NDLI: Using the Evolution of Coronal Dimming Regions to Probe the Global Magnetic Field Topology : “Unidentical Twins”: A New Interpretation of the 12 May 1997 Event

Content Provider	Springer Nature Link
Author	Attrill, G. Nakwacki, M. S. Harra, L. K. Van Driel Gesztelyi, L. Mandrini, C. H. Dasso, S. Wang, J.
Copyright Year	2006
Abstract	We demonstrate that study of the evolving magnetic nature of coronal dimming regions can be used to probe the large-scale magnetic structure involved in the eruption of a coronal mass ejection (CME). We analyse the intensity evolution of coronal dimming regions using 195 Å data from the Extreme ultraviolet Imaging Telescope (EIT) on board the Solar and Heliospheric Observatory (SOHO). We measure the magnetic flux, using data from the SOHO/Michelson Doppler Imager (MDI), in the regions that seem most likely to be related to plasma removal. Then, we compare these magnetic flux measurements to the flux in the associated magnetic cloud (MC). Here, we present our analysis of the well-studied event on 12 May 1997 that took place just after solar minimum in a simple magnetic configuration. We present a synthesis of results already published and propose that driven “interchange reconnection” between the expanding CME structure with ‘`open’' field lines of the northern coronal hole region led to the asymmetric temporal and spatial evolution of the two main dimming regions, associated with this event. As a result of this reconnection process, we find the southern-most dimming region to be the principal foot-point of the MC. The magnetic flux from this dimming region and that of the MC are found to be in close agreement within the same order of magnitude, 10$^{21}$ Mx.
Starting Page	117
Ending Page	139
Page Count	23
File Format	PDF
ISSN	00380938
Journal	Solar Physics
Volume Number	238
Issue Number	1
e-ISSN	1573093X
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2006-08-27
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Astronomy Astrophysics Extraterrestrial Physics, Space Sciences
Content Type	Text
Resource Type	Article
Subject	Astronomy and Astrophysics Space and Planetary Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Using the Evolution of Coronal Dimming Regions to Probe the Global Magnetic Field Topology

Sequential Coronal Mass Ejections from AR8038 in May 1997

Sequential Coronal Mass Ejections from AR8038 in May 1997

Topology of Magnetic Field and Coronal Heating in Solar Active Regions

Magnetic Topology of Active Regions and Coronal Holes: Implications for Coronal Outflows and the Solar Wind

Polar Coronal Structures and the Global Magnetic Field Evolution Through the Cycle

Global Coronal Seismology

Modelling the Global Solar Corona II: Coronal Evolution and Filament Chirality Comparison

On the Coronal Mass Ejection onset and Coronal Dimming

Using the Evolution of Coronal Dimming Regions to Probe the Global Magnetic Field Topology : “Unidentical Twins”: A New Interpretation of the 12 May 1997 Event

Similar Documents

Using the Evolution of Coronal Dimming Regions to Probe the Global Magnetic Field Topology

Sequential Coronal Mass Ejections from AR8038 in May 1997

Sequential Coronal Mass Ejections from AR8038 in May 1997

Topology of Magnetic Field and Coronal Heating in Solar Active Regions

Magnetic Topology of Active Regions and Coronal Holes: Implications for Coronal Outflows and the Solar Wind

Polar Coronal Structures and the Global Magnetic Field Evolution Through the Cycle

Global Coronal Seismology

Modelling the Global Solar Corona II: Coronal Evolution and Filament Chirality Comparison

On the Coronal Mass Ejection onset and Coronal Dimming

Using the Evolution of Coronal Dimming Regions to Probe the Global Magnetic Field Topology : “Unidentical Twins”: A New Interpretation of the 12 May 1997 Event