射電天文學(xué). 觀測方法 分冊目錄
CHAPTER 1  Introductory Material  射電天文學(xué)基礎(chǔ)
1.1  BRIEF HISTORY OF RADIO ASTRONOMY  射電天文學(xué)簡史
1.2  SOME FUNDAMENTALS OF RADIO WAVES  射電波的一些基本原理
1.2.1  Electromagnetic Radiation  電磁輻射
1.2.2  Spectroscopy  頻譜學(xué)
1.3  FINDING OUR WAY IN THE SKY  在天空中定位
1.3.1  Sky Coordinate System: Right Ascension and Declination  天球坐標(biāo)系:赤經(jīng)和赤緯
1.3.2  Observer-Centered Definitions  以觀測者為中心的定義
1.3.3  Apparent Sizes  表觀尺寸
1.4  BASIC STRUCTURE OF A TRADITIONAL RADIO TELESCOPE  傳統(tǒng)射電望遠(yuǎn)鏡的基本結(jié)構(gòu)
1.4.1  Parabolic Reflector  拋物面式反射面
1.4.2  Mount  座架
1.4.3  Feeds, Receivers, and Computer  饋源、接收機和計算機
1.5  RADIO MAPS  射電成圖
QUESTIONS AND PROBLEMS  習(xí)題
CHAPTER 2  Introduction to Radiation Physics  輻射物理學(xué)簡介
2.1  MEASURES OF THE AMOUNT OF RADIATION  輻射量的測量
2.1.1  Total Energy Emitted  輻射的總能量
2.1.2  Luminosity  光度
2.1.3  Flux  流量
2.1.4  Flux Density  流量密度
2.1.5  Intensity  強度
2.1.6  Relation between Intensity and the Electric Field and Magnetic Field Waves  強度與電磁場波之間的關(guān)系
2.2  BLACKBODY RADIATION  黑體輻射
2.3  RAYLEIGHCJEANS APPROXIMATION  瑞利C金斯近似
2.4  BRIGHTNESS TEMPERATURE  亮溫度
2.5  COHERENT RADIATION  相干輻射
2.6  INTERFERENCE OF LIGHT  光的干涉
2.7  POLARIZATION OF RADIATION  輻射的偏振
2.7.1  Stokes Parameters  斯托克斯參數(shù)
QUESTIONS AND PROBLEMS  習(xí)題
CHAPTER 3  Radio Telescopes  射電望遠(yuǎn)鏡
3.1  RADIO TELESCOPE REFLECTORS, ANTENNAS, AND FEEDS  射電望遠(yuǎn)鏡的反射面、天線和饋源
3.1.1  Primary Reflectors  主反射面
3.1.2  Beam Pattern  波束圖
3.1.3  Feeds and Primary Reflector Illumination  饋源和主反射面照明
3.1.4  Surface Errors  表面誤差
3.1.5  Beam Pattern Revisited*  再談波束圖
3.2  HETERODYNE RECEIVERS  外差式接收機
3.2.1  Transmission Lines  傳輸線
3.2.2  Front-End Receiver Components  接收機前端組件
3.2.3  Back-End Receiver Components  接收機后端組件
3.2.4  High-Frequency Heterodyne Receivers  高頻外差式接收機
3.3  NOISE, NOISE TEMPERATURE, AND ANTENNA TEMPERATURE  噪聲、噪聲溫度和天線溫度
3.4  BOLOMETER DETECTORS  輻射熱探測計
3.5  SPECTROMETERS  頻譜儀
3.5.1  Filter Bank Spectrometer  濾波器組式頻譜儀
3.5.2  Digital Spectrometers*  數(shù)字式頻譜儀
3.6  VERY LOW-FREQUENCY RADIO ASTRONOMY  甚低頻射電天文學(xué)
3.6.1  Low-Frequency Window  低頻窗口
3.6.2  Antennas  天線
3.6.3  Receivers  接收機
3.6.4  Radio Frequency Interference  射頻干擾
QUESTIONS AND PROBLEMS  習(xí)題
CHAPTER 4  Single-Dish Radio Telescope Observations  單口徑射電望遠(yuǎn)鏡觀測
4.1  BASIC MEASUREMENTS WITH A SINGLE-DISH TELESCOPE  單口徑望遠(yuǎn)鏡的基本測量
