W49B (also known as SNR G043.3-00.2 or 3C 398) is a nebula in Westerhout 49 (W49). The nebula is a supernova remnant, probably from a type Ib or Ic supernova...
6 KB (713 words) - 16:46, 21 March 2024
W49B to understand the thermodynamic properties and explosive origin of the SNR. The observed electron temperature and absorbing column toward W49B suggest...
8 KB (661 words) - 20:40, 3 April 2024
10.8s −69° 19′ 54.2″ 350–1250 CE ? 160,000 ? neutron star PSR J0540−6919 W49B 19h 11m 09s +09° 06′ 24″ About 1000 CE ? 26,000 Ib or Ic unidentified black...
13 KB (382 words) - 03:29, 9 September 2024
star was disrupted may have given rise to the enigmatic supernova remnant W49B. Fast blue optical transients might constitute CEJSNs as well. This process...
12 KB (1,661 words) - 18:01, 17 July 2024
solar masses, and is also one of the most luminous and massive stars known. W49B List of most massive stars "Uncloaking the King of the Milky Way: The largest...
5 KB (563 words) - 18:11, 22 July 2024