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Title: QUIET-SUN INTENSITY CONTRASTS IN THE NEAR-ULTRAVIOLET AS MEASURED FROM SUNRISE

Abstract

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 the rms contrasts obtained from the observational data with theoretical intensity contrasts obtained from numerical magnetohydrodynamic 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.

Authors:
; ; ; ; ; ; ;  [1]; ;  [2]; ; ;  [3]; ;  [4];  [5]
  1. Max-Planck-Institut fuer Sonnensystemforschung, D-37434 Katlenburg-Lindau (Germany)
  2. Astrophysics Group, Blackett Laboratory, Imperial College, London SW7 2AZ (United Kingdom)
  3. Kiepenheuer-Institut fuer Sonnenphysik, D-79104 Freiburg (Germany)
  4. Instituto de Astrofisica de Canarias, E-38200 La Laguna (Spain)
  5. High Altitude Observatory, National Center for Atmospheric Research, Boulder, CO 80307 (United States)
Publication Date:
OSTI Identifier:
21452695
Resource Type:
Journal Article
Journal Name:
Astrophysical Journal Letters
Additional Journal Information:
Journal Volume: 723; Journal Issue: 2; Other Information: DOI: 10.1088/2041-8205/723/2/L154; Journal ID: ISSN 2041-8205
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; COMPUTERIZED SIMULATION; SOLAR GRANULATION; SUN; TELESCOPES; ULTRAVIOLET RADIATION; WAVELENGTHS; ELECTROMAGNETIC RADIATION; MAIN SEQUENCE STARS; RADIATIONS; SIMULATION; SOLAR ACTIVITY; STARS; STELLAR ACTIVITY

Citation Formats

Hirzberger, J, Feller, A, Riethmueller, T L, Schuessler, M, Borrero, J M, Gandorfer, A, Solanki, S K, Barthol, P, Afram, N, Unruh, Y C, Berdyugina, S V, Berkefeld, T, Schmidt, W, Bonet, J A, MartInez Pillet, V, Knoelker, M, and Title, A. M., E-mail: hirzberger@mps.mpg.d. QUIET-SUN INTENSITY CONTRASTS IN THE NEAR-ULTRAVIOLET AS MEASURED FROM SUNRISE. United States: N. p., 2010. Web. doi:10.1088/2041-8205/723/2/L154.
Hirzberger, J, Feller, A, Riethmueller, T L, Schuessler, M, Borrero, J M, Gandorfer, A, Solanki, S K, Barthol, P, Afram, N, Unruh, Y C, Berdyugina, S V, Berkefeld, T, Schmidt, W, Bonet, J A, MartInez Pillet, V, Knoelker, M, & Title, A. M., E-mail: hirzberger@mps.mpg.d. QUIET-SUN INTENSITY CONTRASTS IN THE NEAR-ULTRAVIOLET AS MEASURED FROM SUNRISE. United States. https://doi.org/10.1088/2041-8205/723/2/L154
Hirzberger, J, Feller, A, Riethmueller, T L, Schuessler, M, Borrero, J M, Gandorfer, A, Solanki, S K, Barthol, P, Afram, N, Unruh, Y C, Berdyugina, S V, Berkefeld, T, Schmidt, W, Bonet, J A, MartInez Pillet, V, Knoelker, M, and Title, A. M., E-mail: hirzberger@mps.mpg.d. 2010. "QUIET-SUN INTENSITY CONTRASTS IN THE NEAR-ULTRAVIOLET AS MEASURED FROM SUNRISE". United States. https://doi.org/10.1088/2041-8205/723/2/L154.
@article{osti_21452695,
title = {QUIET-SUN INTENSITY CONTRASTS IN THE NEAR-ULTRAVIOLET AS MEASURED FROM SUNRISE},
author = {Hirzberger, J and Feller, A and Riethmueller, T L and Schuessler, M and Borrero, J M and Gandorfer, A and Solanki, S K and Barthol, P and Afram, N and Unruh, Y C and Berdyugina, S V and Berkefeld, T and Schmidt, W and Bonet, J A and MartInez Pillet, V and Knoelker, M and Title, A. M., E-mail: hirzberger@mps.mpg.d},
abstractNote = {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 the rms contrasts obtained from the observational data with theoretical intensity contrasts obtained from numerical magnetohydrodynamic 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.},
doi = {10.1088/2041-8205/723/2/L154},
url = {https://www.osti.gov/biblio/21452695}, journal = {Astrophysical Journal Letters},
issn = {2041-8205},
number = 2,
volume = 723,
place = {United States},
year = {Wed Nov 10 00:00:00 EST 2010},
month = {Wed Nov 10 00:00:00 EST 2010}
}