Astrophysical: Solar cycle

  • Publication
    Background solar irradiance spectrum at high and low phases of the solar activity cycle

    Two data series of disk integrated solar irradiance, taken by the Variability of the solar IRradiance and Gravity Oscillations (VIRGO) experiment on board the...

  • Publication
    Background solar velocity spectrum at high and low phases of solar activity cycle

    Using GOLF/SOHO data a detailed analysis of the solar background spectrum has been performed at high and low phases of solar activity cycle. The analysis...

  • Publication
    Methodology for Predicting the Probability Distribution of the Amplitude of Solar Cycle 25

    A number of precursor-type methods for solar-cycle prediction are based on the use of regression models and confidence-level estimates. A drawback of these...

  • Publication
    POLAR investigation of the Sun—POLARIS

    The POLAR Investigation of the Sun (POLARIS) mission uses a combination of a gravity assist and solar sail propulsion to place a spacecraft in a 0.48 AU...

  • Publication
    Signature of the solar cycle in the low degree p-modes using Mark-I

    High quality observations of the low degree p-modes exist for almost two complete solar cycles using the solar spectrophotometer Mark-I, located and operating...

  • Publication
    Solar-cycle and Latitude Variations in the Internetwork Magnetism

    The importance of the quiet-Sun magnetism is that it is always there to a greater or lesser extent, being a constant provider of energy, independently of the...

  • Publication
    The p-mode spectrum measured in intensity: from 1996 to 2000

    VIRGO-SPM is a helioseismic instrument on board SOHO that observe the disk-integrated sunlight irradiance at three different colours (red, green and blue). In...