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Homunculus nebula

The Homunculus Nebula is a bipolar emission and reflection nebula surrounding the massive star system Eta Carinae. It is located about 7,500 light years away from the Earth. The nebula is located deep within the much larger Carina Nebula, a large star-forming H II region.

From the Latin homunculus meaning Little Man, the nebula consists of gas which was ejected from Eta Carinae during the Great Eruption, which occurred about 7,500 years before it was observed on Earth, from 1838 to 1845.[1]

It also contains dust which absorbs much of the light from the extremely luminous central stellar system and radiates it again as infra-red (IR). It is the brightest object in the sky at mid-IR wavelengths.[2]

The Homunculus nebula surrounding Eta Carinae

Within the Homunculus is a smaller Little Homunculus, and within that a shell of shocked material from stellar winds that has been called Baby Homunculus[3]

References

  1. ↑ Teodoro, M.; Damineli, A.; Sharp, R. G.; Groh, J. H.; Barbosa, C. L. (2008). "Near-infrared integral field spectroscopy of the Homunculus nebula around η Carinae using Gemini/CIRPASS". Monthly Notices of the Royal Astronomical Society. 387 (2): 564. arXiv:0804.0240. Bibcode:2008MNRAS.387..564T. doi:10.1111/j.1365-2966.2008.13264.x. S2CID 2460614.
  2. ↑ Smith, Nathan (2012). "All Things Homunculus". Eta Carinae and the Supernova Impostors. Astrophysics and Space Science Library. Vol. 384. pp. 145–169. arXiv:0906.2204. Bibcode:2012ASSL..384..145S. doi:10.1007/978-1-4614-2275-4_7. ISBN 978-1-4614-2274-7. S2CID 6275803.
  3. ↑ Abraham, Zulema; Falceta-Gonçalves, Diego; Beaklini, Pedro P. B. (2014). "Η Carinae Baby Homunculus Uncovered by A/km/kmLMA". The Astrophysical Journal. 791 (2): 95. arXiv:1406.6297. Bibcode:2014ApJ...791...95A. doi:10.1088/0004-637X/791/2/95. S2CID 62893264. Cite error: Invalid parameter "nams" in <ref> tag. Did you mean "name"?

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