4.1.1  Switched Observations  開關(guān)式觀測
4.1.2  Determination of System Temperature  系統(tǒng)溫度的確定
4.1.3  Measurement of Antenna Temperature  天線溫度的測量
4.1.4  Uncertainty in the Measured Antenna Temperature  測量天線溫度的不確定性
4.2  ANTENNA BEAM  天線波束
4.2.1  Beam Power Pattern and Antenna Solid Angle  波束功率方向圖和天線立體角
4.2.2  Main Beam and Angular Resolution  主波束和角分辨率
4.2.3  Main Beam Efficiency  主波束效率
4.2.4  Detected Power from Extended Sources  從擴展源中探測功率
4.3  OBSERVING RESOLVED VERSUS UNRESOLVED SOURCES  觀測可解析源與不可解析源
4.3.1  Unresolved Sources  不可解析源
4.3.2  Resolved Sources  可解析源
4.3.3  Uniform Source That Fills the Sky  充滿天空的均勻源
4.3.4  Brightness Temperature versus Antenna Temperature, Beam Dilution, and Beam  Filling Factor  亮溫度與天線溫度、波束稀釋和波束填充系數(shù)的關(guān)系
4.4  SPECTRAL-LINE OBSERVATIONS  譜線觀測
4.4.1  Spectral Parameters  頻譜參數(shù)
4.4.2  Frequency Switching  頻率切換
4.5  OBTAINING RADIO IMAGES  獲取射電圖像
4.5.1  Convolution with Beam Pattern  與波束圖的卷積
4.5.2  Deconvolution  去卷積
4.6  CALIBRATION OF A RADIO TELESCOPE  射電望遠(yuǎn)鏡的校準(zhǔn)
4.6.1  Pointing Corrections  指向校正
4.6.2  Calibration of the Gain, Effective Area, and Gain Curve  增益、有效面積和增益曲線的校準(zhǔn)
4.6.3  Measuring the Beam Pattern and Main Beam Efficiency  測量波束圖和主波束效率
4.6.4  Calculating Antenna Solid Angle and Main Beam Efficiency  計算天線立體角和主波束效率
4.7  TELESCOPE SENSITIVITY CONSIDERATIONS IN PLANNING AN  OBSERVATION  規(guī)劃觀測時關(guān)于望遠(yuǎn)鏡靈敏度的考慮
4.8  POLARIZATION CALIBRATION*  偏振校準(zhǔn)
QUESTIONS AND PROBLEMS  習(xí)題
CHAPTER 5  Aperture Synthesis Basics: Two-Element Interferometers  綜合孔徑基礎(chǔ):兩單元干涉儀
5.1  WHY APERTURE SYNTHESIS  為什么要綜合孔徑
5.2  TWO-ELEMENT INTERFEROMETER  兩單元干涉儀
5.3  OBSERVATIONS OF A SINGLE-POINT SOURCE  單點源的觀測
5.3.1  Response of the Additive Interferometer  相加干涉儀的響應(yīng)
5.3.2  Response of the Multiplicative Interferometer  相關(guān)干涉儀的響應(yīng)
5.3.3  Effect of Noise  噪聲的影響
5.4  FRINGE FUNCTION  條紋函數(shù)
5.5  VISIBILITY FUNCTION  可見度函數(shù)
5.5.1  Analysis of Visibilities for a Single-Point Source  點源的可見度函數(shù)分析
5.6  OBSERVATIONS OF A PAIR OF UNRESOLVED SOURCES  一對不可解析源的觀測
5.7  OBSERVATIONS OF A SINGLE EXTENDED SOURCE  單個擴展源的觀測
5.8  COHERENCE AND THE EFFECTS OF FINITE BANDWIDTH AND  INTEGRATION TIME  有限帶寬與積分時間的相干性及其影響
5.8.1  Bandwidth Smearing  帶寬導(dǎo)致的模糊
5.8.2  Time Smearing  時間導(dǎo)致的模糊
5.9  BASIC PRINCIPLES OF INTERFEROMETRY  干涉測量的基本原理
QUESTIONS AND PROBLEMS  習(xí)題
