2007年11月1日 · The full sun is scanned across the slit of the spectrograph during about 1 mn. The profile of the H alpha spectral line are recorded with a spectral resolution of 0.025 nm and …

2025年1月14日 · When the Sun is viewed through a spectrograph or a filter that isolates the H-alpha emission, a wealth of new features can be seen. These features include the …

2020年3月24日 · H \ (\alpha \) is one of the most widely used spectral lines to study the solar chromosphere, mostly through the images recorded in and around the line core (Rutten 2007). …

The LHIRES III high resolution spectrograph can be used to produce images of the Sun at any wavelength by allowing the sun to drift across the field of the instrument and building up an …

2009年2月16日 · Using software you extract each image of the H-alpha line and stack them side by side to make an image of the Sun. You can select different bandwidths by selecting …

Most notable among the spectral lines in this category are the Ca II H & K lines for which a significant data-base already exists as obtained at the McMath-Pierce Telescope Facility since …

2023年6月5日 · This paper uses H $\alpha$ data obtained with the CRisp Imaging SpectroPolarimeter instrument on the Swedish 1-m Solar Telescope, and in the transition …

2020年11月26日 · Abstract: The H{\alpha} spectral line is a well-studied absorption line revealing properties of the highly structured and dynamic solar chromosphere. Typical features with …

2018年6月15日 · The light from the Sun is passed through a filter that admits light from the hydrogen alpha spectral line (6562.8 angstroms or 656.28 nanometers) in the red region of the …

Here's a detailed spectrum of the Sun captured with a Sol'Ex spectrograph equipped with a 2400 lines/mm diffraction grating, a 10 µm slit, and a ZWO ASI290MM Mini camera. In total, 52 …