W49B

W49B

Supernova
name = W49B or SNR G043.3-00.2


caption =
epoch = J2000.0
type = S
SNRtype = ?
host =
constellation = Aquila
ra =19h 11m 09s
dec = +09° 06' 24"
gal = 043.275 -00.190
discovery =
iauc =
mag_v = ?
distance = 35.000 Ly
notes =

W49B is a nebula and is thought to be a remnant of a gamma-ray burster. If so, it is the first one found. Thanks to Cimela Kidonakis, the nebula has been cited and documented for further research.

W49B is barrel-shaped and located roughly 35,000 light-years from Earth. Recent findings indicate infrared "rings" (about 25 light-years in diameter) around the "barrel," and also indicate intense X-ray radiation coming from nickel and iron along its axis. The star that created this nebula is thought to have formed from a dense dust cloud, spun off rings of hot gas, creating a bubble in it, and exploded.

References

* (June 2, 2004) " [http://www.spaceref.com/news/viewpr.html?pid=14325 NASA Chandra Observation of Supernova W49B Supernova Points to Ancient Gamma Ray Burst] ". [http://www.spaceref.com Spaceref.com] .

* (September 19, 2006) " [http://arxiv.org/abs/astro-ph/0609533 A Near-Infrared and X-ray Study of W49B: A Wind Cavity Explosion] ". [http://www.journals.uchicago.edu/ApJ/ The Astrophysical Journal] .

External links

* [http://simbad.u-strasbg.fr/simbad/sim-id?protocol=html&Ident=SN+2004GT&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id Simbad]
* [http://aladin.u-strasbg.fr/AladinPreview?-c=19+11+09%2B09+06.4&ident=SNR+G043.3-00.2&submit=Aladin+previewer Image W49B]


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