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G290.1-0.8

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Supernova remnant
G290.1-0.8
Nebula
Composite image of IGR J11014-6103 and MSH 11-61A that contains data from NASA's Chandra X-ray Observatory (purple), radio data from the Australia Compact Telescope Array (green), and optical data from the 2MASS survey (red, green, and blue)Composite image of IGR J11014-6103 and MSH 11-61A that contains data from NASA's Chandra X-ray Observatory (purple), radio data from the Australia Compact Telescope Array (green), and optical data from the 2MASS survey (red, green, and blue)
Observation data: J2000 epoch
Right ascension10 59 25.36
Declination−61° 18′ 42.6″
ConstellationCarina
Notable featuresPossible undiscovered neutron star and two bright spots
See also: Lists of nebulae

G290.1-0.8 (also known as MSH 11-61A) is a supernova remnant in the constellation Carina. It is located in the Galactic plane of the galaxy in the Carina arm.

The supernova remnant has two bright spots opposite symmetric to each other on a symmetry axis running towards north west-south east direction. Theses bright spots are not homogeneous to the rest of the supernova remnant and had not reached ionization equilibrium yet.

This suggests that there might be a neutron star that has not been discovered yet. The rest of the supernova remnant originated from a high mass star that went supernova with a possible strong bipolar wind.

References

  1. ^ "NAME MSH 11-61A". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2024-10-26.
  2. Auchettl, Katie; Slane, Patrick; Castro, Daniel; Foster, Adam R.; Smith, Randall K. (August 27, 2015). "Multi-wavelength analysis of the galactic supernova remnant MSH 11-61A". The Astrophysical Journal. 810 (1): 43. arXiv:1507.08012. Bibcode:2015ApJ...810...43A. doi:10.1088/0004-637X/810/1/43. hdl:1721.1/99908. ISSN 1538-4357. S2CID 28209347.
  3. Reynoso, Estela M.; Johnston, Simon; Green, Anne J.; Koribalski, Bärbel S. (2006-06-01). "High-resolution HI and radio continuum observations of the SNR G290.1-0.8". Monthly Notices of the Royal Astronomical Society. 369 (1): 416–424. arXiv:astro-ph/0603533. Bibcode:2006MNRAS.369..416R. doi:10.1111/j.1365-2966.2006.10325.x. hdl:11336/21020. ISSN 0035-8711. S2CID 9215987.
  4. Petre, Robert; Hughes, John P.; Smith, Randall K.; Slane, Patrick (January 1, 2002). "An X-Ray Study of the Supernova Remnant G290.1-0.8". The Astrophysical Journal. 564 (564): 284–290. arXiv:astro-ph/0108473. Bibcode:2002ApJ...564..284S. doi:10.1086/324155. S2CID 119506523.
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