Narang, Nancy

Seminar presented at Indian Institute of Astrophysics, Bangalore, India on 2025-01-30

Abstract: The Solar Orbiter mission, launched in 2020, provides opportunities for new insights into heliophysics research, as it carries high temporal and spatial resolution instruments working in remote sensing and in-situ mode, accessing yet unresolved scales. In this talk, I will focus on the capabilities of the Extreme Ultraviolet Imager (EUI) onboard Solar Orbiter. EUI is composed of three telescopes, the Full Sun Imager (FSI), and two High Resolution Imagers, one observing in EUV (HRIEUV) and another in Lyman-alpha (HRILYA). EUI observes the Sun from the smallest features at the base of the corona and in the chromosphere, up to the largest scales in the extended corona. FSI reveals the structure and evolution of the corona to unprecedented distances from the Sun. HRI's unparalleled spatial and temporal resolution at perihelion naturally leads to discovering new structures at previously inaccessible scales such as campfires, picojets, and high-frequency decayless kink waves observed to date. In this talk I will present recent results about small-scale EUV transient brightenings observed with EUI and insights about their possible role in the coronal heating will be discussed.

Keyword(s): EUI, Solar Orbiter, EUV Brightenings, Nanoflares, Magnetic Reconnection
Funding: B2/223/P1/CLOSE-UP