Astronomy:H2356-309

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H2356-309
Observation data (Epoch )
ConstellationSculptor[1]
Right ascension 23h 59m 0.7903s[2]
Declination−30° 37′ 40.67″[2]
Redshift0.1654[2]
Distance2 billion light-years[1]
See also: Quasar,List of quasars]]

H2356-309 is a blazar (a type of active galactic nucleus) located behind the Sculptor Wall.

Discovery

Using the Chandra X-ray Observatory and the XMM-Newton, scientists have detected a warm-hot intergalactic medium (WHIM) between galaxies in the Sculptor Wall. Scientists observed the absorption of a background light source in the warm-hot intergalactic medium. This background source is the blazar H2356-309.

Application

Characteristics of this absorption in the Sculptor Wall by the oxygen atoms in particular are similar to the absorption of the oxygen atoms in warm-hot intergalactic medium, giving scientists more assurance they can find other sources that compare to warm-hot intergalactic medium. There are also similarities in the predicted temperature and density of the warm-hot intergalactic medium compared to the Sculptor Wall.[3]

References

  1. ↑ 1.0 1.1 "H2356-309: X-ray Discovery Points to Location of Missing Matter". https://chandra.harvard.edu/photo/2010/h2356/. Retrieved 28 November 2019. 
  2. ↑ 2.0 2.1 2.2 "QSO B2356-309". http://simbad.u-strasbg.fr/simbad/sim-id?Ident=H2356-309&submit=submit+id. Retrieved 27 November 2019. 
  3. ↑ Fang, Taotao (2010). "Confirmation of X-Ray Absorption by Warm-Hot Intergalactic Medium in the Sculptor Wall". The Astrophysical Journal 714 (2): 1715–1724. doi:10.1088/0004-637X/714/2/1715. Bibcode: 2010ApJ...714.1715F. 



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