Gomez's Hamburger

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Gomez's Hamburger
Hamburger hst.jpg
IRAS 18059-3211 as seen by Hubble

Gomez's Hamburger is believed to be a young star surrounded by a protoplanetary disk.[1] It was initially identified as a planetary nebula (i.e. an old dying star), and its distance therefore wrongly estimated to be approximately 6500 light-years away from planet Earth.[2] However, recent results suggest that this object is a young star surrounded by a protoplanetary disk. This distance is about 900 light-years away.[1][3]

It was discovered in 1985 on sky photographs obtained by Arturo Gomez, support technical staff at the Cerro Tololo Inter-American Observatory near Vicuña, Chile.[4] The photos suggested that there was a dark band across the object, but its exact structure was difficult to determine because of the atmospheric turbulence that hampers all images taken from the ground. The star itself has a surface temperature of approximately 10,000 °C (18,000 °F).

The "hamburger buns" are light reflecting off dust, and the "petit paté" is the dark band of dust in the middle.

References[edit]

  1. ^ a b V. Bujarrabal, K. Young, D. Fong (2008). "Gomez's Hamburger (IRAS 18059-3211): A pre main-sequence A-type star". The Astrophysical Journal 688 (2): 1118–1123. arXiv:0807.2398. Bibcode:2008ApJ...688.1118W. doi:10.1086/592185. 
  2. ^ "Hubble Astronomers Feast on an Interstellar Hamburger". Space Telescope Science Institute. August 1, 2002. Retrieved 2008-12-28. 
  3. ^ Wood, K.; Whitney, B.A.; Robitaille, T.; Draine, B.T. (2008). "Emission from Very Small Grains and PAH Molecules in Monte Carlo Radiation Transfer Codes: Application to the Edge-On Disk of Gomez's Hamburger". Astronomy and Astrophysics. arXiv:0803.1438. Bibcode:2008yCat..34830839B. doi:10.1051/0004-6361:20079273. 
  4. ^ "Gomez's Hamburger".