English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Fast downflows in a chromospheric filament

Sowmya, K., Lagg, A., Solanki, S. K., & Castellanos Durán, J. S. (2019). Fast downflows in a chromospheric filament. In A. Kosovichev (Ed.), Proceedings of the International Astronomical Union: Solar and Stellar Magnetic Fields: Origins and Manifestations (pp. 454-457).

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0007-5439-B Version Permalink: http://hdl.handle.net/21.11116/0000-0007-5465-9
Genre: Conference Paper

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Sowmya, K.1, Author
Lagg, Andreas1, Author              
Solanki, Sami K.1, Author              
Castellanos Durán, Juan Sebastian1, Author              
Affiliations:
1Department Sun and Heliosphere, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832289              

Content

show
hide
Free keywords: -
 Abstract: An active region filament in the upper chromosphere is studied using spectropolarimetric data in He i 10830 Å from the GREGOR telescope. A Milne-Eddingon based inversion of the Unno-Rachkovsky equations is used to retrieve the velocity and the magnetic field vector of the region. The plasma velocity reaches supersonic values closer to the feet of the filament barbs and coexist with a slow velocity component. Such supersonic velocities result from the acceleration of the plasma as it drains from the filament spine through the barbs. The line-of-sight magnetic fields have strengths below 200 G in the filament spine and in the filament barbs where fast downflows are located, their strengths range between 100 - 700 G.

Details

show
hide
Language(s): eng - English
 Dates: 2019
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1017/S174392131900992X
 Degree: -

Event

show
hide
Title: Symposium S354 (Solar and Stellar Magnetic Fields: Origins and Manifestations)
Place of Event: -
Start-/End Date: -

Legal Case

show

Project information

show

Source 1

show
hide
Title: Proceedings of the International Astronomical Union: Solar and Stellar Magnetic Fields: Origins and Manifestations
Source Genre: Proceedings
 Creator(s):
Kosovichev, A., Editor
Strassmeier, K., Author
Jardine, M., Author
Affiliations:
-
Publ. Info: -
Pages: - Volume / Issue: 15 Sequence Number: - Start / End Page: 454 - 457 Identifier: -