Daniel Gass
Gather.town id
SPO04
Poster Title
Using EUV SDO/AIA data to produce a comprehensive study of coronal limb loop evolution over cycle 24.
Institution
University of Central Lancashire
Abstract (short summary)
The Atmospheric Imaging Assembly of NASA’s SDO Mission has been an invaluable tool for solar physics research in its 11 years of operation. The AIA has collected a huge quantity of spatially well resolved solar images with a short time cadence in multiple wavelengths, representing many layers of the solar atmosphere and their respective energy regimes.
Despite this, there have been relatively few studies, especially in coronal physics, which make proper use of this extensive lateral coverage. Analysis of bulk properties of coronal loops, and how these properties are related to and vary throughout the solar cycle could provide insight into the changing energy distribution of the corona and its underlying magnetic mechanisms over time.
The work presented in this poster presents results from the largest survey of coronal loops undertaken using SDO AIA data in the 171, 193, 211, and 304 angstrom bands across the solar cycle to date. Some of the key results include an indication of loop widths following an S.O.C (Self-organized criticality) distribution, with a power law slope of 2.7-3.3 with significant variation across the 11 year half cycle captured by the SDO. Loop positional distributions show signs of asymmetry which varies throughout the solar cycle, mirroring N-S asymmetry that is seen in sun spot coverage and other solar activity indicators.
The poster describes a novel means of measuring and analysing coronal loop structures using automated loop tracing to undertake an examination of over ten years of NASA’s SDO/AIA data across solar cycle 24, and its applicability to other datasets and future aims are discussed.
Despite this, there have been relatively few studies, especially in coronal physics, which make proper use of this extensive lateral coverage. Analysis of bulk properties of coronal loops, and how these properties are related to and vary throughout the solar cycle could provide insight into the changing energy distribution of the corona and its underlying magnetic mechanisms over time.
The work presented in this poster presents results from the largest survey of coronal loops undertaken using SDO AIA data in the 171, 193, 211, and 304 angstrom bands across the solar cycle to date. Some of the key results include an indication of loop widths following an S.O.C (Self-organized criticality) distribution, with a power law slope of 2.7-3.3 with significant variation across the 11 year half cycle captured by the SDO. Loop positional distributions show signs of asymmetry which varies throughout the solar cycle, mirroring N-S asymmetry that is seen in sun spot coverage and other solar activity indicators.
The poster describes a novel means of measuring and analysing coronal loop structures using automated loop tracing to undertake an examination of over ten years of NASA’s SDO/AIA data across solar cycle 24, and its applicability to other datasets and future aims are discussed.
Poster file