High-resolution observations of the solar photosphere, chromosphere and transition region. A database of coordinated IRIS and SST observations

TL;DR

This paper introduces a comprehensive database of high-resolution, coordinated observations of the solar atmosphere from IRIS and SST, covering various solar features to facilitate solar physics research.

Contribution

It provides the first publicly available, co-aligned IRIS and SST datasets across multiple solar features, enabling detailed multi-layer solar atmosphere studies.

Findings

Database includes diverse solar features like active regions and sunspots.

High-resolution UV and visible observations enable detailed solar analysis.

Open access promotes broader scientific research and discovery.

Abstract

NASA's Interface Region Imaging Spectrograph (IRIS) provides high resolution observations of the solar atmosphere through UV spectroscopy and imaging. Since the launch of IRIS in June 2013, we have conducted systematic observation campaigns in coordination with the Swedish 1-m Solar Telescope (SST) on La Palma. The SST provides complementary high-resolution observations of the photosphere and chromosphere. The SST observations include spectro-polarimetric imaging in photospheric Fe I lines and spectrally-resolved imaging in the chromospheric Ca II 8542 A, H-alpha, and Ca II K lines. We present a database of co-aligned IRIS and SST datasets that is open for analysis to the scientific community. The database covers a variety of targets including active regions, sunspots, plage, quiet Sun, and coronal holes.