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A Texas research team maps the universe.Identify galaxies and black holes

AUSTIN (KXAN) – Mapping the universe has never been more accessible. Scientists at the University of Texas announced last month that they have located and mapped more than 170,000 new galaxies and nearly 5,000 black holes.

The study was published in February this year astrophysics journal.

Hetedex, Hobby Eberly Telescope Dark Energy Experimentuses the Hobby-Eberly Telescope in West Texas to detect light emitted by hydrogen from 10 billion light-years away. will let you know.

Using the telescope, researchers have identified 181,028 galaxies and 4,976 “active galactic nuclei” that indicate black holes. The project started in 2017.

The researchers used a supercomputer at the Texas Advanced Computing Center at the University of Texas, Software used to identify galaxies on dating appsAccording to the release, over 60 terabytes of data has been sorted.

Identify galaxies using redshift

The telescope examined redshift data. This shows how fast the stars are moving away from us on Earth. As a star moves away, the frequencies in the electromagnetic spectrum it emits decrease.

If the star is moving toward us, called negative redshift or blueshift, the frequency increases.

The Hobby-Eberly Telescope dark energy experiment tiles the sky by collecting spectroscopic data used to determine the positions and distances of stars and galaxies from Earth. (Top) Planned HETDEX Fall field (red) and the footprint of this catalog release (blue) sky extent, stars, Lyman alpha radiation (lae), [O II]-Emitting (oii) and non-radiating low-z galaxies [OII] Color coding for emissions (lzg). Credit: DOI: 10.3847/1538-4357/aca962.

Scientists can determine how far a star is from Earth by observing its speed. This is called Hubble’s law. The faster an object appears to be, the farther away it is. This law helps scientists understand the expansion of the universe. It is also used in the model of the Big Bang theory.

The HETDEX collaboration includes researchers from UT Austin and five other institutions in the US and Germany.

Authors of this study include Erin Mentuch Cooper, Karl Gebhardt, Dustin Davis, Daniel J. Farrow, Chenxu Liu, Gregory Zeimann, Robin Ciardullo, John J. Feldmeier, Niv Drory, and Donghui Jeong.

https://www.kxan.com/news/science/space-just-got-bigger-scientists-add-200k-objects-to-universal-map/ A Texas research team maps the universe.Identify galaxies and black holes

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