The Magnetic Network Contribution to the Total Solar Irradiance

Details The Magnetic Network Contribution to the Total Solar Irradiance The Magnetic Network Contribution to the Total Solar Irradiance

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sp21a03e&link_type=abstract

American Geophysical Union, Spring Meeting 2001, abstract #SP21A-03

Physics

1

7524 Magnetic Fields, 7536 Solar Activity Cycle (2162), 7537 Solar And Stellar Variability, 7538 Solar Irradiance

Scientific paper

We studied the brightness contrast and the disk coverage of the solar network pattern in the chromosphere and in the photosphere, analyzing the full-disk near simultaneous CaII K, blue and red continuum images obtained daily with the Rome-PSPT telescope. We also done a detailed account of the temporal variation of these network properties from July 1997 to August 2000 during the ascending phase of the Solar Cycle 23. We used the results obtained to estimate the magnetic network contribution to the total solar irradiance (TSI). We obtained that this contribution is about 10-4 at the activity minimum. Besides, we estimated a change of the network contribution to TSI of order 3x 10-4 over the cycle, by the measured temporal variation of the network properties.

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