NDLI: Magnetic Field Structures in a Facular Region Observed by THEMIS and Hinode

Content Provider	Springer Nature Link
Author	Guo, Y. Schmieder, B. Bommier, V. Gosain, S.
Copyright Year	2010
Abstract	The main objective of this paper is to build and compare vector magnetic maps obtained by two spectral polarimeters, i.e. THEMIS/MTR and Hinode SOT/SP, using two inversion codes (UNNOFIT and MELANIE) based on the Milne – Eddington solar atmosphere model. To this end, we used observations of a facular region within active region NOAA 10996 on 23 May 2008, and found consistent results concerning the field strength, azimuth and inclination distributions. Because SOT/SP is free from the seeing effect and has better spatial resolution, we were able to resolve small magnetic polarities with sizes of 1″ to 2″, and we could detect strong horizontal magnetic fields, which converge or diverge in negative or positive facular polarities. These findings support models which suggest the existence of small vertical flux tube bundles in faculae. A new method is proposed to get the relative formation heights of the multi-lines observed by MTR assuming the validity of a flux tube model for the faculae. We found that the Fe i 6302.5 Å line forms at a greater atmospheric height than the Fe i 5250.2 Å line.
Starting Page	35
Ending Page	52
Page Count	18
File Format	PDF
ISSN	00380938
Journal	Solar Physics
Volume Number	262
Issue Number	1
e-ISSN	1573093X
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-02-13
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Active regions, structure Magnetic fields, photosphere Polarization, optical Extraterrestrial Physics, Space Sciences Meteorology/Climatology Astrophysics and Astroparticles
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

Modeling and Interpreting the Effects of Spatial Resolution on Solar Magnetic Field Maps

A Cross-Comparison of Cotemporal Magnetograms Obtained with MDI/SOHO and SP/Hinode

Study of the Three-Dimensional Shape and Dynamics of Coronal Loops Observed by Hinode/EIS

Small-Scale Flux Emergence Observed Using Hinode/SOT

Comparing Values of the Relative Magnetic Helicity in Finite Volumes

Nonlinear Force-Free Extrapolation of Emerging Flux with a Global Twist and Serpentine Fine Structures

Magnetic Field Structures in a Facular Region Observed by THEMIS and Hinode

How Should One Optimize Nonlinear Force-Free Coronal Magnetic Field Extrapolations from SDO/HMI Vector Magnetograms?

Statistical Feature Recognition for Multidimensional Solar Imagery

Magnetic Field Structures in a Facular Region Observed by THEMIS and Hinode

Similar Documents

Modeling and Interpreting the Effects of Spatial Resolution on Solar Magnetic Field Maps

A Cross-Comparison of Cotemporal Magnetograms Obtained with MDI/SOHO and SP/Hinode

Study of the Three-Dimensional Shape and Dynamics of Coronal Loops Observed by Hinode/EIS

Small-Scale Flux Emergence Observed Using Hinode/SOT

Comparing Values of the Relative Magnetic Helicity in Finite Volumes

Nonlinear Force-Free Extrapolation of Emerging Flux with a Global Twist and Serpentine Fine Structures

Magnetic Field Structures in a Facular Region Observed by THEMIS and Hinode

How Should One Optimize Nonlinear Force-Free Coronal Magnetic Field Extrapolations from SDO/HMI Vector Magnetograms?

Statistical Feature Recognition for Multidimensional Solar Imagery

Magnetic Field Structures in a Facular Region Observed by THEMIS and Hinode