High-Energy Solar Physics

Hudson, H. S.; MacKinnon, A. L.

doi:10.1016/b978-0-12-814334-6.00011-x

Cited by 2 publications

(2 citation statements)

References 119 publications

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“…This enhanced turbulence (represented as circles in Fig. 6) provides strong heating and coronal X-ray emission (Hudson & MacKinnon 2019). These manifestations will be accessible with LST and HXI.…”

Section: Reconnection and Indirect Detection Of A Current Sheetmentioning

confidence: 92%

The synergy between the payloads on the ASO-S mission

Vial

2019

Res. Astron. Astrophys.

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This paper addresses the improved science resulting from joint observations performed by the different instruments onboard the Advanced Space-based Solar Observatory (ASO-S) mission along with ancillary instruments on missions flying at the same time. It first describes the three major instruments along with their stated objectives. Then it presents some basic science issues concerning jointly observed flares, coronal mass ejections (CMEs) and eruptive prominences (EPs). Each physical candidate (magnetic reconnection, instability, hard X-ray emission and magnetic coronal field topology) is discussed in terms of its signature and identification with ASO-S instrumentation. The importance of Lyα detection and non-LTE modeling is stressed. Some instrumental and science challenges are briefly discussed.

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Section: Reconnection and Indirect Detection Of A Current Sheetmentioning

confidence: 92%

The synergy between the payloads on the ASO-S mission

Vial

2019

Res. Astron. Astrophys.

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“…The solar X-ray flux returned to the pre-flare level at about 19:30 UT. The flare was a typical example of so-called long-duration event with the slow rise phase (sLDE) (Hudson & McKenzie 2000;Ba ¸k-Ste ¸ślicka et al 2011). The data analyzed here were obtained by the Atmospheric Imaging Assembly (AIA) (Lemen et al 2012) installed onboard the Solar Dynamics Observatory (SDO) (Pesnell et al 2012) and by Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI).…”

Section: Observations and Data Analysismentioning

confidence: 99%

Fine structure and long duration of a flare coronal X-ray source with RHESSI and SDO/AIA data

Kolomanski,

Mrozek,

Chmielewska

2017

Preprint

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Context. Coronal X-ray sources (CXSs) are phenomenon very often occurring in solar flares regardless of a flare size, duration or power. The nature of the sources was difficult to uncover for many years. It seems that at last, combining data from RHESSI and SDO/AIA, there is a unprecedented possibility to 'look inside' CXSs and to answer the questions about their formation, evolution and structure.Aims. We present a study of a CXS of the SOL2011-10-22T11:10 long-duration flare observed simultaneously with RHESSI and SDO/AIA. We focus our attention on the following questions: What was responsible for the CXS presence and long duration? Was there any fine structure in the CXS? Methods. The AIA instrument delivers high quality images in various EUV filters. RHESSI data can be used to reconstruct images in X-rays and to perform imaging spectroscopy. Such a complementary data enables to study a relation between the CXS and structures observed in EUV during the decay phase of the flare. Results. X-ray emission recorded by RHESSI during the decay phase of the flare came from about 10 MK hot CXS. The source was observable for 5 hours. This long presence of the source could be supported by magnetic reconnection ongoing during the decay phase. Supra-arcade downflows, which are considered to be a manifestation of magnetic reconnection, were observed at the same time as the CXS. The source was co-spatial with the part of the hot supra-arcade region that had the highest emission measure and simultaneously the temperature within the range of RHESSI thermal-response. However, while the supra-arcade region was a dynamic region consisting of small-scale structures, the CXS seemed to be smooth, structureless. We run simulations using real and synthetic RHESSI data, but we did not find any strong evidence that the CXS had any small-scale structure.

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High-Energy Solar Physics

Cited by 2 publications

References 119 publications

The synergy between the payloads on the ASO-S mission

The synergy between the payloads on the ASO-S mission

Fine structure and long duration of a flare coronal X-ray source with RHESSI and SDO/AIA data

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