Astrophysics (Index)About

supernova remnant

(SNR, SN remnant, remnant)
(nebula of debris resulting from a supernova)

A supernova remnant is an after-effect of a supernova that occurs for some, essentially a type of nebula. It consists of the supernova's ejected debris (material ejected from the exploding star, often at relativistic speeds), along with interstellar medium (ISM) affected by the debris. The remnant may be optically visible if a source of light is nearby that is reflected, or if the debris collision with other material causes one or both to heat from the shock, increasing the thermal emission. The aftermath of a supernova (i.e., the beginning of its life as a remnant) is modeled as passing through three phases:

Example supernova remnants:

Some classification:

A different term, stellar remnant, is used for a black hole or neutron star left from a supernova. These remain after any supernova remnant has dissipated.

A nova remnant is the analogous debris sometimes produced by a nova (which is typically a flash triggered by accretion onto a white dwarf). A nova remnant is smaller, slower, and fades faster than a supernova remnant, but may leave a brighter central star to illuminate it.


The abbreviation SNR is also used for signal-to-noise ratio.


(object type,supernovae,nebulae)
Further reading:
https://en.wikipedia.org/wiki/Supernova_remnant
https://en.wikipedia.org/wiki/Nova_remnant
https://astronomy.swin.edu.au/cosmos/S/Supernova+Remnant
https://dictionary.obspm.fr/index.php?formSearchTextfield=supernova+remnant&showAll=1
https://imagine.gsfc.nasa.gov/science/objects/supernova_remnants.html
https://chandra.harvard.edu/photo/category/snr.html
http://www.messier.seds.org/snr.html
https://ircamera.as.arizona.edu/NatSci102/NatSci/lectures/supernovaremnants.htm
https://www.mrao.cam.ac.uk/surveys/snrs/
PrefixExample  
SNRSNR G111.7-02.1 

Referenced by pages:
3C 397
Abell 85 (A85)
Antlia SN Remnant
baryon acoustic oscillations (BAO)
blastwave
bright nebula
Cassiopeia A
cloud
compact object (CO)
Crab Nebula (M1)
Cygnus Loop
emission nebula
G1.9+0.3
guest star
Kepler's Supernova
light curve
morphology
N 103B
nebula
neutron star (NS)
nuclear statistical equilibrium (NSE)
pulsar wind nebula (PWN)
Puppis A
radio source (RS)
radio supernova (RSN)
rare designator prefixes
shell
shock wave
signal-to-noise ratio (SNR)
SN 1572
SN 185
SN 1987A (1987A)
sulfur (S)
supernova (SN)
ultraviolet astronomy
Vela supernova remnant
W51
white dwarf (WD)
X-ray source

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