Supernova Remnant

(Ultima modifica: lunedì, 2 ottobre 2023, 18:24)


Short Definition
A supernova remnant is a construction formed by the expanding debris left behind after a massive star undergoes a supernova explosion. It consists of a complex structure of shockwaves, gas, and dust, formed from the ejected material of the exploded star.


Detailed Definition
A supernova remnant undergoes a sequence of five distinct stages before reaching its final form.

First, the ejecta expands freely, gradually shedding their mass into the circumstellar or interstellar medium. Subsequently, the remnant begins to gather and compress surrounding gas, forming a prominent shell. In the ensuing phase, the shell undergoes cooling, resulting in the formation of a thinner, more delicate outer layer enveloping the still-hot interior. As the interior continues to cool, the shell expands further under its own momentum. Finally, the remnant merges with the surrounding interstellar medium, culminating in the formation of a fully-fledged supernova remnant.

Notable examples of supernova remnants include the Crab Nebula, the remnants of SN 1572, and Kepler, the remnants of SN 1604, named after Johannes Kepler. G1.9+0.3, discovered in the galactic centre, stands as the most recent known remnant within our galaxy.


Etymology

The word "supernova" originates from Latin, where "super" means "above" or "beyond," and "nova" translates to "new." The word "remnant" comes from the Latin term "remanens," which means "remaining" or "leftover."


Sample Sentence(s)

Supernova remnants are very important to the structure of galaxies.” Mathis, J. S. (Invalid Date). supernova remnant. Encyclopedia Britannica. https://www.britannica.com/science/supernova-remnant

 

Translations of Terms/Concepts into Partner Languages

French
Rémanent de supernova

German
Supernovaüberrest

Italian
Resto di supernova

Polish
Pozostałość po supernowej

Swedish
Supernovarest

 

Additional Translations of Terms/Concepts into Other Lang...

Turkish
Süpernova kalıntısı

Dutch

Supernovarest

Spanish

resto de supernova

Portuguese

Remanescente de supernova

 

Links to Videos/Articles:

Astrum. (2016a, January 29). Supernova Remnants | Hubble Images 4K | Episode 2 [Video]. YouTube.


 
Mathis, J. S. (Invalid Date). supernova remnant. Encyclopedia Britannica. https://www.britannica.com/science/supernova-remnant
 
Supernova Remnant. (n.d.). NASA. https://www.nasa.gov/multimedia/imagegallery/image_feature_684.html
 
Reynolds, S. P. (2008). Supernova Remnants at High Energy. Annual Review of Astronomy and Astrophysics, 46(1), 89–126. https://doi.org/10.1146/annurev.astro.46.060407.145237
 


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