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Solar Physics

, Volume 282, Issue 2, pp 443–451 | Cite as

A Small Pore Observed with a 1.6 m Telescope

  • A. Anđić
Article
  • 329 Downloads

Abstract

A small pore was observed with the New Solar Telescope of 1.6 m aperture at Big Bear Solar Observatory. At a wavelength of 705.68 nm, a diffraction limit of 0.09″ was reached and approximately 700 small structures were analyzed. The achieved high resolution has revealed details about the dynamics of small structures in and around the pore. The small structures either reside in the pore, enter the pore from the vicinity, or dip in and out of the pore. Their sizes are similar, ≈ 0.2″, but their observed oscillations do not show power peaks at the same periods. Horizontal plasma flows were suppressed in the pore by 38 % for average velocities, and 65 % for maximum velocities, compared to the quiet Sun.

Keywords

Photosphere 

Notes

Acknowledgements

The author thanks J. Varsik and R. Fear for their help during the observations.

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Copyright information

© Springer Science+Business Media Dordrecht 2012

Authors and Affiliations

  1. 1.Department of AstronomyNew Mexico State UniversityLas CrucesUSA
  2. 2.Big Bear Solar ObservatoryBig Bear CityUSA

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