The Analysis of Emission Lines

Coherent overview of the latest technical data, techniques and applications of one of the most fundamental tools available to astronomers.

What can emission lines tell us about an astrophysical object? A workshop at the Space Telescope Science Institute was dedicated to address just this question – for a host of objects (including planetary nebulae and active galactic nuclei) across a broad range of wavelengths (from the infrared through to gamma-rays). Thirteen review articles from internationally renowned experts are presented in this volume. They provide an edited and coherent overview of the latest technical data, techniques in and applications of the study of emission lines from a variety of objects. Chapters include the theory of radiative transfer, photoionising shocks, and emission lines from stellar winds, as well as useful summaries of abundance determinations, atomic data, and diagnostics for IR, UV, gamma-ray and molecular lines. Together these review articles provide an overview of the analysis of emission lines. They summarise current knowledge, highlight outstanding problems and provide focus for fruitful future research. In this way they provide an excellent introduction for graduate students and reference for professionals.

Contents; Participants; Preface; Emission Lines: 1. Past and Future L. Woltjer; 2. Atomic Data for the Analysis of Emission Lines A. Pradhan and J. Peng; 3. Radiative Transfer D. Hummer; 4. Emission Lines from Winds J. Drew; 5. Photoionizing Shocks M. Dopita; 6. The Lexington Benchmarks for Numerical Simulations of Nebulae G. Ferland et al.; 7. Emission Line Diagnostics H. Netzer; 8. Ultraviolet Spectroscopy R. Dufour; 9. Infrared Emission Lines as Probes of Gaseous Nebulae H. Dinerstein; 10. Molecular Emission Line Diagnostics in Astrophysical Environments A. Dalgarno; 11. Abundance Determinations M. Peimbert; 12. Astrophysical Gamma Ray Emission Lines R. Ramaty and R. Lingenfelter; 13. Summary Remarks V. Trimble.

What can emission lines tell us about an astrophysical object? International experts gathered at a workshop at the Space Telescope Science Institute to address just this question for a host of objects across a broad range of wavelengths. Their review articles are presented here as an edited and coherent overview of the latest technical data, techniques and applications. They provide an excellent introduction for graduate students and reference for professionals.