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arxiv: astro-ph/0404594 · v1 · submitted 2004-04-30 · 🌌 astro-ph

Gamma-Ray Line Observations with RHESSI

classification 🌌 astro-ph
keywords linesrhessiannihilationgalaxygamma-rayobservationspositronsolar
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The Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) has been observing gamma-ray lines from the Sun and the Galaxy since its launch in February 2002. Here I summarize the status of RHESSI observations of solar lines (nuclear de-excitation, neutron capture, and positron annihilation), the lines of $^{26}$Al and $^{60}$Fe from the inner Galaxy, and the search for positron annihilation in novae.

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