A speck in the early universe


Credit: Sphingola et al.; Bill Saxon, NRAO / AUI / NSF.

The National Science Foundation’s Very Long Baseline Array (VLBA) ‘s superspark radio’ vision ‘reveals details previously unseen in a jet of material emitting at three-quarters the speed of light at a distance of 12.8 billion light years from the core of a galaxy. Have done Earth. The galaxy, called PSO J0309 + 27, is an explosion, whose jet points towards Earth, and is the brightest radio-emitting explosion that has been seen so far. It is also the second brightest X-ray emitting blazer at such a distance.

In this image, the brightest radio emission comes from the galaxy’s core, below right. The jet is driven by the gravitational energy of a supermassive black hole at the core, and moves outward toward the upper left. The jet seen here emits about 1,600 light-years, and shows the structure within it.

At this distance, PSO is seen as J0309 + 27 when the universe was less than a billion years old, or just over 7 percent of its current age.

An international team of astronomers, led by Christiana Spingola of the University of Bologna in Italy, observed the galaxy in April and May of 2020. His analysis of the properties of the object provides support for some theoretical models of why blazers are rare in the early universe. The researchers reported their results in the journal Astronomy and Astrophysics.


Astronomers report farthest blazer ever seen


more information:
C. Spingola et al., Scale properties of genius ZnN on radio-talented ZnN 6, 6 Astronomy and Astrophysics (2020). DOI: 10.1051 / 0004-6361 / 202039458

Provided by the National Radio Astronomy Observatory

Quotes: An Explosion in the Early Universe (2020, 22 December) Retrieved on 24 December 2010 from https://phys.org/news/2020-12-blazar-early-universe.html.

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