CHAPTER 6  Aperture Synthesis: Advanced Discussion  綜合孔徑: 討論
6.1  CROSS-CORRELATION OF RECEIVED SIGNALS  接收信號的互相關(guān)
6.2  COMPLEX-VALUED CROSS-CORRELATION  復(fù)值互相關(guān)
6.3  COMPLEX CORRELATION OF A POINT SOURCE AT A SINGLE FREQUENCY  單頻上點源的復(fù)相關(guān)
6.4  EXTENDED SOURCES AND THE FOURIER TRANSFORM  擴展源和傅里葉變換
6.5  FOURIER TRANSFORMS FOR SOME COMMON SOURCE SHAPES  常見形狀源的傅里葉變換
6.5.1  Visibility Function of a Point Source  點源的可見度函數(shù)
6.5.2  Visibility Function of Two Point Sources  雙點源的可見度函數(shù)
6.5.3  Visibility Function of a Gaussian Profile  高斯輪廓源的可見度函數(shù)
6.6  THREE DIMENSIONS, THE EARTH’S ROTATION, AND THE COMPLEX  FRINGE FUNCTION  三維空間、地球自轉(zhuǎn)和復(fù)條紋函數(shù)
6.7  NONZERO BANDWIDTH AND FINITE INTEGRATION TIME  非零帶寬和有限積分時間
6.8  SOURCE STRUCTURE AND THE VISIBILITY FUNCTION  源結(jié)構(gòu)和可見度函數(shù)
6.8.1  Sky Coordinates and the Visibility Function  天球坐標(biāo)和可見度函數(shù)
6.8.2  uv-Plane  uv平面
6.8.3  Visibility Functions of Simple Structures  簡單結(jié)構(gòu)的可見度函數(shù)
6.9  THE EARTH’S ROTATION AND UV TRACKS  地球自轉(zhuǎn)和 uv 軌跡
6.10  INTERFEROMETERS AS SPATIAL FILTERS  干涉儀作為空間濾波器
6.11  SENSITIVITY AND DETECTION LIMITS  靈敏度和探測極限
6.11.1  Noise in a Visibility  可見度中的噪聲
6.11.2  Image Sensitivity  圖像靈敏度
6.11.3  Brightness Sensitivity  亮度靈敏度
6.12  CALIBRATION  校準(zhǔn)
6.13  IMAGE FORMATION  圖像形成
6.13.1  Image Dimensions and Gridding Parameters  圖像尺寸和網(wǎng)格參數(shù)
6.13.2  Dirty Map and Dirty Beam  臟圖和臟波束
6.13.3  uv Weighting Schemes  uv加權(quán)方案
6.13.4  CLEANing the Map: Deconvolving the Dirty Beam  潔化圖像:對臟波束去卷積
6.13.5  Self-Calibration and Closure Phase and Amplitude  自校準(zhǔn)、閉合相位和振幅
6.14  VERY LONG BASELINE INTERFEROMETRY*  甚長基線干涉測量(VLBI)
6.14.1  VLBI Resolution and Sensitivity  VLBI的分辨率和靈敏度
6.14.2  Hardware Considerations for VLBI   VLBI的硬件考慮
6.14.3  Fringe Searching or Fringe Fitting  條紋搜索或條紋擬合
QUESTIONS AND PROBLEMS  習(xí)題
Appendix A  Constants and Conversions  常量及其單位換算
Appendix B  Derivation of Beam Pattern  波束圖的推導(dǎo)
Appendix C  Cross-Correlations  互相關(guān)
Appendix D  Complex-Exponential Form of Wave Functions  波函數(shù)的復(fù)指數(shù)形式
Appendix E  Primer on Fourier Transforms, with Focus on Use in Aperture Synthesis  綜合孔徑應(yīng)用中的傅里葉變換
Appendix F  Wiener-Khinchin Theorem  維納-欣欽定理
Appendix G  Interferometer Simulation Activities  干涉儀的仿真
Index  索引
射電天文學(xué). 天體物理學(xué) 分冊目錄
CHAPTER 1  Introductory Material  射電天文學(xué)基礎(chǔ)
