V883 Orionis

V883 Orionis

The location of V883 Orionis (circled)
Observation data
Epoch       Equinox
Constellation Orion
Right ascension 05h 38m 18.1s[1]
Declination −07° 02′ 26″[1]
Characteristics
Variable type FU Ori
Astrometry
Distance414 ± 7[2] pc
Details
Mass1.29 ± 0.02[2] M☉
Luminosity (bolometric)6[2] L☉
Age0.5[2] Myr
Other designations
V883 Ori, HBC 489
Database references
SIMBADdata

V883 Orionis is a protostar in the constellation of Orion. It is associated with IC 430 (Haro 13A), a peculiar Hα object surveyed by Guillermo Haro in 1952.[3] It is located about 1350 light years (414 parsecs) away,[2] and is associated with the Orion Nebula.[4]

V883 Orionis, like most protostars, is surrounded by a circumstellar disc of dust. The dust has a water snow line, a certain distance where the stellar irradiance from the star is low enough that water can freeze to snow. The water snow line was directly imaged by ALMA, when a stellar outburst increased the amount of insolation and pushed the line out farther.[2]

References

  1. 1 2 "V883 Ori". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 20 February 2017.
  2. 1 2 3 4 5 6 Cieza, Lucas A.; et al. (2016). "Imaging the water snow-line during a protostellar outburst". Nature. 535 (7611): 258–261. arXiv:1607.03757. Bibcode:2016Natur.535..258C. doi:10.1038/nature18612.
  3. ↑ Allen, D. A.; Strom, K. M.; Grasdalen, G. L.; Strom, S. E.; Merrill, K. M. (1975). "Haro 13a: A Luminous, Heavily Obscured Star in Orion?". Monthly Notices of the Royal Astronomical Society. 173: 47P. Bibcode:1975MNRAS.173P..47A. doi:10.1093/mnras/173.1.47P.
  4. ↑ "The star V883 Orionis in the constellation of Orion'". ESO.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.