A Search for Soft X-Ray Auroras on Earth

Details A Search for Soft X-Ray Auroras on Earth A Search for Soft X-Ray Auroras on Earth

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003cxo..prop.1369e&link_type=abstract

Chandra Proposal ID #05100445

Physics

Chandra Proposal Id #05100445

Scientific paper

Chandra HRC-I observations of Jupiter in Dec 2000 revealed that jovian auroral x-ray emissions originate from a small 'hot' spot. The location of the hot spot near the magnetic pole implies a particle source region near Jupiter's magnetopause, and entry of heavy solar wind ions due to high-latitude reconnection is now a viable explanation for the soft x-ray emissions. The identical process should work at Earth as well. Although hard x-ray emissions from electron bremsstrahlung are known in the terrestrial aurora, there have been no searches for emissions less than 2 keV. We propose here simple slews observations by HRC-I across the auroral region to look for Earth's soft x-ray aurora. The proposed method has been shown to be feasible in a 1 ks DDT observation.

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