1.1  UNITS AND NOMENCLATURE  單位和命名法
1.1.1  Issues with Units of Electricity and Magnetism  電和磁單位的問題
1.1.2  Astronomy Units  天文學(xué)單位
1.1.3  Nomenclature for Atomic Ionization States  原子電離態(tài)的命名法
1.2  RADIATION MEASURES  輻射測量
1.2.1  Luminosity  光度
1.2.2  Flux  流量
1.2.3  Flux Density  流量密度
1.2.4  Intensity  強度
1.2.5  Polarization  偏振
1.3  SKY COORDINATES  天球坐標(biāo)系
1.3.1  Equatorial Coordinate System  赤道坐標(biāo)系
1.3.2  Galactic Coordinate System  銀河坐標(biāo)系
1.4  DOPPLER EFFECT  多普勒效應(yīng)
1.4.1  Classical Doppler Effect  經(jīng)典多普勒效應(yīng)
1.4.2  Relativistic Doppler Effect  相對論多普勒效應(yīng)
1.5  COSMOLOGICAL REDSHIFT AND THE EXPANDING UNIVERSE  宇宙學(xué)紅移和膨脹的宇宙
1.6  DISTANCE AND AGE CALCULATIONS  距離和年齡的計算
QUESTIONS AND PROBLEMS  習(xí)題
CHAPTER 2  Propagation of Radiation  輻射的傳播
2.1  RADIATIVE TRANSFER  輻射轉(zhuǎn)移
2.1.1  Absorption of Radiation  輻射的吸收
2.1.2  Emission of Radiation  輻射的發(fā)射
2.1.3  General Radiative Transfer Equation  一般輻射轉(zhuǎn)移方程
2.2  PROPAGATION IN AN IONIZED MEDIUM  在電離介質(zhì)中的傳播
2.2.1  Plasma Frequency  等離子體頻率
2.2.2  Dispersion Measure  色散測量
2.2.3  Faraday Rotation  法拉第旋轉(zhuǎn)
QUESTIONS AND PROBLEMS  習(xí)題
CHAPTER 3  Continuum Emission Processes  連續(xù)輻射過程
3.1  RADIATION FROM ACCELERATED CHARGES  加速電荷的輻射
3.2  THERMAL RADIATION  熱輻射
3.2.1  Blackbody Radiation  黑體輻射
3.2.2  Rayleigh-Jeans Approximation  瑞利C金斯近似
3.2.3  Brightness Temperature  亮溫度
3.2.4  Thermal Bremsstrahlung Radiation (or Free-Free Emission)  熱軔致輻射(或自由C自由輻射)
3.3  NON-THERMAL RADIATION  非熱輻射
3.3.1  Cyclotron Radiation  回旋輻射
3.3.2  Synchrotron Radiation by a Single Relativistic Electron  單個相對論電子的同步輻射
3.3.3  Radiation by an Ensemble of Relativistic Electrons  相對論電子集合體的輻射
3.3.4  Polarization of Synchrotron Radiation  同步輻射的偏振
3.3.5  Optical Depth Effects: Synchrotron Self-Absorption  光學(xué)深度效應(yīng):同步輻射的自吸收
QUESTIONS AND PROBLEMS  習(xí)題
CHAPTER 4  Spectral Lines  譜線
4.1  EMISSION AND ABSORPTION LINES  發(fā)射和吸收線
4.1.1  Einstein Coefficients  愛因斯坦系數(shù)
4.1.1.1  Spontaneous Emission  自發(fā)輻射
4.1.1.2  Absorption  吸收
4.1.1.3  Stimulated Emission  受激輻射
4.1.1.4  Absorption Coefficient  吸收系數(shù)
4.1.1.5  Relations between the Einstein A and B Coefficients  愛因斯坦A系數(shù)和B系數(shù)之間的關(guān)系
4.1.2  Line Broadening  譜線展寬
4.1.3  Spectral Line Radiative Transfer  譜線輻射轉(zhuǎn)移
4.1.4  Kirchhoff’s Rules for Spectroscopy  基爾霍夫光譜學(xué)法則
