2010/09/06 by J. Hirzberger, Hirzberger, Johann, A. Feller +31
Earth and Planetary Sciences · Engineering · Physics and Astronomy · #Atmospheric Ozone and Climate #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #Photocathodes and Microchannel Plates #Solar and Stellar Astrophysics (astro-ph.SR)
paper · pdf · doi:10.48550/arxiv.1009.1050
openalex publication_date 2010/09/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We present high-resolution images of the Sun in the near ultraviolet spectral range between 214 nm and 397 nm as obtained from the first science flight of the 1-m Sunrise balloon-borne solar telescope. The quiet-Sun rms intensity contrasts found in this wavelength range are among the highest values ever obtained for quiet-Sun solar surface structures - up to 32.8% at a wavelength of 214 nm. We compare with theoretical intensity contrasts obtained from numerical magneto-hydrodynamic simulations. For 388 nm and 312 nm the observations agree well with the numerical simulations whereas at shorter wavelengths discrepancies between observed and simulated contrasts remain.