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PSO J030947.49+271757.31, sometimes shortened to PSO J0309+27, is the most distant known blazar, as of 2020. 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]
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, 635: L7, arXiv:2002.05178, Bibcode:2020A&A...635L...7B, doi:10.1051/0004-6361/201937395
- 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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