4.1.5  Collisional Transition Rates and Excitation Temperature  碰撞轉(zhuǎn)換率和激發(fā)溫度
4.2  RADIO SPECTRAL LINES  射電譜線
4.2.1  21-cm Spectral Line of Atomic Hydrogen  氫原子的21 cm譜線
4.2.2  Radio Recombination Spectral Lines  射電復(fù)合譜線
4.2.3  Molecular Rotational Spectral Lines  分子旋轉(zhuǎn)譜線
QUESTIONS AND PROBLEMS  習(xí)題
CHAPTER 5  The Cold Interstellar Medium of the Milky Way  銀河系中的冷星際介質(zhì)
5.1  21-CM SPECTRAL LINE OF ATOMIC HYDROGEN  氫原子的21 cm譜線
5.1.1  Observations of the 21-cm Line  21 cm譜線的觀測
5.1.2  Rotation Curve of the Galaxy  銀河系的旋轉(zhuǎn)曲線
5.1.3  Distribution of HI in the Milky Way  銀河系中的中性氫分布
5.1.4  Absorption Lines - Warm and Cold Gas  溫?zé)釟怏w的吸收線
5.1.5  Magnetic Field  磁場 
5.2  OBSERVATIONS OF THE ROTATIONAL LINES OF MOLECULES  分子旋轉(zhuǎn)譜線的觀測
5.2.1  Molecular Clouds  分子云
5.2.2  Distribution of Molecular Clouds in the Galaxy  銀河系中的分子云分布
5.2.3  Molecular Cloud Cores  分子云核
5.2.4  Astrochemistry  天體化學(xué)
5.3  OBSERVATIONS OF THE THERMAL EMISSION FROM DUST  塵埃熱輻射的觀測
5.3.1  Dust Extinction  塵埃消光
5.3.2  Dust Emission  塵埃輻射
5.3.3  Global Distribution of Dust  塵埃的全局分布
QUESTIONS AND PROBLEMS  習(xí)題
CHAPTER 6  HⅡ Regions and Planetary Nebulae at Radio Wavelengths  射電波段的HⅡ區(qū)和行星狀星云
6.1  HⅡ REGIONS  HⅡ區(qū)
6.1.1  Ionization Structure of HⅡ Regions  HⅡ區(qū)的電離結(jié)構(gòu) 
6.1.2  The Temperature of HⅡ Regions  HⅡ區(qū)的溫度
6.1.3  Time Scales of HⅡ Regions  HⅡ區(qū)的時標(biāo)
6.2  RADIO EMISSION FROM HⅡ REGIONS   HⅡ區(qū)的射電輻射
6.2.1  Bremsstrahlung Emission from HⅡ Regions  HⅡ區(qū)的韌致輻射
6.2.2  Radio Recombination Line Emission from HⅡ Regions  HⅡ區(qū)的射電復(fù)合線輻射
6.2.3  Gas Density and Temperature from RRLs: Non-Equilibrium Effects  非平衡效應(yīng)下來自射電復(fù)合線的氣體密度和溫度
6.3  THE CLASSIFICATION AND EVOLUTION OF HⅡ REGIONS HⅡ區(qū)的分類與演化
6.3.1  Classification of HⅡ Regions   HⅡ區(qū)的分類
6.3.2  Evolution of HⅡ Regions  HⅡ區(qū)的演化
6.4  PLANETARY NEBULAE  行星狀星云
QUESTIONS AND PROBLEMS  習(xí)題
CHAPTER 7  Radio Emission from Stellar Objects  恒星天體的射電輻射
7.1  SOLAR RADIO EMISSION  太陽射電輻射
7.1.1  The Quiet Sun  寧靜太陽
7.1.2  Slowly Varying Component of the Sun  太陽的緩慢變化成分
7.1.3  Radio Bursts  射電暴
7.2  RADIO EMISSION FROM STARS  恒星的射電輻射
7.2.1  Thermal Radio Emission  射電熱輻射
7.2.1.1  Main Sequence Stars  主序星
7.2.1.2  Giant and Supergiant Stars  巨型和超巨型恒星
7.2.2  Winds from Asymptotic Giant Branch Stars  來自漸近巨支星的星風(fēng)
7.2.3  Flare Stars  耀星
7.3  YOUNG STARS  年輕恒星
7.3.1  Proto-stellar Disks  原恒星盤
