Titlebook: Comets in the Post-Halley Era; In Part Based on Rev R. L. Newburn,M. Neugebauer,J. Rahe Book 1991 Springer Science+Business Media Dordrecht

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Kian Preston-Suni,Breena R. Taira closely the cometary outgassing phenomena. For the same comet, derived nongravitational parameters can differ widely, depending upon which model is used to fit the astrometric data. The uncertainties in the data and in the nongravitational acceleration model prevent realistic extrapolations of thes

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Leena Barshikar,Satyajit Majumdarortant, and that for Comet Wilson, outgassing from cometesimals ejected from the nucleus may be significant. We further show that asymmetric line profiles are more common than previously thought. Lengthening integration times and lowering the velocity resolution results in a smooth, round shape for

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0067-0057 efor use in graduate level courses. All astronomers and geophysicistsinterested in comets will find very useful and well-presentedinformation in this book. .978-94-010-5494-2978-94-011-3378-4Series ISSN 0067-0057 Series E-ISSN 2214-7985

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Infrared Techniques for Comet Observationsa technological revolution, with the development of sensitive 2-dimensional arrays leading to infrared cameras and spectrometers with vastly improved sensitivity and resolution. The Halley campaign gave us tantalizing first glimpses of the comet science possible with this new technology, evidenced,

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