No. 163, X-ray and H-alpha Flare Impulses, by K. Radziszewski and P. Rudawy: Strikingly precise correlations of H-alpha kernels and hard X- ray bursts. See

http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/X-ray_and_H-alpha_Flare_...

Older Nuggets are available at http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets (the current series, 2008-present), and at http://sprg.ssl.berkeley.edu/~tohban/nuggets/ (the original series, 2005-2008).

We publish these at roughly two-week intervals and welcome contributions, which should be related, at least loosely, to RHESSI science.