EVE/ESP and the Neupert Effect

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Nugget
Number:	151
1st Author:	H. Hudson
2nd Author:
Published:	9 May 2011
Next Nugget:	TBD
Previous Nugget:	Decimetric Pulsations
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Contents 1 Introduction 2 ESP data 3 How does GOES compare? 4 The Neupert Effect 5 Conclusions

Introduction

This Nugget follows a [previous Nugget] introducing [EVE] spectroscopy and its applications. Here we will look at the [ESP] component of EVE; this is a broad-band photometric observation of solar soft X-rays; it is thus similar to the standard [GOES] photometry, but better in some ways. In illustrating these data we refer to the flare SOL2011-02-24, a limb event with white-light continuum emission (as in SOL2010-06-12, the subject of our previous Nugget]. Because EVE (and its component ESP) observe in the [extreme ultraviolet], where opacities are large, a limb event will systematically differ from a disk event in its morphology - not only because of [limb darkening], but also because of absorption by structures intervening on the line of sight.

ESP data

How does GOES compare?

The Neupert Effect

Conclusions