Spectroscopic observations of G-band bright points

Details Spectroscopic observations of G-band bright points Spectroscopic observations of G-band bright points

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.506..397l&link_type=abstract

In: Solar variability: from core to outer frontiers. The 10th European Solar Physics Meeting, 9 - 14 September 2002, Prague, Cze

Physics

Photosphere, Magnetic Elements

Scientific paper

Imaging in the G-band is commonly used to investigate the morphological properties of small magnetic field concentrations in the solar photosphere. However the physical background, explaining the brightness of these structures, has remained unclear. Our observations add the spectroscopic point of view to this discussion. The observations at high spatial resolution are obtained with the horizontal spectrograph at the Dunn Solar Telescope of the National Solar Observatory, USA. We scanned across a pore within an active region and took spectra in three different wavelength regions (430 nm, 526 nm, 569 nm) simultaneously to G-band and broadband continuum images. We present the results and discuss the spectroscopic bright point properties in comparison to former observations and synthetic data.

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