Gomez's Hamburger
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Sagittarius |
| Right ascension | 18h 09m 13.3s |
| Declination | −32° 10' 48"' |
| Apparent magnitude (V) | 14.4 |
| Characteristics | |
| Spectral type | A0III D ~ |
| Database references | |
| SIMBAD | data |
| Other designations | |
IRAS 18059-3211 | |
Gomez's Hamburger, also known as IRAS 18059-3211, is believed to be a young star surrounded by a protoplanetary disk.[1] It was initially identified as a planetary nebula, and its distance was estimated to be approximately 6500 light-years away from Earth.[2] However, recent results suggest that this object is a young star surrounded by a protoplanetary disk, at a distance of about 900 light-years away.[1][3][4]
It was discovered in 1985 on sky photographs obtained by Arturo Gómez, support technical staff at the Cerro Tololo Inter-American Observatory near Vicuña, Chile.[5] 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 K.
The "buns" are light reflecting off dust. A disk of dust seen nearly exactly edge-on obscures the star and produces the dark band in the middle, the "burger".[1] It has a dim visual magnitude of 14.4.
References
- ^ a b c V. Bujarrabal; K. Young; D. Fong (2008). "Gomez's Hamburger (IRAS 18059-3211): A pre main-sequence A-type star". Astronomy and Astrophysics. 483 (1): 203–210. arXiv:0803.1438. Bibcode:2008A&A...483..839B. doi:10.1051/0004-6361:20079273.
- ^ "Hubble Astronomers Feast on an Interstellar Hamburger". Space Telescope Science Institute. August 1, 2002. Retrieved 2008-12-28.
- ^ 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". Astrophysical Journal. 688 (2): 1118–1123. arXiv:0807.2398. Bibcode:2008ApJ...688.1118W. doi:10.1086/592185.
- ^ V. Bujarrabal; K. Young; C. Castro-Carrizo (2009). "The physical conditions in Gomez's Hamburger (IRAS 18059-3211), a pre-MS rotating disk". Astronomy and Astrophysics. 500 (3): 1077–1087. arXiv:0901.4256. Bibcode:2009A&A...500.1077B. doi:10.1051/0004-6361/200811233.
- ^ "Gomez's Hamburger".
 | This star-related article is a stub. You can help Wikipedia by expanding it. |
 | This nebula-related article is a stub. You can help Wikipedia by expanding it. |