Puppis A

Puppis A

Supernova
name = Puppis A


caption = X-ray image of the Cosmic Cannonball in Puppis A
epoch = J2000
type = S
host = Milky Way
constellation = Puppis
gal = "l" = 260.2°, "b" = -3.7°
ra = 08h 24m 07s
dec =-42° 59' 48
discovery =
iauc =
mag_v =
distance = 7.000 Ly
progenitor = Unknown
progenitor_type = Unknown
b-v = Unknown
notes = central source: RX J0822-4300.

Puppis A is a supernova remnant about 10 light-years in diameter, and one of the brightest sources in the X-ray sky. The supernova occurred approximately 3700 years ago. Its X-ray designation is 2U 0821-42.

A hypervelocity neutron star known as the Cosmic Cannonball‎ has been found in this SNR traveling ~3 million miles per hour.

References

*"Puppis A: Chandra Reveals Cloud Disrupted By Supernova Shock", Chandra: NASA/CXC/GSFC/U.Hwang et al.; ROSAT: NASA/GSFC/S.Snowden et al., [http://chandra.harvard.edu/photo/2006/puppisa/http://www.sciencedaily.com/releases/2007/11/071128151817.htm]
* [http://simbad.u-strasbg.fr/simbad/sim-id?protocol=html&Ident=SNR+260.4-3.4&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id Simbad]

ee also

* List of supernova remnants


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