English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Hi-C 2.1 Observations of Jetlet-like Events at Edges of Solar Magnetic Network Lanes

Panesar, N. K., Sterling, A. C., Moore, R. L., Winebarger, A. R., Tiwari, S. K., Savage, S. L., et al. (2019). Hi-C 2.1 Observations of Jetlet-like Events at Edges of Solar Magnetic Network Lanes. Astrophysical Journal, Letters, 887(1): L8. doi:10.3847/2041-8213/ab594a.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0006-6875-2 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-6876-1
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Panesar, Navdeep K., Author
Sterling, Alphonse C., Author
Moore, Ronald L., Author
Winebarger, Amy R., Author
Tiwari, Sanjiv K., Author
Savage, Sabrina L., Author
Golub, Leon E., Author
Rachmeler, Laurel A., Author
Kobayashi, Ken, Author
Brooks, David H., Author
Cirtain, Jonathan W., Author
Pontieu, Bart De, Author
McKenzie, David E., Author
Morton, Richard J., Author
Peter, Hardi1, Author              
Testa, Paola, Author
Walsh, Robert W., Author
Warren, Harry P., Author
Affiliations:
1Department Sun and Heliosphere, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832289              

Content

show
hide
Free keywords: -
 Abstract: We present high-resolution, high-cadence observations of six, fine-scale, on-disk jet-like events observed by the High-resolution Coronal Imager 2.1 (Hi-C 2.1) during its sounding-rocket flight. We combine the Hi-C 2.1 images with images from the Solar Dynamics Observatory (SDO)/Atmospheric Imaging Assembly (AIA) and the Interface Region Imaging Spectrograph (IRIS), and investigate each event's magnetic setting with co-aligned line-of-sight magnetograms from the SDO/Helioseismic and Magnetic Imager (HMI). We find that (i) all six events are jetlet-like (having apparent properties of jetlets), (ii) all six are rooted at edges of magnetic network lanes, (iii) four of the jetlet-like events stem from sites of flux cancelation between majority-polarity network flux and merging minority-polarity flux, and (iv) four of the jetlet-like events show brightenings at their bases reminiscent of the base brightenings in coronal jets. The average spire length of the six jetlet-like events (9000 ± 3000 km) is three times shorter than that for IRIS jetlets (27,000 ± 8000 km). While not ruling out other generation mechanisms, the observations suggest that at least four of these events may be miniature versions of both larger-scale coronal jets that are driven by minifilament eruptions and still-larger-scale solar eruptions that are driven by filament eruptions. Therefore, we propose that our Hi-C events are driven by the eruption of a tiny sheared-field flux rope, and that the flux rope field is built and triggered to erupt by flux cancelation.

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: 10.3847/2041-8213/ab594a
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Astrophysical Journal, Letters
  Other : ApJL
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Bristol, UK : Institute of Physics Publishing (IOP)
Pages: - Volume / Issue: 887 (1) Sequence Number: L8 Start / End Page: - Identifier: ISSN: 0004-637X
CoNE: https://pure.mpg.de/cone/journals/resource/954922828215_1