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List of all known (extra)galactic supernova remnants at The Open Supernova Catalog Archived 2016-03-03 at the Wayback Machine. Chandra Galactic SNR gallery; SNRcat, the online high-energy catalogue of supernova remnants
SN 1054 remnant (Crab Nebula). A supernova remnant (SNR) is the structure resulting from the explosion of a star in a supernova. The supernova remnant is bounded by an expanding shock wave, and consists of ejected material expanding from the explosion, and the interstellar material it sweeps up and shocks along the way.
SNR G054.1+00.3, also called G54.1+0.3, 2E 4258 and 2E 1928.3+1846 [1] is a supernova remnant located in the constellation Sagittarius. It was identified as a supernova remnant in a study of the galactic plane in the radio continuum at wavelengths of 21 and 11 cm. [ 2 ]
The estimated age of CTB 1 is 10,000 years, although the uncertainty of this value can be as high as 20%. [7] Other studies give it a greater age, around 16,700 years. [8] On the other hand, there is also no consensus regarding the distance at which this supernova remnant is located.
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SN 1054 remnant (Crab Nebula)A supernova is an event in which a star destroys itself in an explosion which can briefly become as luminous as an entire galaxy.This list of supernovae of historical significance includes events that were observed prior to the development of photography, and individual events that have been the subject of a scientific paper that contributed to supernova theory.
3C 392 is a supernova remnant of mixed morphology characterized by a bright radio-band shell and concentrated thermal X-ray emission from its center. In the radio band, 3C 392 has the appearance of a quasi-elliptic asymmetric bright shell, its emission being most intense along the eastern boundary; in the western region a bright arc can be seen. [3]
The search for a supernova remnant was futile until 1952, when Robert Hanbury Brown and Cyril Hazard reported a radio detection at 158.5 MHz, obtained at the Jodrell Bank Observatory. [13] This was confirmed, and its position more accurately measured in 1957 by Baldwin and Edge using the Cambridge Radio Telescope working at a wavelength of 1.9 ...