Physics – Optics
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sp41c07b&link_type=abstract
American Geophysical Union, Spring Meeting 2001, abstract #SP41C-07
Physics
Optics
7507 Chromosphere, 7524 Magnetic Fields, 7529 Photosphere, 7594 Instruments And Techniques
Scientific paper
We present high angular resolution measurements and analysis of a sunspot penumbra using imaging spectroscopy with the NSO Dual-FP system (DPF), simultaneous Hα and G-Band measurements. These measurements were made using the NSO Low-order Adaptive Optics system at the Richard B. Dunn Solar Telescope. The DFP was used to acquire the spectral images using the FeI 5576 Å Zeeman insensitive spectral line to map the upper photospheric layers. The dynamic signatures of the penumbra are analyzed using the Doppler maps of the sunspot. We present FLOW-LESS maps of the sunspot to examine the thermal structure of the sunspot. Using spectral line asymmetries, we probe the dynamical structure of the penumbrae at different heights. We also examine the structural properties of the penumbra using high-resolution high-speed images in Hα , and the G-band. We discuss the impacts of these measurements on the current models of sunspot penumbrae.
Balasubramaniam K. S.
Sigwarth Michael
No associations
LandOfFree
Structure and Dynamics of a Sunspot Penumbra using Imaging Spectroscopy 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 Structure and Dynamics of a Sunspot Penumbra using Imaging Spectroscopy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Structure and Dynamics of a Sunspot Penumbra using Imaging Spectroscopy will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1279334