SOTSP: HOP323 (SST+IRIS) mossy plage
2016-09-25T07:40:00 to 2016-09-25T10:30:00
Science Goal: SST-IRIS-Hinode Campaign, A. Chromospheric Heating, a. AR mossy plage
Program: Very Fast Map, 9.6"x82", repeat
Target: Plage
xcen=236 ycen=-378
Instrument: SOTSP
HOP/JOP: 323
Description:
Main Objective: The goal is to obtain very high cadence, high spatial resolution observations of the photosphere and chromosphere with SST to accompany the IRIS and Hinode spectra and images to study chromospheric heating in ARs and quiet sun and the origin of RBEs/RREs/jets in quiet sun. Scientific Justification: Coordinated observing campaign using the Swedish Solar Telescope on La Palma, IRIS and Hinode is scheduled for September 23 - October 6, 2016. Observers at the SST will be from LMSAL for this entire period. The goal is to obtain very high cadence, high spatial resolution observations of the photosphere and chromosphere with CRISP to accompany the IRIS spectra and images of the chromosphere and transition region. CRISP data will allow measurement of line profiles for Doppler shifts and polarization for some magnetic field information above the photosphere. The new blue/UV imaging system CHROMIS may be available in addition to CRISP: it is being installed in August. Hinode will contribute precise photospheric fields with SOT/SP, and coronal images and spectra with XRT and EIS. The main science goals this year are as follows. Another goal may be added, depending on the success of previous SST during the summer. A. Chromospheric Heating Aim: IRIS heating diagnostics supported by SST polarimetry and chromospheric context Targets: a. AR mossy plage (moss): highest target priority is quiescent plage, i.e. without strong flux emergence. This is preferably found in old (decaying) active regions. Moss can be recognized by AIA 94A emission - the roots of hot loops. Preferably close to disk center. (with moss, AIA 94 loops, AIA 171 no cool loops, no flux emergence, not at the limb)
