W49B
Sign in to saveAlso known as SNR G043.3-00.2, 3C 398
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 that occurred around 1,000 years ago. It may have produced a gamma-ray burst and is thought to have left a black hole remnant.
Key facts
- Supernova.image
- Image:Supernova Remnant W49B in x-ray, radio, and infrared.jpg
- Supernova.image_size
- 280px
- Supernova.caption
- W49B image from Chandra (x-rays in blue and green), the Palomar Observatory (infrared in yellow), and Very Large Array (radio in pink)
- Supernova.epoch
- J2000.0
- Supernova.type
- S
- Supernova.constellation
- Aquila
- Supernova.gal
- 043.275 -00.190
via Wikipedia infobox
Wikidata facts
- Image
- Supernova Remnant W49B in x-ray, radio, and infrared.jpg
Show 5 more facts
- spectral class
- S
- catalog code
- 2FHL J1911.0+0905
- right ascension
- 287.787500
- declination
- 9.1066667
- Commons category
- W49B
Sources (3)
via Wikidata · CC0
~3 min read
Article
6 sectionsContents
- Nebula
- Supernova
- Remnant
- See also
- References
- External links
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 that occurred around 1,000 years ago. It may have produced a gamma-ray burst and is thought to have left a black hole remnant.
==Nebula== W49B is a supernova remnant (SNR) located roughly 33,000 light-years from Earth. Radio wavelengths show a shell four arc minutes across. There are infrared "rings" (about 25 light-years in diameter) forming a "barrel", and intense X-ray radiation coming from forbidden emission of nickel and iron in a bar along its axis. W49B is also one of the most luminous SNRs in the galaxy at gamma-ray wavelengths. It is invisible at optical wavelengths.