Coronal upflows from edges of an active region observed with EUV Imaging Spectrometer onboard Hinode

TL;DR

This study investigates plasma upflows at active region edges using Hinode's EUV Imaging Spectrometer to measure Doppler velocities and electron densities, enhancing understanding of plasma supply and leakage.

Contribution

It provides new measurements of Doppler velocities and electron densities of upflows at active region edges using Hinode/EIS observations.

Findings

Measured Doppler velocities indicating plasma outflows.

Determined electron densities of the upflow regions.

Improved understanding of plasma dynamics at active region edges.

Abstract

In order to better understand the plasma supply and leakage at active regions, we investigated physical properties of the upflows from edges of active region NOAA AR10978 observed with the EUV Imaging Spectrometer (EIS) onboard Hinode. Our observational aim is to measure two quantities of the outflows: Doppler velocity and electron density.