Multiwavelength Observations of a B-class Flare Using XSM, AIA, and XRT

Bibliographic Details
Title: Multiwavelength Observations of a B-class Flare Using XSM, AIA, and XRT
Authors: Yamini K. Rao, B. Mondal, Giulio Del Zanna, N. P. S. Mithun, S. V. Vadawale, K. K. Reeves, Helen E. Mason, Anil Bhardwaj
Source: The Astrophysical Journal, Vol 958, Iss 2, p 190 (2023)
Publisher Information: IOP Publishing, 2023.
Publication Year: 2023
Collection: LCC:Astrophysics
Subject Terms: Solar corona, Astrophysics, QB460-466
More Details: We present multiwavelength observations by Chandrayaan-2/Solar X-ray Monitor, Solar Dynamics Observatory/Atmospheric Imaging Assembly, and Hinode/X-Ray Telescope (XRT) of a B-class flare observed on 2021 February 25, originating from an active region (AR 12804) near the northwest limb. The microflare lasts for ∼30 minutes and is composed of hot loops reaching temperatures of 10 MK. We report excellent agreement (within 20%) for the average effective temperatures obtained at the flare peak from all the three instruments, which have different temperature sensitivities. The XRT filter combination of Be-thin and Be-med provides an excellent opportunity to measure the high temperatures in such microflare events. The elemental abundances during the evolution of the microflare are also studied and observed to drop toward photospheric values at the flare peak time, compared to coronal values during the rise and decay phase. This is consistent with previous XSM studies.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1538-4357
Relation: https://doaj.org/toc/1538-4357
DOI: 10.3847/1538-4357/acf46a
Access URL: https://doaj.org/article/89af9dfb02254f71ae99109b36baaf76
Accession Number: edsdoj.89af9dfb02254f71ae99109b36baaf76
Database: Directory of Open Access Journals
More Details
ISSN:15384357
DOI:10.3847/1538-4357/acf46a
Published in:The Astrophysical Journal
Language:English