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IBIS-A: The IBIS data Archive

The IBIS data Archive (IBIS-A) contains data acquired with IBIS (Interferometric BIdimensional Spectropolarimeter), an imaging spectro-polarimeter based on a dual Fabry-Perot interferometric system (Cavallini 2006). IBIS allows spectropolarimetric observations of the solar photosphere and chromosphere at high spatial (pixel scale of 0.09 arcsec), spectral (> 200000), and temporal resolution (8-15 fps). Read more...

A typical IBIS data set consists of measurements taken in sequence over multiple spectral lines (e.g. Fe I at 6302 Å and 6173 Å, and Ca II at 8542 Å); each line is sampled at several spectral positions (e.g. often between 10 and 30), each position at six polarimetric states (I+Q, I-Q, I+V, I-V, I+U and I-U). Therefore, a single scientific observation consists of many data (e.g. hundreds of image files, 1000 x 1000 pixel each, with variable cadence).

IBIS has been built by the INAF (Italian National Institute for Astrophysics) at the Arcetri Astrophysical Observatory, with the support of the Dept. of Physics and Astronomy of the University of Florence, and the Dept. of Physics of the University of Rome Tor Vergata, and installed in June 2003 at the Dunn Solar Telescope of the US National Solar Observatory in Sunspot, New Mexico. Read more...

IBIS is operated and supported by INAF in collaboration with the US National Solar Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc. (AURA), under cooperative agreement with the US National Science Foundation.

The IBIS-A has been designed to realize the storage, the management, and the retrieval of the IBIS data. Currently, IBIS-A includes 30 TB of data taken during 28 observing campaigns carried out from 2008 to 2019 on 159 days. Read more...

The raw data in FITS format derived from the observations are transferred and stored on a RS24S3 SuperNAS server (96 TB, 64 GB Ram, 2 CPU Haswell 4C E5-2623V3 3G) at the INAF Osservatorio Astronomico di Roma, following the data definition and file arrangement given at the telescope.

Search data in IBIS-A :

The IBIS-A has been realised in the framework of the FP7 SOLARNET3 High-resolution Solar Physics Network that aims at integrating the major European infrastructures in the field of high-resolution solar physics, as a step towards the realisation of the 4m EST (European Solar Telescope, Collados et al. 2010, 2013).

A sharp view of the Sun obtained with the IBIS at the NSO/Dunn Solar Telescope (New Mexico, USA).
The image shows remarkable details of the large sunspot seen in AR NOAA 12546 near the central meridian [S07W07].
Observer: Marco Stangalini (INAF) et al.
Image processing: Fabrizio Giorgi (INAF)
Wavelength: Fe I 617.3 nm line (continuum)
Date: 20 May 2016, 13:53 UT

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