Dear friends, please find at the following site:
http://arxiv.org/abs/0909.2529
the work "Comparison of Hinode/XRT and RHESSI detection of hot plasma in the non-flaring solar corona" by F. Reale http://arxiv.org/find/astro-ph/1/au:+Reale_F/0/1/0/all/0/1, J. M. McTiernan http://arxiv.org/find/astro-ph/1/au:+McTiernan_J/0/1/0/all/0/1, and P. Testa http://arxiv.org/find/astro-ph/1/au:+Testa_P/0/1/0/all/0/1 accepted for publication on ApJ Letters. The abstract is appended. Thank you for your attention Best regards Fabio Reale
Comparison of Hinode/XRT and RHESSI detection of hot plasma in the non-flaring solar corona
Authors: F. Reale http://arxiv.org/find/astro-ph/1/au:+Reale_F/0/1/0/all/0/1, J. M. McTiernan http://arxiv.org/find/astro-ph/1/au:+McTiernan_J/0/1/0/all/0/1, P. Testa http://arxiv.org/find/astro-ph/1/au:+Testa_P/0/1/0/all/0/1
Abstract: We compare observations of the non-flaring solar corona made simultaneously with Hinode/XRT and with RHESSI. The analyzed corona is dominated by a single active region on 12 November 2006. The comparison is made on emission measures. We derive emission measure distributions vs temperature of the entire active region from multifilter XRT data. We check the compatibility with the total emission measure values estimated from the flux measured with RHESSI if the emission come from isothermal plasma. We find that RHESSI and XRT data analyses consistently point to the presence of a minor emission measure component peaking at log T ~ 6.8-6.9. The discrepancy between XRT and RHESSI results is within a factor of a few and indicates an acceptable level of cross-consistency.