Dressing the Coronal Magnetic Extrapolations of Active Regions with a Parameterized Thermal Structure

Gelu Nita, Nicholeen M. Viall, James A. Klimchuk, Maria A. Loukitcheva, Dale Gary, Alexey A. Kuznetsov, Gregory Fleishman

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The study of time-dependent solar active region (AR) morphology and its relation to eruptive events requires analysis of imaging data obtained in multiple wavelength domains with differing spatial and time resolution, ideally in combination with 3D physical models. To facilitate this goal, we have undertaken a major enhancement of our IDL-based simulation tool, GX-Simulator, previously developed for modeling microwave and X-ray emission from flaring loops, to allow it to simulate quiescent emission from solar ARs. The framework includes new tools for building the atmospheric model and enhanced routines for calculating emission that include new wavelengths. In this paper, we use our upgraded tool to model and analyze an AR and compare the synthetic emission maps with observations. We conclude that the modeled magneto-thermal structure is a reasonably good approximation of the real one.

Original languageEnglish (US)
Article number66
JournalAstrophysical Journal
Volume853
Issue number1
DOIs
StatePublished - Jan 20 2018

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • Sun: flares
  • Sun: magnetic fields
  • Sun: radio radiation
  • acceleration of particles
  • diffusion
  • turbulence

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