Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-10-23
Astrophys.J. 620 (2005) L71
Astronomy and Astrophysics
Astrophysics
ApJ Letters, submitted
Scientific paper
10.1086/428397
We present observations of the quiet solar photosphere in the \ion{Fe}{1} lines at 6302 \AA where at least four different spatial locations exhibit upwards-directed supersonic flows. These upflows can only be detected in the circular polarization profiles as a double-peaked structure in the blue lobe of both \ion{Fe}{1} lines. We have detected cases of either magnetic polarity in the data. The polarization signals associated with the upflows are very weak, which is probably why they had not been seen before in this type of observations. We propose that the observed flows are the signature of aborted convective collapse, similar to the case reported by \citeN{BRRHC+01}. Our data indicates that this phenomenon occurs frequently in the quiet Sun, which means that many magnetic elements (although the fraction is still unknown) are destroyed even before they are formed completely. The spectral signatures of supersonic upflows reported here are probably present in most spectro-polarimetric observations of sufficient signal-to-noise and spatial resolution.
Manso R.
Socas-Navarro Hector
No associations
LandOfFree
Shocks in the Quiet Solar Photosphere: A Rather Common Occurrence 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 Shocks in the Quiet Solar Photosphere: A Rather Common Occurrence, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shocks in the Quiet Solar Photosphere: A Rather Common Occurrence will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-187994