Astrophysics (index)

Radio

(electromagnetic radiation, frequency 3kHz to 300GHz)

Radio is Electromagnetic Radiation (EMR) with Wavelength of 1mm or above (100000km is sometimes cited as a "maximum"), i.e., in the Frequency range of 300GHz to 3kHz. Infrared (IR) is adjacent to it on the high frequency end. The low frequency end, e.g., past 100000km, is sometimes called Tremendously Low Frequency (TLF) and/or Subradio.


(EMR,spectrum,band)
http://en.wikipedia.org/wiki/Radio_waves
WaveLFreqPhoton
Energy
  
1mm300GHz1.3meVbeginRadio
100000km3.0Hz12×10-15eVendRadio

Referenced by:
Active Galaxy
Active Galactic Nucleus (AGN)
Angular Resolution
Antenna Pattern
Arecibo Occultation Survey (AO)
Aperture Synthesis
Arecibo Observatory (NAIC)
Bologna Survey of Radio Sources
Cambridge Catalog of Radio Sources
Cassini
Cosmic Anisotropy Telescope (CAT)
Cosmic Lens All-Sky Survey (CLASS)
Carbon Monoxide (CO)
CRATES
Dominion Observatory 1420 MHz Source Catalog (DA)
Dominion Observatory 10.03 MHz Source Catalog (DB)
Dragone Telescope
Earth-sized VLBI
87GB Catalog of Radio Sources (87GB)
Elevation Range
Extremely Low Frequency (ELF)
Electromagnetic Radiation (EMR)
European Pulsar Timing Array (EPTA)
Frequency Modulation (FM)
Focal Plane Array (FPA)
Fast Radio Burst (FRB)
Frequency
Green Bank 300ft Telescope (GB300)
Green Bank 6-cm Radio Source Catalog (GB6)
Green Bank Telescope (GBT)
Geomagnetic Storm
Giant Metrewave Radio Telescope (GMRT)
Gregorian Telescope
Infrared (IR)
Interferometer
Interstellar Holography
Institut de radioastronomie millimétrique (IRAM)
IRAM 30m Telescope
Japan Aerospace Exploration Agency (JAXA)
JUICE
Juno
Jansky (Jy)
Lunar Reconnaissance Orbiter (LRO)
Mars Express
Mauna Kea
Microwave
Badgerys Creek Interferometer 101MHz Survey (Mills)
Mauna Kea Observatories (MKO)
MOJAVE
Max Planck Institute for Radio Astronomy (MPIR)
Millisecond Pulsar (MSP)
Murchison Widefield Array (MWA)
New Horizons
National Radio Astronomy Observatory (NRAO)
Occultation Observations
Ohio Radio Survey
1 Jansky Empty Field Survey (1 Jy)
Owens Valley Radio Observatory (OVRO)
PAPER
Parkes Observatory
Phased Array
Parkes Catalog (PKS)
Plasma Frequency
Parkes-MIT-NRAO Surveys (PMN)
Prime Focus
Quasar (QSO)
Radar
Radio Astronomy
Radiometer
Radiometer Equation
Radio Star
Radio Telescope
Reflector Telescope
Radio Frequency Interference (RFI)
Radio Galaxy (RG)
RASS/Green Bank Catalog (RGB)
Roma-BZCAT
Star Formation Rate (SFR)
Super Low Frequency (SLF)
Submillimeter Telescope (SMT)
Software Telescope
Spektr-R
Star Formation (SF)
STEREO
Subradio
3C 273
Tremendously Low Frequency (TLF)
Texas Survey of Radio Sources at 365 MHz (TXS)
Ultra Low Frequency (ULF)
USS Sources
Visible Light
Very Large Array (VLA)
Very-long-baseline Interferometry (VLBI)
Very Low Frequency (VLF)
Voyager
Very Small Array (VSA)
Wavelength
Westerhout Radio Survey (W)
Atmospheric Window
Westerbork Synthesis Radio Telescope (WSRT)

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