Continuous Solar Observations from the Ground—Assessing Duty Cycle from GONG Observations

Seismology of solar spicules based on Hinode/SOT observations

High duty cycle and continuous terahertz emission from germanium

In the far-infrared wavelength or terahertz frequency range ~1–10 THz! there are a wide variety of potential applications for compact and tunable lasers. High resolution spectroscopy is relevant to such diverse fields as astronomy, biochemistry, and physical chemistry. Objects of interest include star-forming regions in the universe, heavy ligands in biomolecules which vibrate and rotate with a...

The Magnetic Field of the Solar Corona from Pulsar Observations

Abstract. We present a novel experiment with the capacity to independently measure both the electron density and the magnetic field of the solar corona. We achieve this through measurement of the excess Faraday rotation due to propagation of the polarised emission from a number of pulsars through the magnetic field of the solar corona. This method yields independent measures of the integrated e...

Gallex Solar Neutrino Observations: Results from the Total Data Set

With the successful completion of Gallex after more than six years of operation and the smooth transition to Gno a milestone in radiochemical solar neutrino recording has been reached. The Gallex solar neutrino result, 76 8 SNU, being signiicantly below all solar model predictions, connrms the long standing solar neutrino puzzle and constitutes an indication for non-standard neutrino properties...

Slow Poles and Shearing Flows from Helioseismic Observations with Mdi and Gong Spanning a Year

We invert high-resolution rotational splitting data (up to degree l ≈ 250) from GONG and SOI-MDI. The first 4 months of MDI data uncovered several new features in the rotation of the solar convective envelope: surface and subsurface zonal bands corresponding to the so-called torsional oscillations, superimposed on the overall smooth latitudinal surface rotation; a drop in the near-polar surface...