Aberration
|
5C
|
Absolute
flux density
|
3E
|
Absorption
coefficient
|
2B 7B
|
Airy
pattern
|
3C
|
Alt-az
(altitude-azimuth)
telescope mount
|
3E
|
Ampere's
law
|
5A
|
Antenna
|
3A
|
Antenna
temperature
|
3A
|
Aperture
|
3B
|
Aperture
blockage
|
3E
|
Aperture
efficiency
|
3C
|
Astronomical
unit
|
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
|
Broad-line
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
(P-Pdot 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
|
Fanaroff-Riley
FR I and FR II
sources
|
5F
|
Far-field
distance
|
3B
|
Far-infrared
(FIR) / radio
correlation
|
5F
|
Feed
antenna
|
3B
|
Field
pattern
|
3B
|
Fine-structure
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
|
Free-free
emission coefficient
|
4B
|
Free-free
Gaunt factor
|
4B
|
Free-free
opacity
|
4B
|
Free-free
radiation
|
4A
4B
|
Free-free
spectral luminosity
|
4B
|
FWHM
beamwidth
|
3B
3C
|
|
|
Gain
(antenna)
|
3A
|
Gain
fluctuations (radiometer)
|
3F
|
Gaussian
(function)
|
3C
|
Gregorian
subreflector
|
3E
|
Group
velocity
|
6A
|
Gyro
frequency
|
5A
|
Gyro
radiation
|
5A
|
|
|
HI line (21 cm line)
|
7E
|
HII region
|
4A
|
Half-power
beam width (HPBW)
|
3B
3C
|
Homology
telescope
|
3E
|
Huygen's
principle
|
3B
|
Hyperfine
line
|
7E
|
|
|
Impact
parameter
|
4B
|
Integrator
|
3F
|
Intermediate-Frequency
(IF)
|
3F
|
Intrinsic
line width
|
7A
|
Inverse-Compton
average frequency
|
5E
|
Inverse-Compton
maximum frequency
|
5E
|
Inverse-Compton
power (electron)
|
5E
|
Inverse-Compton
radiation
|
5E
|
Inverse-square
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 g-factor
|
7E
|
Nyquist
formula
|
2C
|
|
|
Ohm's law
|
3A
|
Opacity
|
2B
|
Opacity
coefficient
|
2B 7B
|
Optical
depth
|
2B
|
Optical
velocity
|
7E
|
|
|
P-Pdot diagram (pulsar)
|
6A
|
Paraboloidal
reflector
|
3B
|
Photon
|
2C
|
Pitch angle
|
5B
|
PK
(Post-Keplerian) parameters
|
6A
|
Planck's
law
|
2C
|
Planetary
nebula
|
4A
|
Plasma
frequency
|
6A
|
Point-source
response
|
3B
|
Polar
molecule
|
7D
|
Polar mount
|
3E
|
Post-Keplerian
(PK) parameters
|
6A
|
Power gain
|
3A
|
Power
pattern
|
3A
|
Poynting
flux
|
2D
|
Proton mass
|
4B
|
Pulsar
|
6A
|
|
|
Quasi-stellar 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
|
Rayleigh-Jeans
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
|
Spin-up
line (P-Pdot diagram)
|
6A
|
Spontaneous
emission coefficient
|
7B
|
Spontaneous
emission rate
|
7A
7B
|
Square-law
detector
|
3F
|
Starburst
(galaxy)
|
5F
|
Stationary
noise
|
3F
|
Stationary
state
|
7B
|
Statistical
weights
|
7B
|
Stefan-Boltzmann
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
self-absorption
|
5D
|
Synchrotron
self-Compton
radiation
|
5E
|
Synchrotron
spectrum (electron)
|
5C
|
Synchrotron
spectrum (source)
|
5D
|
System
noise temperature
|
3F
|
|
|
Thermal
bremsstrahlung
|
4A
|
Thermodynamic
equilibrium (TE)
|
2B
|
Thomson
cross section
|
5B
5E
|
Time
constant (detector)
|
3F
|
Time
dilation (relativistic)
|
5B
|
Total
intensity
|
2A
|
Total-power
radiometer
|
3F
|
Total-power
radiometer equation
|
3F
|
Transit
telescope
|
3E
|
Transverse
Doppler shift
|
5F
|
Tully-Fisher
relation
|
7E
|
|
|
Unified model (AGN)
|
5F
|
Uniform
illumination
|
3B
|
Unipolar
generator
|
6A
|
Unit
rectangle function
|
3B
|
Unpolarized
radiation
|
3A
|
|
|
Waveguide
horn
|
3E
|
Weak
reciprocity theorem
|
3A
|
Wien's law
|
2C
|
|
|
Zenith
angle
|
2B 3E
|