The Spectrum of Fluctuations across Penumbral Filaments

Details The Spectrum of Fluctuations across Penumbral Filaments The Spectrum of Fluctuations across Penumbral Filaments

Oct 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998apj...505.1010s&link_type=abstract

The Astrophysical Journal, Volume 505, Issue 2, pp. 1010-1017.

Astronomy and Astrophysics

Astronomy

21

Sun: Atmosphere, Sun: Magnetic Fields, Sun: Sunspots

Scientific paper

We estimate the typical spectrum of spatial fluctuations of intensity due to the penumbral filaments. High angular resolution continuum images are used (cut-off frequencies equivalent to 0.28" wavelength of about 5257 Å). The amplitude of the observed spectra follows the modulation transfer function of our optical system. In other words, the spectrum of real penumbral fluctuations seems to be flat up to the higher observable spatial frequency. We expect it to continue far beyond the artificial instrumental cutoff, which implies that the structure of the penumbra remains unresolved to the present solar observations.

Affiliated with

Also associated with

No associations

Rating

The Spectrum of Fluctuations across Penumbral Filaments does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Spectrum of Fluctuations across Penumbral Filaments, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Spectrum of Fluctuations across Penumbral Filaments will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1720126