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Solar Wind Modeling with the Alfvén Wave Solar atmosphere Model Driven by HMI-based Near-real-time Maps by the National Solar Observatory

Authors :
Nishtha Sachdeva
Ward B. Manchester IV
Igor Sokolov
Zhenguang Huang
Alexander Pevtsov
Luca Bertello
Alexei A. Pevtsov
Gabor Toth
Bart van der Holst
Carl J. Henney
Source :
The Astrophysical Journal, Vol 952, Iss 2, p 117 (2023)
Publication Year :
2023
Publisher :
IOP Publishing, 2023.

Abstract

We explore the performance of the Alfvén Wave Solar atmosphere Model with near-real-time (NRT) synoptic maps of the photospheric vector magnetic field. These maps, produced by assimilating data from the Helioseismic Magnetic Imager (HMI) on board the Solar Dynamics Observatory, use a different method developed at the National Solar Observatory (NSO) to provide a near contemporaneous source of data to drive numerical models. Here, we apply these NSO-HMI-NRT maps to simulate three full Carrington rotations: 2107.69 (centered on the 2011 March 7 20:12 CME event), 2123.5 (centered on 2012 May 11), and 2219.12 (centered on the 2019 July 2 solar eclipse), which together cover various activity levels for solar cycle 24. We show the simulation results, which reproduce both extreme ultraviolet emission from the low corona while simultaneously matching in situ observations at 1 au as well as quantify the total unsigned open magnetic flux from these maps.

Details

Language :
English
ISSN :
15384357
Volume :
952
Issue :
2
Database :
Directory of Open Access Journals
Journal :
The Astrophysical Journal
Publication Type :
Academic Journal
Accession number :
edsdoj.198741a2b9fe41459b4e2f374629199f
Document Type :
article
Full Text :
https://doi.org/10.3847/1538-4357/acda87