Molecules in the Stellar Environment de Uffe G. Jorgensen

Molecules in the Stellar Environment: Proceedings of IAU Colloquium No. 146 Held at Copenhagen, Denmark, May 24–29, 1993: Lecture Notes in Physics, cartea 428

Uffe G. Jorgensen

en Limba Engleză Paperback – 20 noi 2013

This volume gives and excellent survey of our presentknowledge of molecularprocesses in stellar andproto-stellar objects. It reviews molecular physicsinstellar environments and is intended to bridge the gapbetween astrophysicists and chemists. The topics range fromthe theoretical to the computational and includeobservational data. Among the topics treated are questionsof stellar evolution, the determination of physicalpropertiesand structures , and the chemical composition ofstellar protospheres. Opacity is studied in the context ofvarious types of stellar and proto-stellar objects.

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Specificații

ISBN-13: 9783662139769
ISBN-10: 3662139766
Pagini: 456
Ilustrații: VIII, 444 p. 25 illus.
Dimensiuni: 155 x 235 x 24 mm
Greutate: 0.64 kg
Ediția:Softcover reprint of the original 1st ed. 1994
Editura: Springer Berlin, Heidelberg
Colecția Springer
Seria Lecture Notes in Physics

Locul publicării:Berlin, Heidelberg, Germany

Cuprins

Stellar photospheres and molecules — A view from the bridge.- Dominating molecules in the photospheres of cool stars.- Opacity problems in cool low mass stars.- Molecular opacities in cool dwarf stars.- White dwarfs.- Astrophysical applications of approximate methods for molecular opacities — from stars to substellar brown dwarfs.- Infrared spectroscopy and molecules in circumstellar envelopes.- Molecular abundances in the envelopes around evolved stars.- Polvynes and polycyclic aromatic molecules in c-rich circumstellar envelopes.- Improvements in the computation of grain opacity.- From molecules to grains.- Opacity problems in protostellar objects.- Molecules in the sun and molecular data.- Pressure-induced molecular absorption in stellar atmospheres.- Continuous molecular opacities and photodissociation.- Effects of non-local thermodynamic equilibrium (NLTE) on molecular opacities.- Dissociation energies and partition functions of small molecules.- Atomic opacities.- Computation of the absorption coefficient for diatomic molecules.- Computation of opacities for diatomic molecules.- Computation of frequencies and linestrengths for triatomic molecules of astronomical interest.- Computational approaches to determining accurate band strengths.- Ab initio calculations of absorption coefficients of small carbon hydride molecules.- The RASSCF, RASSI, and CASPT2 methods used on small molecules of astrophysical interest.- The MORBID method.- Experimental measurement of weak band intensities.- Oscillator strengths and excited state lifetimes in metallic hydrides and oxides.- The berkeley program on molecules of astrophysical interest.- Production, detection and study in the infrared of unstable molecules and radicals.- Laboratory millimeter wave spectroscopy of smallreactive species.- Table of contents for “Poster session proceedings of IAU Colloquium 146: Molecular opacities in the stellar environment”.