Bipolar_nebula

Bipolar nebula

Bipolar nebula

Type of nebula that has two lobes extending from a central star

A bipolar nebula is a type of nebula characterized by two lobes either side of a central star. About 10-20% of planetary nebulae are bipolar.[2]

Bipolar planetary nebula PN Hb 12.[1]

Formation

Though the exact causes of this nebular structure are not known, it is often thought to imply the presence of a binary central star with a period of a few days to a few years. As one of the two stars expelled its outer layers, the other disrupted the outflow of material to form the bipolar shape.[3]

Examples

Planetary Nebula M2-9, otherwise known as the Twin Jet Nebula or the Wings of a Butterfly Nebula, is a bipolar nebula.

References

  1. [1]
    "Bizarre alignment of planetary nebulae". ESA/Hubble Press Release. Retrieved 6 September 2013.
  2. [2]
    The Macquarie/AAO/Strasbourg Hα Planetary Nebula Catalogue: MASH, Parker et al. 2006, MNRAS, 373, 79
  3. [3]
    Binary Progenitor Models for Bipolar Planetary Nebulae, Soker 1998, ApJ, 496, 833
  4. [4]
    NewsCenter - Doomed Star Eta Carinae (06/10/1996) - Release Images. HubbleSite (10 June 1996). Retrieved on 26 November 2010.
  5. [5]
    Nemiroff, R.; Bonnell, J., eds. (12 July 1995). "Eta Carinae Before Explosion". Astronomy Picture of the Day. NASA. Retrieved 26 November 2010.
  6. [6]
    Nemiroff, R.; Bonnell, J., eds. (26 March 2006). "Doomed Star Eta Carinae". Astronomy Picture of the Day. NASA. Retrieved 26 November 2010.
  7. [7]
    Eta Carinae Nebula (NGC 3372). Daviddarling.info (1 February 2007). Retrieved on 26 November 2010.
  8. [8]
    HubbleSite – NewsCenter – Hubble Witnesses the Final Blaze of Glory of Sun-Like Stars (12/17/1997) – Release Images
  9. [9]
    Nemiroff, R.; Bonnell, J., eds. (12 June 2005). "M2 9: Wings of a Butterfly Nebula". Astronomy Picture of the Day. NASA. Retrieved 26 November 2010.
  10. [10]
    Nemiroff, R.; Bonnell, J., eds. (21 October 1997). "The Butterfly Planetary Nebula". Astronomy Picture of the Day. NASA. Retrieved 26 November 2010.
  11. [11]
    Butterfly Nebula (M 2-9). Daviddarling.info (1 February 2007). Retrieved on 26 November 2010.
  12. [12]
    NewsCenter - The "Rotten Egg" Nebula: A Planetary Nebula in the Making (10/19/1999) - Introduction. HubbleSite (19 October 1999). Retrieved on 26 November 2010.
  13. [13]
    APOD: 1 November 1999 - The Rotten Egg Planetary Nebula. Antwrp.gsfc.nasa.gov (1 November 1999). Retrieved on 26 November 2010.
  14. [14]
    Nemiroff, R.; Bonnell, J., eds. (3 September 2001). "The Making of the Rotten Egg Nebula". Astronomy Picture of the Day. NASA. Retrieved 26 November 2010.
  15. [15]
    Calabash Nebula (OH231.8+4.2). Daviddarling.info (1 February 2007). Retrieved on 26 November 2010.
  16. [16]
    NewsCenter - Astro-Entomology? Ant-like Space Structure Previews Death of Our Sun (02/01/2001) - Introduction. HubbleSite (1 February 2001). Retrieved on 26 November 2010.
  17. [17]
    Nemiroff, R.; Bonnell, J., eds. (1 May 2005). "Planetary Nebula Mz3: The Ant Nebula". Astronomy Picture of the Day. NASA. Retrieved 26 November 2010.
  18. [18]
    Ant Nebula (Menzel 3). Daviddarling.info (1 February 2007). Retrieved on 26 November 2010.
  19. [19]
    Tafoya, D.; Loinard, L.; Vlemmings, W.H.T.; Marti-Vidal, I.; Pech, G. (22 July 2013). "Rapid angular expansion of the ionized core of CRL 618" (PDF). Astronomy and Astrophysics. 556: A35. doi:10.1051/0004-6361/201321704. Retrieved 15 November 2020.
