Astrophysical: Solar observatories

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    An example of the cancellation of magnetic fields during the decay of an active region

    A case of cancellation of magnetic fields is observed during the decay of a small active region. Three different sources of information were simultaneously used...

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    Comparative Analysis of Image-shift Measurement Algorithms for Solar Shack-Hartmann Wavefront Sensors

    Observations of the Sun provide unique insights into its structure, evolution, and activity, with significant implications for space weather forecasting and...

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    Effect of atmospheric extinction on solar radial velocity measurements

    Effects of differential extinction across the Earth's atmosphere on astronomical photometry are reviewed. Under the same circumstances when a rotating extended...

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    Fried's parameter derived from observations of granulation outside the disk centre

    A new method has recently been developed to obtain the Fried's parameter from observations of granulation outside the disk center, based on the different...

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    Solar Luminosity Oscillation Telescope (SLOT)

    Low degree l=0-2 solar p-modes were detected with the SLOT instruments at Izana and Baja California. The main source of noise for these ground based...

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    Solar luminosity oscillations from two stations and correlation with velocity measurements

    Since 1984 the measurements of a quadruple photometer sited at the Observatorio del Teide (Izana, Tenerife) made it possible to identify the p-mode luminosity...

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    Solar oscillations from two widely separated stations

    Potassium line data from observatories in Hawaii and Spain were used to establish the authenticity of complex solar oscillation signals. Combination of the two...

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    Stray-light measurements at the Observatorio del Teide

    A new procedure to separate the instrumental and atmospheric components of stray light is presented. It is based on the dependence of the aureole's atmospheric...

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    The Teide Observatory

    The site of the solar spectrometer of the International Research on the Interior of the Sun (IRIS) network, installed in December 1989 in the Teide Observatory...