary dynamics. The flaring activity on magnetars is mainly controlled by the radiative process unlike the solar flare governed by the electron conduction. It is highly suggestive that our model is accountable for the physical properties of the extraordinary giant flare observed on 2004 December 27 from SGR1806-20, including the source of baryonic matters loaded in the expanding ejecta observed after the giant burst.

Affiliated with

Also associated with

No associations

Rating

Solar-type Magnetic Reconnection Model for Magnetar Giant Flare 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 Solar-type Magnetic Reconnection Model for Magnetar Giant Flare, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solar-type Magnetic Reconnection Model for Magnetar Giant Flare will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-353258