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5 clusters · 37 sources · 48 days · First seen about 2 months ago · Last updated 5 days ago

Euclid telescope expands record‑old quasar sample

Overview

The European Space Agency’s Euclid telescope has confirmed a census of 31 high‑redshift quasars (z ≈ 6.6–7.8) from its first 1½ years of the Wide Survey, covering about 3 000 deg². The sample more than doubles the known population from the Universe’s first billion years and includes 12 objects at z ≥ 7, with two—EUCL J172902.75+641018.1 (z ≈ 7.77) and EUCL J125308.55+705432.3 (z ≈ 7.69)—still the most distant quasars ever recorded. These objects emitted light approximately 670 million years after the Big Bang, placing them within the Universe’s reionisation epoch.

Follow‑up spectroscopy with ground‑based facilities such as Keck, Magellan and the Large Binocular Telescope has verified their redshifts and revealed supermassive black holes of hundreds of millions to billions of solar masses. The discovery of these luminous galactic nuclei, which can shine with the brightness of a trillion suns, provides a new laboratory for probing rapid early black‑hole growth and the infancy of galaxies.

Lead author Daming Yang and co‑author Joseph Hennawi stress that the existence of such massive black holes so early challenges current formation models, implying either massive seed black holes or accretion rates far exceeding prior expectations. Published in Astronomy & Astrophysics, the work underscores Euclid’s broader scientific value beyond its primary dark‑energy mission, establishing the first large-scale quasar inventory from the first 5% of cosmic history and setting the stage for deeper investigations with upcoming observatories.

Entities

Daming Yang · European Space Agency · Euclid telescope · Euclid space telescope · Joseph Hennawi

Timeline

5 days ago

[TECHNOLOGY] 3 sources
Euclid telescope discovers oldest known quasar in early universe
Using the Euclid telescope, astronomers have discovered 31 early-universe quasars, including the oldest ever observed, to help explain how supermassive black holes formed so rapidly.
20 days ago

[TECHNOLOGY] 2 sources
Euclid telescope uncovers 31 ancient quasars, including two oldest known
ESA’s Euclid telescope identified 31 ancient quasars, two dating 13.1 billion years old, shedding light on early supermassive black holes.
about 2 months ago

[INTERNATIONAL] 7 sources
ESA's Euclid Telescope Discovers 31 Ancient Quasars, Two Record‑Oldest
ESA's Euclid telescope has found 31 early‑universe quasars, including two record‑oldest at 670 Myr after the Big Bang, shedding new light on rapid supermassive black‑hole growth.
about 2 months ago

[TECHNOLOGY] 3 sources
Ancient Quasars Challenge Early Universe Black‑Hole Growth Models
Euclid telescope discovers 31 early quasars, including two from 13.1 billion years ago, deepening the mystery of how massive black holes formed in the universe’s infancy.
about 2 months ago

[TECHNOLOGY] 22 sources
Euclid telescope discovers 31 ancient quasars, two oldest ever observed
Euclid telescope has found 31 quasars from the early universe (z 6.6‑7.8), including two record‑oldest at redshift 7.77 and 7.69, dating to when the cosmos was ~5 % of its current age.

Sources

24-ore.com · assodigitale.it · astronomie.nl · audiblogs.com · brasilemfolhas.com · brasilemfolhas.com.br · chinesepress.com · climatekids.nasa.gov · conowego.pl · cumbernauld-media.com · cyu.edu.cn · finance.technews.tw · frasersherman.com · friendsofnasa.org · generation-nt.com · indianmasterminds.com · inversion.es · it-boltwise.de · it-online.co.za · japantoday.com · kfgo.com · olhardigital.uol.com.br · osul.com.br · ref68.com · scientificamerican.com · scitechdaily.com · sportmotorcycles.com · staiattento.com · tecnologia.libero.it · telepolis.pl · thebrighterside.news · thecooldown.com · themegarden.com · viagemegastronomia.com.br · vizionplus.tv · wtvbam.com · wykop.pl

This summary has been updated 1 time: see revision history