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Astrophysics of the interstellar medium / / Walter J. Maciel ; translated by Margarida Serote Roos
| Astrophysics of the interstellar medium / / Walter J. Maciel ; translated by Margarida Serote Roos |
| Autore | Maciel W. J (Walter Junqueira) |
| Edizione | [1st ed. 2013.] |
| Pubbl/distr/stampa | New York, NY, : Springer, c2013 |
| Descrizione fisica | 1 online resource (268 p.) |
| Disciplina |
523.1/135
523.1135 |
| Soggetto topico |
Interstellar matter
Astrophysics |
| ISBN |
1-299-19717-5
1-4614-3767-9 |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Astrophysics of the Interstellar Medium; Preface; About the Author; Contents; Chapter 1: General Overview of the Interstellar Medium; 1.1 Introduction; 1.2 Density of the Interstellar Medium; 1.3 The Interstellar Zoo; 1.4 Historical Sketch; 1.4.1 Bright Nebulae; 1.4.2 Dark Nebulae; 1.4.3 Diffuse Interstellar Gas; 1.5 The Oort Limit; Exercises; Bibliography; Chapter 2: The Interstellar Radiation Field; 2.1 Introduction; 2.2 Radio-Frequency Integrated Radiation; 2.2.1 Bremsstrahlung Radiation; 2.2.2 Synchrotron Radiation (Magnetobremsstrahlung); 2.2.3 Line Radiation
2.3 Cosmic Background Radiation2.4 Integrated Radiation Field; 2.5 Radiative Transfer; 2.5.1 Radiative Transfer Equation; 2.5.2 Transfer Equation Solution; 2.5.3 Numerical Example: Energy Density; 2.6 High-Energy Radiation; Exercises; Bibliography; Chapter 3: Spectral Line Formation; 3.1 Introduction; 3.2 Thermodynamic Equilibrium Equations; 3.2.1 Maxwellian Velocity Distribution Function; 3.2.2 Boltzmann Equation; 3.2.3 Saha Equation; 3.2.4 The Planck Function; 3.3 Radiative Transfer; 3.4 Einstein Coefficients; 3.4.1 Emission Coefficient; 3.4.2 Absorption Coefficient 3.4.3 Relations Between the Einstein Coefficients3.5 Spectral Line Profile; 3.5.1 Absorption Line Profile; 3.5.2 Doppler Profile; 3.5.3 Lorentz Profile; 3.5.4 Voigt Profile; 3.5.5 Integrated Absorption Cross Section; 3.5.6 Relations Between the Einstein Coefficients and the Oscillator Strength; 3.5.7 Induced Emissions; 3.6 The Source Function; Exercises; Bibliography; Chapter 4: Interstellar Emission and Absorption Lines; 4.1 Introduction; 4.2 Optical Recombination Lines; 4.2.1 Recombination Coefficient; 4.2.2 Recombination Line Analysis; 4.2.3 Results; 4.3 The H 21cm Emission Line 4.3.1 Introduction4.3.2 Brightness Temperature; 4.3.3 H Column Density Calculation; 4.3.4 Results; 4.4 The H 21cm Absorption Line; 4.4.1 Observations; 4.4.2 Results; 4.5 Broad Absorption Lines; 4.5.1 Broad Absorption Lines Intensity: H and H2; 4.5.2 Example: Interstellar Lyman-α Line; 4.5.3 Results; 4.5.4 Lines of Highly Ionized Elements; 4.6 Curve of Growth; 4.7 Narrow Absorption Lines; 4.7.1 Introduction; 4.7.2 Problems in the Analysis of the Curves of Growth; 4.7.3 Empirical Curve of growth; 4.7.4 Interstellar Abundances; Exercises; Bibliography Chapter 5: Excitation in the Interstellar Medium5.1 Introduction; 5.2 Statistical Equilibrium; 5.3 Collisional Excitation; 5.4 Collisional/Radiative Excitation; 5.4.1 The Statistical Equilibrium Equation; 5.4.2 Relation Between Rates gammajk and gammakj; 5.4.3 Collisional Excitation Rate; 5.4.4 Relations Between Cross Sections; 5.4.5 Cross Section and Collision Strength; 5.4.6 Relation Between Coefficients gammakj and Omega(j,k); 5.4.7 Example: O II and O III in Photoionized Nebulae; 5.4.8 Example: H Collisional Excitation in H I Regions; 5.4.9 Other Processes; 5.5 Two-Level Atoms 5.5.1 Deviation Coefficients |
| Record Nr. | UNINA-9910437981703321 |
Maciel W. J (Walter Junqueira)
|
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| New York, NY, : Springer, c2013 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Introduction to stellar structure / / Walter J. Maciel
| Introduction to stellar structure / / Walter J. Maciel |
| Autore | Maciel W. J (Walter Junqueira) |
| Edizione | [1st ed. 2016.] |
| Pubbl/distr/stampa | Cham, Switzerland : , : Springer International Publishing AG, , [1999] |
| Descrizione fisica | 1 online resource (XV, 215 p. 49 illus.) |
| Disciplina | 523.86 |
| Collana | Astronomy and Planetary Sciences |
| Soggetto topico |
Stars - Evolution
Stars - Structure |
| ISBN | 3-319-16142-3 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto | Physical Properties of the Stars -- Physical Conditions in the Stellar Interior -- The Electron Gas -- The Photon Gas -- Adiabatic Processes in the Stellar Interior -- Polytropes -- Radiative Equilibrium -- Opacity -- Electron Conduction -- Convection -- Thermonuclear Reactions -- Energy Production -- Calculation of the Stellar Structure -- Appendix A: Constants and Units -- Solutions. |
| Record Nr. | UNINA-9910483471903321 |
|
Maciel W. J (Walter Junqueira)
|
||
| Cham, Switzerland : , : Springer International Publishing AG, , [1999] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||