NDLI: MHD simulations of current-sheet formation over a bipolar active region

Please wait, while we are loading the content...

Light curve interpretation for “Quiescent” X-ray novae in a model with noncollisional interaction between the flow and disk. The system GU Mus = GRS 1124-68

Gamma-ray bursts—tracers of the history of star formation in the Universe

Studies of classical barium stars

Simultaneous dual-frequency observations of giant radio pulses from the millisecond pulsar B1937+21

Analysis of the noise background of the “ULITKA” gravitational antenna

The lower temperature limit of accretors

Equation of state for the internal structure of solar-type stars

MHD simulations of current-sheet formation over a bipolar active region

Electron acceleration in the ionosphere of Io

Astronomy Reports : Volume 47, Issue 7, July 2003

Astronomy Reports : Volume 47, Issue 6, June 2003

Astronomy Reports : Volume 47, Issue 5, May 2003

Astronomy Reports : Volume 47, Issue 4, April 2003

Astronomy Reports : Volume 47, Issue 3, March 2003

Astronomy Reports : Volume 47, Issue 2, February 2003

Astronomy Reports : Volume 47, Issue 1, January 2003

Astronomy Reports : Volume 46

Astronomy Reports : Volume 45

Astronomy Reports : Volume 44

MHD simulations of current-sheet formation over a bipolar active region

Content Provider	Springer Nature Link
Author	Podgorny, I. M. Podgorny, A. I.
Copyright Year	2003
Abstract	We present the results of numerical simulations of the development of a current sheet in the solar corona over a bipolar region during the emergence of two new sunspots arranged collinearly with older spots. Two fronts of increased plasma density form at the boundary of the rising new magnetic flux. One of these is due to the generation of a current sheet, whose magnetic field accumulates energy for a flare. The other front is a branch of the density perturbation, and separates the old and new magnetic fluxes in a region where the magnetic field lines have the same direction on both sides of the boundary. The development of this perturbation is not associated with the energy accumulation in the corona, and hinders observation of the preflare state and complicates analysis of the results. This second front can be interpreted as the eruption of a filament before the onset of the flare. A scheme conservative with respect to magnetic flux was introduced in the Peresvet code that solves the MHD equations, in order to suppress numerical instabilities in regions of large magnetic-field gradients.
Starting Page	694
Ending Page	700
Page Count	7
File Format	PDF
ISSN	10637729
Journal	Astronomy Reports
Volume Number	47
Issue Number	8
e-ISSN	15626881
Language	English
Publisher	Nauka/Interperiodica
Publisher Date	2003-01-01
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Astronomy
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

An MHD model for a heliospheric current sheet

Simulation of the current sheet in a flare-active region and comparison to radio data

Numerical MHD simulations of the appearance of a series of current sheets above the active region AR 0365

Formation of several current sheets preceding a series of flares above the active region AR 0365

A Study of the Distribution of Electric Currents and Current Helicity in the Photosphere at the Growth Stage of a Bipolar Active Region

Response timescales of the magnetotail current sheet during a geomagnetic storm: Global MHD simulations

The possibility of energy accumulation in a current sheet above the NOAA 9077 active region prior to the flare on 14 July 2000

Current-sheet-associated radio sources and development of the magnetosphere of an active region revealed from 17 GHz and Yohkoh data

Active Region Formation through the Negative Effective Magnetic Pressure Instability

MHD simulations of current-sheet formation over a bipolar active region

Similar Documents

An MHD model for a heliospheric current sheet

Simulation of the current sheet in a flare-active region and comparison to radio data

Numerical MHD simulations of the appearance of a series of current sheets above the active region AR 0365

Formation of several current sheets preceding a series of flares above the active region AR 0365

A Study of the Distribution of Electric Currents and Current Helicity in the Photosphere at the Growth Stage of a Bipolar Active Region

Response timescales of the magnetotail current sheet during a geomagnetic storm: Global MHD simulations

The possibility of energy accumulation in a current sheet above the NOAA 9077 active region prior to the flare on 14 July 2000

Current-sheet-associated radio sources and development of the magnetosphere of an active region revealed from 17 GHz and Yohkoh data

Active Region Formation through the Negative Effective Magnetic Pressure Instability

MHD simulations of current-sheet formation over a bipolar active region