PSO J030947.49+271757.31
PSO J030947.49+271757.31, sometimes shortened to PSO J0309+27, is the most distant known blazar. It lies in Aries. The blazar has a redshift of 6.1, meaning its light took almost 13 billion years to reach Earth, when the universe was about 1 billion years old, and its present comoving distance is about 30 billion light-years. It was discovered by a team of researchers led by Silvia Belladitta, a Ph.D. student at the University of Insubria, working for the Italian National Institute for Astrophysics (INAF) in Milan, Italy.[1]
| PSO J030947.49+271757.31 | |
|---|---|
| Observation data (Epoch J2000) | |
| Constellation | Aries |
| Right ascension | 03h 09m 47.49s |
| Declination | +27° 17′ 57.31″ |
| Redshift | 6.1 |
| Distance | 12.7 billion ly (4.0 billion pc) (light travel distance) 27.6 billion ly (8.5 billion pc) (proper distance) |
| Type | Blazar |
| Other designations | |
| PSO J0309+27 | |
| See also: Quasar, List of quasars | |
References
- "Astronomers report most distant blazar ever observed". phys.org. March 9, 2020. Retrieved 27 March 2020.
Further reading
- S. Belladitta, A. Moretti, A. Caccianiga, C. Spingola, P. Severgnini, R. Della Ceca, G. Ghisellini, D. Dallacasa, T. Sbarrato, C. Cicone, L. P. Cassarà, M. Pedani (6 February 2020), "The first blazar observed at z>6", Astronomy & Astrophysics, doi:10.1051/0004-6361/201937395CS1 maint: uses authors parameter (link)
- Ferreira, Becky (March 9, 2020). "An Ancient Black Hole as Heavy as a Billion Suns Is Pointed Right At Us". Vice Motherboard.
The blazar—powered by an extremely bright black hole that can blast a hole through galaxies—is the most ancient ever discovered, sending radio signals from the early universe
- Matt Williams (March 19, 2020). "Blazar Found Blazing When the Universe was Only a Billion Years Old". Universe Today.
- Monzon, Inigo (March 12, 2020). "Ancient Supermassive Black Hole Aiming At Earth With Particle Beam". International Business Times.
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