4C +37.11

From Wikipedia, the free encyclopedia
Jump to: navigation, search
4C +37.11
Observation data (J2000 epoch)
Constellation Perseus
Right ascension 04h 05m 49.2s[1]
Declination +38° 03′ 32″[1]
Redshift 16,500 ± 300 km/s[1]
Distance 750 Mly (230 Mpc) [2]
Type Sy[1]
Apparent magnitude (V) 17.2[1]
Other designations
GLXY J0405+380 , B2 0402+37 , 2MASX J04054928+3803320 , RX J0405.8+3803
See also: Galaxy, List of galaxies

4C +37.11 or Galaxy 0402+379 is a radio galaxy and elliptical galaxy featuring binary supermassive black holes with the least separation of any directly observed binaries, as of 2006. The separation between the two is 24 light-years or 7.3 parsecs, with an orbital period of 150,000 years.

The previous directly observed least separation of supermassive binary black holes was 2,400 light-years. However, quasar OJ 287 is inferred to have a binary supermassive black hole pair with an orbital period of 12 years, and thus be much closer together, but they have not been directly observed.

The eventual collision of the pair would result in strong gravitational waves.

References[edit]

  1. ^ a b c d e "NASA/IPAC Extragalactic Database". Results for 0402+379. Retrieved 26 November 2006. 
  2. ^ "Scientists Find Closest Pair of Supermassive Black Holes". PhysOrg.com. Retrieved 15 March 2008. 

External links[edit]

Coordinates: Sky map 04h 05m 49.2s, 38° 03′ 32″