7.3.2  Thermal Radio Jets  射電熱噴流
7.3.3  Molecular Outflows  分子外向流
7.4  RADIO PULSARS  射電脈沖星
7.4.1  Pulsar Mechanics  脈沖星機制
7.4.2  Pulsar Emission Mechanisms  脈沖星的輻射機理
7.4.3  Pulsar Searches  脈沖星搜索
7.4.4  Binary Pulsars  脈沖雙星
7.4.5  Radio Pulsars as Probes of the Interstellar Medium  作為星際介質(zhì)探針的射電脈沖星
7.4.6  Supernova Remnants  超新星遺跡
QUESTIONS AND PROBLEMS  習(xí)題
CHAPTER 8  Galaxies at Radio Wavelengths  射電波段的星系
8.1  21-CM HI OBSERVATIONS  21 cm中性氫的觀測
8.1.1  HI Mass of Galaxies  星系中的中性氫質(zhì)量
8.1.2  Imaging HI in Galaxies  星系中的中性氫成像
8.2  MOLECULAR GAS IN GALAXIES  星系中的分子氣體
8.2.1  Molecular Gas Mass  分子氣體質(zhì)量
8.2.2  Imaging CO in Galaxies  星系中的一氧化碳成像
8.2.3  Other Molecules in Galaxies  星系中的其他分子
8.3  RADIO CONTINUUM EMISSION FROM GALAXIES  星系的射電連續(xù)輻射
8.3.1  Dust Emission  塵埃輻射
8.3.2  Long Wavelength Radio Continuum Emission  長波射電連續(xù)輻射
8.4  DISTANT GALAXIES  遙遠(yuǎn)的星系
QUESTIONS AND PROBLEMS  習(xí)題
CHAPTER 9  Radio Galaxies and Quasars  射電星系和類星體
9.1  BRIEF OVERVIEW OF ACTIVE GALACTIC NUCLEI 活動星系核(AGN)的簡述
9.2  AGN MODEL  AGN的模型
9.3  MORPHOLOGIES, SIZES, AND SPECTRA OF RADIO GALAXIES AND QUASARS  射電星系和類星體的形態(tài)、尺寸及頻譜
9.3.1  Synchrotron Spectrum from an Inhomogeneous Source  來自非均勻源的同步輻射譜
9.3.2  Free-free Absorption of Synchrotron Radiation  同步輻射的自由C自由吸收
9.3.3  Inverse Compton Scattering and the Compton Limit  逆康普頓散射和康普頓極限
9.4  INFERRING PHYSICAL CONDITIONS IN AGN  推斷AGN中的物理條件
9.4.1  Spectral Index Maps  譜指數(shù)圖
9.4.2  Kinematic Studies  運動學(xué)研究
9.4.3  Magnetic Field Estimates  磁場估計
9.4.4  Electron Cooling Timescales and the Nature of Hot Spots in Jets  電子冷卻時標(biāo)和噴流中熱點的性質(zhì)
9.5  THE CENTER OF THE MILKY WAY  銀心
QUESTIONS AND PROBLEMS  習(xí)題
CHAPTER 10  Cosmic Microwave Background  宇宙微波背景(CMB)
10.1  COSMOLOGICAL MODELS  宇宙學(xué)模型
10.2  BLACKBODY NATURE OF THE CMB  CMB的黑體性質(zhì)
10.3  ANISOTROPIES IN THE CMB  CMB中的各向異性
10.4  COSMOLOGICAL PARAMETERS  宇宙學(xué)參數(shù)
10.5  CMB POLARIZATION  CMB偏振
QUESTIONS AND PROBLEMS  習(xí)題
APPENDIX A  Constants and Conversions  常量及其單位換算
APPENDIX B  Mathematica Code for Calculating Age of Universe and Distances for Given Redshift  根據(jù)確定的紅移計算宇宙年齡和距離的Mathematica代碼
APPENDIX C  Complex-Valued Wave Functions  復(fù)值波函數(shù)
APPENDIX D  Derivations of the Effects of Propagation of Radiation in Ionized Media  電離介質(zhì)中輻射傳播效應(yīng)的推導(dǎo)
APPENDIX E  Fourier Transform  傅里葉變換
Index  索引