Talk:Do solar decimetric spikes originate in coronal X-ray sources?

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It's been pointed out that the Publisher (me) should not have been surprised to see a mismatch between the decimetric spikes and hard X-ray sources. This is documented in several places in the literature, e.g. in the excellent paper by Khan and Aurass (2009). And I remember my delight at noting that the nice 3D reconstructions by Paesold et al. (2001) confounded the idea that the radio sources would be located at the "reconnection" cusp.

--Hhudson 11:53, 23 June 2009 (UTC)

Dear Hugh, in our recent nugget and paper, we asked a simple question: Do solar decimetric spikes originate in coronal hard X-ray sources? And the answer is: No.

But I am not so sure about excluding a cusp. A cusp radially above the coronal X-ray source can indeed be excluded also in all the previous studies of spike positions that I know (Krucker et al. 1997, Paesold et al 2001; Benz et al. 2002; Khan and Aurass 2006; Battaglia and Benz 2009). Cusps at skew angles to the vertical, however, are still conceivable.

I think we should be surprised how much more tangled the magnetic field in the corona appears to be and how little we know about it. And I am still surprised how a flare can accelerate a huge number of non-thermal electrons presumably near the coronal source that leave no signature in coherent radio emission.

--Arnold Benz Arnold