N49 or LMC N49[3] (PKS 0525-66,[1][3] PKS B0525-661,[3] PKS J0525-6604,[3] SNR J052559-660453[1]), also known as Brasil Nebula,[4] is the brightest supernova remnant in the Large Magellanic Cloud, approximately 160,000 light-years from Earth. Its form has been assessed to be roughly 5,000 years old.[2]
| Supernova remnant | |
|---|---|
 | |
| Observation data: J2000.0[1] epoch | |
| Right ascension | 05h 26m 01.00s[1] |
| Declination | −66° 05′ 06.0″[1] |
| Distance | 160,000[2] ly |
| Apparent magnitude (V) | 12.71[1] |
| Constellation | Dorado |
| Physical characteristics | |
| Dimensions | 75 ly across[2] |
| Designations | LMC N49,[3][1] PKS 0525-66,[3][1] PKS B0525-661,[3][1] PKS J0525-6604,[3][1] SNR J052559-660453[3][1] |
Wikimedia Commons has media related to N49.
The latest pictures of N49 by the Chandra X-ray Observatory have revealed a bullet-shaped object traveling at about 5 million miles an hour away from a bright X-ray and gamma-ray point source, probably a neutron star with an extremely powerful magnetic field, known as a soft gamma repeater.[2] A particularly strong gamma-ray burst from LMC N49 was detected on March 5, 1979.[5]
References
edit- ^ a b c d e f g h i j k "SNR J052559-660453". SIMBAD. Centre de données astronomiques de Strasbourg.
- ^ a b c d Chandra X-ray Observatory (2010-05-24). "N49: Stellar Shrapnel Seen in Aftermath of Explosion". Retrieved 2015-10-15.
- ^ a b c d e f g h i "PKS 0525-66". NASA/IPAC Extragalactic Encyclopedia.
- ^ Sky & Telescope, august 2004, page 12
- ^ "N49, an asymmetric supernova remnant in the LMC". 2012-08-30. Retrieved 2015-10-15.
- Harvard-Smithsonian Center for Astrophysics, "N49: A supernova remnant in the Large Magellanic Cloud"