Aberration 
5C 

Absolute
flux density 
3E 

Absorption
coefficient 
2B 7B 

Airy
pattern 
3C 

Altaz
(altitudeazimuth)
telescope mount 
3E 

Ampere's
law 
5A 

Antenna 
3A 

Antenna
temperature 
3A 

Aperture 
3B 

Aperture
blockage 
3E 

Aperture
efficiency 
3C 

Astronomical
unit 
1C 2A 

Atmospheric
emission 
2B 

Atmospheric
window 
IA 

Azimuth 
3E


Bandpass
filter 
3F 

Bandwidth 
3F 

Barycentric
frame 
6A 

Beam solid
angle 
3A 

Beamwidth 
3B 

Big blue
bump (QSO) 
5F 

BL Lac
object 
5F 

Blackbody
radiation 
2C 

Bohr atom 
7A 

Bohr
magneton 
7E 

Bohr radius 
4A
7A 

Bolometric
luminosity 
2A 

Boltzmann
distribution 
7B 

Bremsstrahlung 
4A 

Brightness 
2A 

Brightness
temperature 
2B 

Broadline
region 
5F 

Calorimeter model 
5F 

Cassegrain
subreflector 
3E 

Cavity
radiation 
2C 

Chandrasekhar
mass 
6A 

Characteristic
age (pulsar) 
6A 

Coherent
radiation (pulsar) 
6A 

Collecting
area (effective) 
3A 

Column
density 
7E 

Cosmic rays 
5B 

Cosmic ray
energy distribution 
5D 

Cosmological
evolution 
5F 

Coulomb's
law 
2D 

Critical
density 
7D 

Critical
frequency (synchrotron) 
5C 

Current 
3A 

Curvature
radiation (pulsar) 
6A 

Cyclotron
radiation 
5A 

Cyg A
(radio galaxy) 
5D 

De Broglie wavelength 
7A 

Death line
(PPdot diagram) 
6A 

Debye
length 
4B 

Density
bounded (HII region) 
4A 

Departure
coefficient 
7C 

Diatomic
molecule 
7D 

Dicke
switch 
3F 

Dipole
antenna 
3A 

Dipole
moment (electric) 
7D 

Dispersion
delay 
6A 

Dispersion
measure 
6A 

Dispersive
smearing 
6A 

Doppler
boosting 
5F 

Doppler
equation 
5E 

Doppler
factor 
5F 

Dummy load 
2C 

Eccentricity (elliptical orbit) 
6A 

Eddington
luminosity 
5D 

Effective
collecting area 
3A 

Effective
temperature
(relativistic electron) 
5D 

Einstein
coefficients 
7B 

Einstein
delay 
6A 

Electric
dipole moment 
7D 

Electric
field 
2D 

Electric
field pattern 
3B 

Electron
gyro frequency 
5A 

Electron
mass 
4B 

Elevation
(angle) 
3E 

Emission
coefficient 
2B 

Emission
measure 
4B 

Equipartition
energy 
5D 

Event
coordinates 
5B 

Evolution
(cosmological) 
5F 

Excitation
temperature 
7B 

F/D ratio 
3B 

FanaroffRiley
FR I and FR II
sources 
5F 

Farfield
distance 
3B 

Farinfrared
(FIR) / radio
correlation 
5F 

Feed
antenna 
3A
3B 

Field
pattern 
3B 

Finestructure
constant 
7E 

Flux
density 
2A 

Focal
ellipsoid 
3B
3E 

Focal
length 
3B 

Focal point 
3B 

Focal
ratio 
3B 

FR I, FR
II sources 
5F 

Fraunhofer
approximation 
3B 

Freefree
emission coefficient 
4B 

Freefree
Gaunt factor 
4B 

Freefree
opacity 
4B 

Freefree
radiation 
4A
4B 

Freefree
spectral luminosity 
4B 

FWHM
beamwidth 
3B
3C 

Gain
(antenna) 
3A 

Gain
fluctuations (radiometer) 
3F 

Gaussian
(function) 
3C 

Gregorian
subreflector 
3E 

Groundplane
vertical 
3A 

Group
velocity 
6A 

Gyro
frequency 
5A 

Gyro
radiation 
5A 

HI line (21 cm line) 
7E 

HII region 
4A 

Halfpower
beam width (HPBW) 
3B
3C 

Homology
telescope 
3E 

Huygen's
principle 
3B 

Hyperfine
line 
7E 

Impact
parameter 
4B 

Integrator 
3F 

IntermediateFrequency
(IF) 
3F 

Intrinsic
line width 
7A 

InverseCompton
average frequency 
5E 

InverseCompton
maximum frequency 
5E 

InverseCompton
power (electron) 
5E 

InverseCompton
radiation 
5E 

Inversesquare
law 
2A 

Ionization
bounded 
4A 

Jansky,
Karl 
1B 

Kirchoff's
formula, Kirchoff's law 
2B 

Larmor's
equation, Larmor's formula 
2D 

Light
cylinder (pulsar) 
6A 

Line flux 
7E 

Line
opacity coefficient 
7B 

Line
profile 
7A 

Linear
absorption coefficient 
2B 

Local
oscillator 
3F 

Local
thermodynamic equilibrium
(LTE) 
2B 

Lorentz
factor 
5B 

Lorentz
transform 
5B 

Luminosity
function 
5F 

Magnetar 
