The authors present ISOLWS spectra of 5 giant H II region in the spiral galaxy M101. The data, not yet fully reduced, were taken by using the medium resolution line AOT LWSO2, with wavelengths centered at the [O III] lines at 51.7 and 88.3 microns and the [N III] at 57.3 microns. These observations form part of an ISO guaranteed time project aimed

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This book presents a comprehensive guide to the impact of the internet on professional astronomy. Each chapter deals with a range of the electromagnetic spectrum, with authors first discussing the corresponding problems for each range, particularly those that can be treated by access to very large databases. They then describe how data and

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Observations and theory both point out that the magnetic photosphere is not smooth but irregular at optically-thin scales. The relevance of these irregularities for a proper magnetic field diagnostics depends upon the not yet known structure of the magnetic field fluctuations (and, of course, on the purpose of our determination). Sánchez Almeida &

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