Observation

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Groups: Mode, FOV, # spectra in map

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2016-08-28 16:04:17-17:04:57

HOP319 (MMFs) with BBSO + IRIS

Moving magnetic features in the periphery of sunspots

x,y:	175",-421"
Max FOV:	20"x81"
Target:	Active Region
Nearby Events

6302A Continuum Intensity	20"x81"	903 spectra
6302A Longitudinal Flux Density	20"x81"	903 spectra
6302A Transverse Flux Density	20"x81"	903 spectra
6302A Velocity 6301.5A	20"x81"	903 spectra

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SOTSP: HOP319 (MMFs) with BBSO + IRIS

2016-08-28T16:04:17 to 2016-08-28T17:04:57

Science Goal: Moving magnetic features in the periphery of sunspots

Program: Fast mode, summingxbinning, 20"x81.2", CCD-1side, repeats

Target: Active Region

xcen=175 ycen=-421

Instrument: SOTSP

HOP/JOP: 319

Description: The proposed coordinated observations aim at understanding the intrinsic nature of moving magnetic features (MMFs) in the periphery of sunspots, trying to discriminate a few possibilities on their origin: 1) They are a part of magnetic flux of sunspots and representing sunspot decay
2) They are propagating kinks or knots in the magnetic lines of force of sunspots
3) They are manifestations of some type of flux emergence in sunspot outer edges
4) They are submerged magnetic flux caused by mass loading or dragged by convection. We plan the joint observations with BBSO/NST, Hinode and IRIS. Our proposal to NST has been already accepted and arranged in the interval of August 25-31.

The proposed coordinated observations aim at understanding the intrinsic nature of moving magnetic features (MMFs) in the periphery of sunspots, trying to discriminate a few possibilities on their origin: 1) They are a part of magnetic flux of sunspots and representing sunspot decay
2) They are propagating kinks or knots in the magnetic lines of force of sunspots
3) They are manifestations of some type of flux emergence in sunspot outer edges
4) They are submerged magnetic flux caused by mass loading or dragged by convection. We plan the joint observations with BBSO/NST, Hinode and IRIS. Our proposal to NST has been already accepted and arranged in the interval of August 25-31.

Annotations:

Chief Observer

DeRosa(RCO)

Related Links
Cites: HOP319 (MMFs) with BBSO + IRIS

Timeline: gif use