Searching Solar X-ray Observations for Axions
Searching Solar X-ray Observations for Axions
Searching Solar X-ray Observations for Axions
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• Observe flares (large to<br />
micro) in SXR and HXR<br />
– SXR: thermal brems<br />
continuum and spectral<br />
lines<br />
– HXR: non‐thermal e ‐<br />
brems continuum<br />
• <strong>Solar</strong> Max: Active Regions<br />
during solar max easily<br />
observed in SXR, HXR difficult<br />
• <strong>Solar</strong> Min: Quiet Sun/X‐<strong>ray</strong><br />
Bright Points easily observed<br />
in SXR, HXR difficult<br />
– See RHESSI Quiet Sun work<br />
Hannah–Durham, July 2009<br />
<strong>Solar</strong> X‐<strong>ray</strong> Spectra<br />
• Un<strong>for</strong>tunately <strong>for</strong> axions the Sun is bright in X‐<strong>ray</strong>s from a variety of<br />
magnetic phenomena<br />
Modified from Churazov et al. 2008 MNRAS<br />
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