ebook ebooks e-book e-books downloaden bei MyEbooks.ch downloaden

Starlight An Introduction to Stellar Physics for Amateurs

:	Keith Robinson
:	Starlight An Introduction to Stellar Physics for Amateurs
:	Springer-Verlag
:	9781441907080
:	1
:	CHF 42.70
:

:	Astronomie: Allgemeines, Nachschlagewerke
:	English

:	273
:	Wasserzeichen/DRM
:	PC/MAC/eReader/Tablet
:	PDF

This is a book about the physics of stars and starlight. The story of starlight is truly fascinating. Astronomers analyze and interpret the light from stars using photometry and spectroscopy, then inspirational detective work combines with the laws of physics to reveal the temperatures, masses, luminosities and outer structure of these far away points of light. The laws of physics themselves enable us to journey to the very center of a star and to understand its inner structure and source of energy!

Starlight provides an in-depth study of stellar astrophysics that requires only basic high school mathematics and physics, making it accessible to all amateur astronomers. Starlight teaches amateur astronomers about the physics of stars and starlight in a friendly, easy-to-read way. The reader will take away a profoundly deeper understanding of this truly fascinating subject - and find his practical observations more rewarding and fulfilling as a result.

	Acknowledgements	5
	Contents	6
	About the Author	7
	A River of Starlight	8
	Starlight by Numbers	13
	Large Numbers and Small Numbers	14
	The Rule of Indices	15
	The Rule of Indices for All Indices	17
	Working with Powers of Ten	18
	Scientific Notation	19
	Star Distances by Numbers	22
	Key Points	27
	From Light to Starlight	29
	Let There Be (an Idea About) Light	30
	Natures Color Palette The Electromagnetic Spectrum	36
	How to Measure the Wavelength of Light	40
	The Spectrum, the Whole Spectrum, and Nothing but the Spectrum	43
	A Brief Note on the Spectroscope	45
	Light and Energy	46
	Let There Be Another Idea About Light	48
	The Parable of the Two Tables Blackbody Radiation	52
	The Blackbody Spectrum	57
	The Parable of the Blackbody and the Star	60
	Key Points	62
	Space -- The Great Radiation Field	64
	Rivers of Energy	64
	Measuring the Radiation Field	65
	Sunlight Is Intense But Starlight Is Not	70
	How Many Light Bulbs Must You Screw in to Make a Star?	72
	From Flux to Flux Ratio to Magnitude	78
	How to Calculate Magnitudes	82
	Fixing the Magnitude Scale	84
	Absolute Magnitude A Measure of Stellar Luminosity	86
	Key Points	89
	A Multitude of Magnitudes for the Colors of Starlight	91
	Blackbody Stars	64
	From Theories of Physics to Astronomical Observations	65
	Star Partners Color and Magnitude	70
	Color and Blackbody Temperature	72
	Measuring Effective Temperatures for Real Stars	78
	Yet Another Magnitude	82
	Sorting Out Stellar Spectra	84
	The HertzsprungRussell Diagram	86
	Using the HR Diagram Template	89
	A Different Kind of HR Diagram	117
	Conclusion	118
	Key Points	119
	The Photons Must Get Through -- Radiative Transfer	122
	Absorption The Photons Get Taken Out	64
	The Photon Gets a Second Chance (and Maybe More) Scattering	65
	New Photons for Old Emission	70
	Symbiotic Nebulae An Illustration of Optical Depth in Action	72
	Key Points	78
	First Look Inside a Star -- The Atmosphere	147
	Simple Radiative Transfer in the Photosphere	64
	The Chromosphere and the Corona	65
	Yet Another Kind of HR Diagram	70
	A Photosphere Full of Hydrogen Atoms	72
	The Hydrogen Absorption Lines	78
	The Ups and Downs of a Hydrogen Atom	82
	The Ups and Downs of a Hydrogen Atom in a Photosphere	84
	The Temperature of Vega	86
	Return to the ColorColor Diagram	89
	Model Atmospheres for Stars	117
	Key Points	118
	Deep Inside a Star	176
	Hot Gas The Basics	64
	From a Cylinder of Gas to the Structure of a Star	65
	The Principles of Stellar Structure	70
	From a Cylinder of Gas to Stellar Pulsation	72
	Cepheid Variable Stars The Other Story	78
	How to Make a Star Pulsate	82
	Yet Another Gas Cylinder Experiment	84
	Exciting Stellar Pulsation	86
	The Right Kind of Gas in the Right Kind of Star	89
	Details, Details	117
	From a Cylinder of Gas to a Red Giant Star	118
	Convection in Stars	119
	The Stellar Core Source of the River of Starlight	207
	Nuclear Fusion in Stars The Details	210
	The CNO Cycle	213
	Key Points	214
	In the Space Between Stars	216
	Winds from the Stars	64
	Stardust	65
	When the Galaxy Shrank	70
	Space Dust	72
	The Dimming of Starlight	78
	Through the Atmosphere	82
	Key Points	84
	A Star Story 0 10 Billion Years in the Making	235
	The Middle of the Story Life on the Main Sequence	235
	The Beginning of the Story From Atoms to Stars	239
	The End of the Story Life After the Main Sequence	245
	Stellar Evolution in Action	253
	Old Stars, Young Stars, and New Stars from Old	257
	The Legacy of Starlight	259
	Conclusion	260
	Key Points	262
	Appendix 1: The Greek Alphabet	264
	Appendix 2: Astronomical and Physical Units and Constants	265
	Important Units	266
	Constants	267
	Physical Constants	267
	Astronomical Constants	267
	Appendix 3: The Doppler Effect	268
	Index	270