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This page was created on 04-Feb-2009 11:25 by David R Williams

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Version Date Modified Size Author Changes ... Change note
828 03-Feb-2017 10:35 18 KB Denver to previous The line's engaged cena anafranilu Minter is now trying his hand at headhunting

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At line 189 added 7 lines
EDL: the magnetic (prominence) bubbles - is it the MHD, HD?
TB: BC Low believes it's a solenoidal knot field emerging and then rising up into the equilibrium of the cavity. I'm convinced it's also thermal, that it's hotter. Neal Hurlburt is now simulating this as a concentrated field and it doesn't rise unless he heats if first.
EDL: it looks like a radiative interface.
TB: Yes, it's a plasma pile-up I think, cos you see the plasma falling down and stopping on the rim. It's one of the main goals of the SUMER campaign in April.
Karin: how large
TB: about 50 Mm, and they live for an hour or more, so we'd have to get very lucky, to scan SUMER across it. Could get readings in TR lines.
If it's a purely thermal effect, the speed of the rise indicates a certain temperature rise.
At line 198 added 2 lines
!What was SOT looking at...?
Knowledgebase
At line 201 added 34 lines
If you have a particular date in mind, it's very easy.
''SunGate portal looks like just the thing we were talking about yesterday.''
* Reduction
Shutterless mode for really fast Stokes parameters is possible but takes a little more work.
Because a lot of the SOT datasets are very large. So rather than reading it all into memory, you can tell it to read in a filelist, then dump the output to disk.
SP: L0 is the raw reformatted 4D data. Mostly just reading one side of the CCD now.
[http://sot.lmsal.com/data/sot/level1d] means you never have to run SP_PREP(!). Just go there for SP data.
KPD: what's the noise level in these data?
TB: 2 - 5 gauss.
For QS, we can now tel you the QS field with rapid scans across a small area 10x164" would take just minutes, depending on sensitivity. Can also shorten the slit if necessary.
SOME level 2 data are online at http://sot.lmsal.com/data/sot/level2 - they are calibrated IN GAUSS.
Can take these data and make a vector field if you want.
Lastly, I note that we have the SOT analysis guide and it includes the Paris Tutorials on certain datasets, including SP_PREP if the data centre each
Bruce probably has a tool he can give you to get Bx, By, Bz.
EDL: notwithstanding the 180ยบ issue.
TB: MERLIN code has
KPD: the inclination is to the LS
Shutterless