Astrophysics (index)about

microwave

(electromagnetic radiation, frequency 300MHz to 300GHz)

Microwave is electromagnetic radiation (EMR) with wavelength in the range of 1mm to 1m (frequency 300MHz to 300GHz). It comprises the shortest radio waves, adjacent to infrared.

The term microwave astronomy is occasionally used and millimeter astronomy spans the border between microwave and infrared. The atmosphere blocks much microwave EMR from reaching Earth, and some space observatories have been used. However, the long-wavelength end of microwave is within the radio atmospheric window, narrow windows allow some shorter microwaves through, and high altitudes are used for microwave observatories to sense more signal.

Targets of study include the cosmic microwave background which has motivated three space observatories, as well as the 21cm line.


(EMR,radio,spectrum,band)
http://en.wikipedia.org/wiki/Microwave
WaveLFreqPhoton
Energy
  
1mm300GHz1.3meVbeginmicrowave
1m300MHz1.3μeVendmicrowave

Referenced by:
Atacama Cosmology Telescope (ACT)
anomalous microwave emission (AME)
aperture synthesis
Atacama Pathfinder Experiment (APEX)
ARCADE
Atacama Desert
carbon (C)
C-BASS
cosmic background radiation (CBR)
CCAT-prime (CCAT-p)
Cosmic Lens All-sky Survey (CLASS)
cosmic microwave background (CMB)
Cosmic Background Explorer (COBE)
emissivity
fast radio burst (FRB)
Juno
KID
low frequency radio astronomy
Large Millimeter Telescope (LMT)
maser
NRAO VLA Sky Survey (NVSS)
optical interferometer
Plateau de Bure Interferometer (PdBI)
Planck
Psyche
radiometer
RMS astronomy
Rosetta
Submillimeter Telescope (SMT)
South Pole Telescope (SPT)
Sunyaev-Zel'dovich Array (SZA)
21cm line
TolTEC
water lines
wavelength

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