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Hydrogen Lyα Intensity Oscillations Observed by the Solar and Heliospheric Observatory Ultraviolet Coronagraph Spectrometer

  • Authors: H. Morgan, S. Rifai Habbal, and X. Li

Morgan, Habbal, & Li 2004 The Astrophysical Journal 605 521.

  • Provider: AAS Journals

Caption: Fig. 1.

Left: Composite LASCO C2 and EIT image from June 21. Solid white lines indicate positions of the UVCS slit. Dotted white lines indicate latitude. Right: Lyα intensity interpolated into a contour plot of the observed region. Streamer, quiet‐Sun, and coronal‐hole regions are labeled "S," "Q," and "C" and are bounded by the white lines. The dashed lines are lines of constant latitude. Higher intensities have lighter shading. The intensity contours start at ﹩\mathrm{\log}_{10}11.3﹩ photons s−1 Ω−1 cm−2 Å−1 at the lowest height and decrease by ﹩\mathrm{\log}_{10}0.065﹩ photons s−1 Ω−1 cm−2 Å−1.

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