6A 

Magnetic
dipole (pulsar) 
6A 

Magnetic
dipole radiation 
6A 

Magnetic
energy density 
5B 

Magnetic
field (synchrotron
source) 
5D 

Magnetic
force 
5A 

Magnetobremsstrahlung 
5A 

Main beam 
3A 

Main beam
efficiency 
3A
3B 

Main beam
solid angle 
3A 

Maser
emission 
7B 

Matched
polarization 
3A 

Matter
bounded (HII region) 
4A 

Maxwellian
distribution 
4B 

Mean
electric dipole moment 
7D 

Millisecond
pulsar 
6A 

Minimum
energy 
5D 

Minimum
magnetic field (pulsar) 
6A 

Mixer 
3F 

Molecular
lines 
7D 

Natural line width 
7A 

Negative
absorption 
7B 

Neutral
hydrogen line 
7E 

Neutron
star 
5F 

Noise
temperature 
3F 

Nonthermal
source 
5D 

Normal
galaxy 
5F 

Nuclear gfactor 
7E 

Nyquist
formula 
2C 

Ohm's law 
3A 

Opacity 
2B 

Opacity
coefficient 
2B 7B 

Optical
depth 
2B 

Optical
velocity 
7E 

PPdot diagram (pulsar) 
6A 

Paraboloidal
reflector 
3B 

Photon 
2C 

Pitch angle 
5B 

PK
(PostKeplerian) parameters 
6A 

Planck's
law 
2C 

Planetary
nebula 
4A 

Plasma
frequency 
6A 

Pointsource
response 
3B 

Polar
molecule 
7D 

Polar mount 
3E 

PostKeplerian
(PK) parameters 
6A 

Power gain

3A 

Power
pattern 
3A 

Poynting
flux 
2D 

Proton mass 
4B 

Pulsar 
6A 

Quasistellar object (QSO) 
5F 

Radiation
energy density 
2C 

Radiation
resistance 
3A 

Radiative
transfer 
2B 

Radio
(frequency range) 
1A 

Radio
velocity 
7E 

Radiometer 
3F 

Radiometer
equation 
3F 

Ray optics 
2A 

Rayleigh
resolution criterion 
3B 

RayleighJeans
law 
2C 

Reber,
Grote 
1B 

Reciprocity 
3A 

Recombination
lines 
7A 

Rectangular
aperture 
3C 

Recycled
pulsar 
6A 

Redshift 
5F 

Reduced
mass 
7D 

Reflection
coefficient 
2B 

Reflector
antennas 
3B 

Reflector
surface efficiency 
3C 

Relativistic
aberration 
5C 

Relativistic
beaming (electron) 
5C 

Resolving
power 
3B 

Roemer
delay 
6A 

Rotation
curve 
7E 

Ruze
equation 
3C 

Rydberg
constant 
7A 

Rydberg
frequency 
7A 

Saha equation 
7C 

Schwarzschild
radius 
5D 

Seyfert
galaxy 
5F 

Shapiro
delay 
6A 

Sidelobe 
3A 

Similarity
theorem 
3B 

Sinc
function 
3B 

Sky survey 
5F 

Source
counts 
5F 

Specific
intensity 
2A 

Spectral
brightness 
2A 

Spectral
emissivity 
2B 

Spectral
energy density 
2C 

Spectral
index 
4B 

Spectral
line 
7A 

Spectral
luminosity 
2A 

Spin
temperature 
7E 

Spinup
line (PPdot diagram) 
6A 

Spontaneous
emission coefficient 
7B 

Spontaneous
emission rate 
7A
7B 

Squarelaw
detector 
3F 

Starburst
(galaxy) 
5F 

Stationary
noise 
3F 

Stationary
state 
7B 

Statistical
weights 
7B 

StefanBoltzmann
constant 
2C 

Stimulated
emission 
7B 

Stimulated
emission coefficient 
7B 

Stray
radiation 
3A 

Stromgren
radius 
4A 

Stromgren
sphere 
4A 

Strong
reciprocity theorem 
3A 

Superheterodyne
receiver 
3F 

Superluminal
velocity 
5F 

Synchrotron
brightness limit 
5E 

Synchrotron
lifetime (source) 
5D 

Synchrotron
power (electron) 
5B 

Synchrotron
radiation 
5A 5B 

Synchrotron
selfabsorption 
5D 

Synchrotron
selfCompton
radiation 
5E 

Synchrotron
spectrum (electron) 
5C 

Synchrotron
spectrum (source) 
5D 

System
noise temperature 
3F 

Thermal
bremsstrahlung 
4A 

Thermal
source 
5D 

Thermodynamic
equilibrium (TE) 
2B 

Thomson
cross section 
5B
5E 

Time
constant (detector) 
3F 

Time
dilation (relativistic) 
5B 

Total
intensity 
2A 

Totalpower
radiometer 
3F 

Totalpower
radiometer equation 
3F 

Transit
telescope 
3E 

Transverse
Doppler shift 
5F 

TullyFisher
relation 
7E 

Unified model (AGN) 
5F 

Uniform
illumination 
3B 

Unipolar
generator 
6A 

Unit
rectangle function 
3B 

Unpolarized
radiation 
3A 

Waveguide
horn 
3A
3E 

Weak
reciprocity theorem 
3A 

Wien's law 
2C 

Zenith
angle 
2B 3E 