Astronomy:G290.1−0.8

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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 ascension 10h 59m 25.36s[1]
Declination−61° 18′ 42.6″[1]
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[2]) is a supernova remnant in the constellation Carina.[3] It is located in the Galactic plane of the galaxy in the Carina arm.[4]

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. ↑ 1.0 1.1 "NAME MSH 11-61A". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NAME+MSH+11-61A. 
  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" (in en-US). The Astrophysical Journal 810 (1): 43. doi:10.1088/0004-637X/810/1/43. ISSN 1538-4357. Bibcode: 2015ApJ...810...43A. https://dspace.mit.edu/handle/1721.1/99908. 
  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. doi:10.1111/j.1365-2966.2006.10325.x. ISSN 0035-8711. Bibcode: 2006MNRAS.369..416R. 
  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. doi:10.1086/324155. Bibcode: 2002ApJ...564..284S. https://iopscience.iop.org/article/10.1086/324155/fulltext/54479.text.html. 



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