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Proceedings Paper

DIMMI-2h a MOF-based instrument for Solar Satellite ADAHELI
Author(s): M. Stangalini; P. F. Moretti; F. Berrilli; D. Del Moro; S. M. Jefferies; G. Severino; M. Oliviero
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Paper Abstract

The Doppler-Intensity-Magnetograms with a Magneto-optical filter Instrument at two heights (DIMMI-2h) is a double channel imager using Magneto Optical Filters (MOF) in the potassium 770 nm and sodium 589 nm lines. The instrument will provide simultaneous dopplergrams (velocity fields), continuum intensity and longitudinal magnetic flux images at two heights in the solar atmosphere corresponding to low and high photosphere. Dimmi- 2h is the possible piggy-back payload on ADAHELI satellite. The spatial resolution (approximately 4 arcsec) and the high temporal cadence (15 s) will permit to investigate low and medium oscillating modes (from 0 to below 1000) up to approximately 32 mHz in the frequency spectrum. The acquisition of long-term simultaneous velocity, intensity and magnetic information up to these high frequencies will permit also the study of the propagation and excitation of the waves with a frequency resolution never obtained before.

Paper Details

Date Published: 6 October 2011
PDF: 7 pages
Proc. SPIE 8148, Solar Physics and Space Weather Instrumentation IV, 81480U (6 October 2011); doi: 10.1117/12.893579
Show Author Affiliations
M. Stangalini, Univ. degli Studi di Roma Tor Vergata (Italy)
P. F. Moretti, Consiglio Nazionale delle Ricerche (Italy)
F. Berrilli, Univ. degli Studi di Roma Tor Vergata (Italy)
D. Del Moro, Univ. degli Studi di Roma Tor Vergata (Italy)
S. M. Jefferies, Univ. of Hawai'i (United States)
G. Severino, INAF - Osservatorio Astronomico di Capodimonte (Italy)
M. Oliviero, INAF - Osservatorio Astronomico di Capodimonte (Italy)

Published in SPIE Proceedings Vol. 8148:
Solar Physics and Space Weather Instrumentation IV
Silvano Fineschi; Judy Fennelly, Editor(s)

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