441![](https://www.pdfsearch.io/img/211db76f1ae4001e0cdbc95ae3420b47.jpg) | Add to Reading ListSource URL: ixo.gsfc.nasa.govLanguage: English - Date: 2009-02-23 15:58:54
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442![](https://www.pdfsearch.io/img/e268728149e20c7b82603f728d5ac6b0.jpg) | Add to Reading ListSource URL: ixo.gsfc.nasa.govLanguage: English - Date: 2009-02-23 09:46:54
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443![Untitled Untitled](https://www.pdfsearch.io/img/e28e5ecba5e87c9d3434bbdb66320cd7.jpg) | Add to Reading ListSource URL: aas.aanda.orgLanguage: English |
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444![](https://www.pdfsearch.io/img/1f1ff35879094b647ebc22a5b90433b1.jpg) | Add to Reading ListSource URL: chandra.harvard.eduLanguage: English - Date: 2009-03-19 10:42:29
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445![](https://www.pdfsearch.io/img/526892f670d60f9b0740f25f51371758.jpg) | Add to Reading ListSource URL: pasj.asj.or.jpLanguage: English - Date: 2011-11-13 19:54:58
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446![](https://www.pdfsearch.io/img/fd3b81003a44cba056d7694fd92c14ec.jpg) | Add to Reading ListSource URL: arxiv.orgLanguage: English - Date: 2012-03-04 20:07:51
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