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2mo ago

Hubble Confirms Starless ‘Cloud-9’ as Dark-Matter RELHIC as Lensing Reveals a Distant Dark Disruptor

The peer-reviewed findings create new tests of galaxy formation through objects that emit no starlight.

Alejandro Benítez-Llambay, astrofísico argentino, participó del estudio que permitió identificar por primera vez este tipo de estructura cósmica con el Telescopio Espacial Hubble
Un equipo de astrónomos identificó un objeto completamente oscuro ubicado a unos 11 mil millones de años luz de la Tierra. (Imagen referencial creada por El Comercio MAG usando la IA de "Perplexity")
Los sistemas de monitoreo espacial detectaron el acercamiento del asteroide 2025 YH6, un objeto de unos 70 metros de diámetro. (Imagen referencial creada por El Comercio MAG usando la IA de "Perplexity")
Un equipo de la NASA identificó por primera vez un objeto espacial sin estrellas, apodado Cloud-9, gracias a observaciones del telescopio Hubble. (Imagen referencial creada por El Comercio MAG usando la IA de "Perplexity")

Overview

  • NASA’s Hubble Advanced Camera for Surveys verified that Cloud-9 contains no stars, confirming a gas-rich, dark-matter-dominated RELHIC about 14 million light-years away.
  • Cloud-9, first flagged by China’s FAST radio telescope three years ago, is reported in The Astrophysical Journal Letters as the first confirmed detection of this predicted class.
  • A separate Nature Astronomy paper dated January 5 details a completely dark object within lens system JVAS B1938+666 roughly 11 billion light-years distant.
  • The lensing analysis reconstructs a mass near one million suns with a compact central component consistent with a dense nucleus or black hole and an unusually extended outer profile.
  • Teams are preparing deeper follow-up, including JWST searches for faint emission, to determine whether these objects fit “failed” galaxy scenarios or demand revisions to current models.