Astrophysics (Index)About

IRAS 13224-3809

(active Seyfert galaxy with well-studied SMBH)

IRAS 13224-3809 is a Seyfert galaxy on the order of a million light-year distant. Its X-ray emission shows striking variability and tts supermassive black hole has been studied with reverberation mapping, yielding estimates of the SMBH size and mass. One mass determination was 1.9×106 solar masses, corresponding to a Schwarzschild radius of 8 solar radii, which should be the same order-of-magnitude as the radius of its event horizon, but somewhat different due to any rotation.


(galaxy,Seyfert)
Further reading:
https://en.wikipedia.org/wiki/IRAS 13224-3809
https://ui.adsabs.harvard.edu/abs/2015A%26A...582A..40K/abstract
https://ui.adsabs.harvard.edu/abs/2019MNRAS.482.2088A/abstract
RedshiftParsecs
/Distance
Lightyears
/Lookback Years
  
.066273Mpc890MlyIRAS 13224-3809
Coordinates:IRAS 13224-3809
J132519.38-382452.61

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