Henize 70

From testwiki
Jump to navigation Jump to search

Template:Short description Template:Infobox nebula

Henize 70 (N70) is a faint[1] emission nebula[2] and superbubble[3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]Template:Over-citation located in the Large Magellanic Cloud in the constellation of Dorado.

Observation history

Henize 70 was first observed in 1950 in a survey of bright planetary nebulae. Based on appearance it was proposed that it might be a supernova remnant.[1] In 1956, it was added to a catalogue of Hα emission stars and nebulae by Karl Gordon Henize, where it was described as an emission nebula rather than a planetary nebula.[2]

Origins

ESO image of Henize 70

A paper published in 1978 proposed that the formations of Henize 70 and other emission nebulae could be due to stellar winds.[18] Later in 1981, a scientific article mentioned a higher likeliness of a supernova explosion forming the nebula instead of stellar winds.[19] A 2014 study measured that Henize 70 featured high SII and Hα ratios, indicating that it is not a supernova remnant.[20]

Henize 70 has spectral line ratios relatively similar to that of supernova remnants due to having similar SII/Hα line ratios although most supernova remnants have higher NII/Hα line ratios.[21]

Notes

Template:Notelist

References

Template:Reflist

Template:Dorado

  1. ↑ 1.0 1.1 Cite error: Invalid <ref> tag; no text was provided for refs named pn
  2. ↑ 2.0 2.1 Cite error: Invalid <ref> tag; no text was provided for refs named henize
  3. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named apod
  4. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named astrogallery
  5. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named esoimage
  6. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named nasa
  7. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named Cruz2016
  8. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named Sommer2014
  9. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named Rosado2014
  10. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named Gonzalez2011
  11. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named Rosado2011
  12. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named Sankrit2007
  13. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named Danforth2006
  14. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named Oey2004
  15. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named Oey1996a
  16. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named Oey1996b
  17. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named Chu1990
  18. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named meaburn
  19. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named supernova
  20. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named nonsnr
  21. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named skelton
Retrieved from "https://en.wiki.beta.math.wmflabs.org/w/index.php?title=Henize_70&oldid=47048"