  20. [20]
    NewsCenter - Hubble Finds Searchlight Beams and Multiple Arcs around a Dying Star (01/16/1996) - Introduction. HubbleSite (16 January 1996). Retrieved on 26 November 2010.
  21. [21]
    Nemiroff, R.; Bonnell, J., eds. (26 June 1999). "Shells in the Egg Nebula". Astronomy Picture of the Day. NASA. Retrieved 26 November 2010.
  22. [22]
    Nemiroff, R.; Bonnell, J., eds. (9 April 2003). "The Egg Nebula in Polarized Light". Astronomy Picture of the Day. NASA. Retrieved 26 November 2010.
  23. [23]
    Egg Nebula (CRL 2688). Daviddarling.info (1 February 2007). Retrieved on 26 November 2010.
  24. [24]
    NewsCenter - Dying Star Sculpts Rungs of Gas and Dust (05/11/2004) - Release Images. HubbleSite (11 May 2004). Retrieved on 26 November 2010.
  25. [25]
    Nemiroff, R.; Bonnell, J., eds. (13 May 2004). "Rungs of the Red Rectangle". Astronomy Picture of the Day. NASA. Retrieved 26 November 2010.
  26. [26]
    Red Rectangle. Daviddarling.info (1 February 2007). Retrieved on 26 November 2010.
  27. [27]
    NewsCenter - Hubble Finds an Hourglass Nebula around a Dying Star (01/16/1996) - Release Images. HubbleSite (16 January 1996). Retrieved on 26 November 2010.
  28. [28]
    Nemiroff, R.; Bonnell, J., eds. (18 January 1996). "MyCn18: An Hourglass Nebula". Astronomy Picture of the Day. NASA. Retrieved 26 November 2010.
  29. [29]
    Nemiroff, R.; Bonnell, J., eds. (15 June 2002). "MyCn18: An Hourglass Nebula". Astronomy Picture of the Day. NASA. Retrieved 26 November 2010.
  30. [30]
    Nemiroff, R.; Bonnell, J., eds. (9 February 1996). "The Eye of an Hourglass Nebula". Astronomy Picture of the Day. NASA. Retrieved 26 November 2010.
  31. [31]
    Hourglass Nebula (MyCn 18). Daviddarling.info (1 February 2007). Retrieved on 26 November 2010.
  32. [32]
    NewsCenter - Symbiotic Star Blows Bubbles into Space (08/24/1999) - Release Images. HubbleSite (24 August 1999). Retrieved on 26 November 2010.
  33. [33]
    Nemiroff, R.; Bonnell, J., eds. (31 August 1999). "Symbiotic Star Bubbles". Astronomy Picture of the Day. NASA. Retrieved 26 November 2010.
  34. [34]
    Southern Crab Nebula (He2-104) Archived 9 October 2006 at the Wayback Machine. Daviddarling.info (1 February 2007). Retrieved on 26 November 2010.
  35. [35]
    NewsCenter - Hubble Catches Scattered Light from the Boomerang Nebula (09/13/2005) - Release Images. HubbleSite (13 September 2005). Retrieved on 26 November 2010.
  36. [36]
    Nemiroff, R.; Bonnell, J., eds. (14 September 2005). "The Boomerang Nebula in Polarized Light". Astronomy Picture of the Day. NASA. Retrieved 26 November 2010.
  37. [37]
    Nemiroff, R.; Bonnell, J., eds. (20 February 2003). "Cold Wind from the Boomerang Nebula". Astronomy Picture of the Day. NASA. Retrieved 26 November 2010.
  38. [38]
    Nemiroff, R.; Bonnell, J., eds. (15 October 1997). "Cold Wind From The Boomerang Nebula". Astronomy Picture of the Day. NASA. Retrieved 26 November 2010.
  39. [39]
    Boomerang Nebula. Daviddarling.info (1 February 2007). Retrieved on 26 November 2010.
  40. [40]
    APOD: 28 October 2001 – NGC 2346: A Butterfly-Shaped Planetary Nebula
  41. [41]
    López, J.A; Vazquez, R.; Rodriguez, L.F. (10 December 1995). "The discovery of a bipolar, rotating, episodic jet (BRET) in the planetary nebula KjPn 8". The Astrophysical Journal. 455: L63–L66. doi:10.1086/309801.

See also
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