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IRAS 13224-3809

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Coordinates: Sky map 13h 25m 19.38s, −38° 24′ 52.61″
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IRAS 13224-3809
DESI Legacy Surveys image of IRAS 13224-3809
Observation data (J2000[1] epoch)
ConstellationCentaurus[2]
Right ascension13h 25m 19.38s[1]
Declination−38° 24′ 52.61″[1]
Redshift0.06580 ± 0.00018
Distance1 billion light-years[3]
Apparent magnitude (V)13.80[4]
Other designations
2MASX J13251937-3824524; 2MASS J13251937-3824526; GSC 07787-00931; IRAS F13224-3809; PGC 88835; 1RXS J132519.4-382445; WISE J132519.39-382452.5; Gaia DR2 6162481890199388928[1]

IRAS 13224-3809 is a highly active and fluctuating Seyfert 1 galaxy in the constellation Centaurus[2] about 1 billion light-years from Earth.[3][5][6] The galaxy is notable due to its centrally-located supermassive black hole that is closely studied by astronomers using x-ray astronomy, particularly X-ray reverberation echo mapping techniques, in an effort to better understand the inner workings, including mass and spin, of black holes.[3][5]

X-Ray reverberation echo studies of black holes (video; 3:33)

References

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  1. ^ a b c d Staff (20 January 2020). "2MASX J13251937-3824524 - Seyfert 1 Galaxy". SIMBAD. Retrieved 20 January 2020.
  2. ^ a b Staff (2 August 2008). "Finding the constellation which contains given sky coordinates". DJM.cc. Retrieved 20 January 2020.
  3. ^ a b c Drake, Nadia (20 January 2020). "Astronomers just got a deep peek at a black hole - Using a technique akin to echolocation, scientists were able to map the region around a distant black hole's event horizon in unprecedented detail". National Geographic Society. Archived from the original on 20 January 2020. Retrieved 20 January 2020.
  4. ^ "Search specification: IRAS 13224-3809". HyperLeda. Université Claude Bernard Lyon 1. Retrieved 23 February 2021.
  5. ^ a b Alston, William N.; et al. (20 January 2020). "A dynamic black hole corona in an active galaxy through X-ray reverberation mapping". Nature Astronomy. 4 (6): 597–602. arXiv:2001.06454. Bibcode:2020NatAs...4..597A. doi:10.1038/s41550-019-1002-x. hdl:1721.1/129519. S2CID 210713866. Retrieved 20 January 2020.
  6. ^ University of Southampton (20 January 2020). "Echoes of light help scientists map the behaviour of a black hole". Technology.org. Retrieved 20 January 2020.
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