Tag

Black Hole Star

All articles tagged with #black hole star

space-and-spaceflight42 minutes ago•18 min saved

Astronomers Uncover a Black Hole Star in the Early Universe

Nature-published researchers report the discovery of MoM-BH*-1, a newly identified object that resembles a giant star but radiates energy like a black hole, wrapped in dense gas and outshining its host galaxy. Scientists label it a “black hole star,” a find that could illuminate how the first supermassive black holes formed and connect to the JWST-detected little red dots from the cosmic dawn; further JWST observations are planned to constrain its mass and atmospheric properties.

via Gizmodo|

#black-hole-star #early-universe #galaxies

space2 hours ago•2 min saved

Astronomers Detect a Solar-System-Sized Black Hole That Shines Like a Star

Using the James Webb Space Telescope, astronomers report a candidate 'black hole star' in Cetus—the reddest object MoM-BH*-1—an entity about the size of the solar system that emits far more energy than any star yet shows stellar signatures. Computer simulations suggest it is a black hole swaddled in dense gas radiating as a star, and if confirmed, such objects could exist in large numbers, potentially shaping early galaxy evolution and serving as seeds for supermassive black holes.

via The Guardian|

#black-hole-star #early-universe #james-webb-space-telescope

space2 months ago•97 min saved

Webb telescope uncovers a black hole star among the early-universe 'little red dots'

Astronomers using the James Webb Space Telescope have found deep spectral evidence that the little red dot GLIMPSE-17775, seen behind the gravitational lens Abell S1063, is a black hole star—an actively feeding supermassive black hole cocooned in dense gas. The spectrum shows unusual emission lines, an iron forest, and electron scattering consistent with a rapidly growing black hole in a cocoon, supporting the idea that many early-universe little red dots are such black-hole–driven systems and explaining their faint X-ray signals. This is the deepest spectrum to date for a little red dot, and researchers plan further follow-up to pin down the engines powering these sources.

via Space|

#abell-s1063 #black-hole-star #glimpse-17775

science2 months ago•6 min saved

Webb's Deep Spectrum Bolsters Black Hole Star Model for Early-Universe Dots

Astronomers using the James Webb Space Telescope have obtained the deepest spectrum yet of the distant 'little red dot' GLIMPSE-17775, uncovering more than 40 spectral lines that collectively support the black hole star (BH*) scenario — a rapidly accreting black hole wrapped in a dense gas cocoon. The data, including an iron forest, helium signatures, and electron scattering, together with Hubble observations, explain features like the Balmer break and why many little red dots are X-ray faint, reinforcing a coherent picture of these objects in the early universe.

via NASA Science (.gov)|

#black-hole-star #glimpse-17775 #james-webb-space-telescope

science8 months ago•8 min saved

JWST Uncovers Mysterious Red Dot and New Class of Extreme Celestial Objects

Astronomers using the James Webb Space Telescope discovered numerous mysterious red dots in distant galaxies, with one particularly extreme object called 'The Cliff' challenging existing models. New theories propose these could be 'black hole stars'—active galactic nuclei enshrouded in dense gas—potentially explaining rapid early galaxy growth and black hole formation. Further observations are needed to confirm these groundbreaking ideas.

via ScienceDaily|

#black-hole-star #early-universe #galaxy-formation

science10 months ago•3 min saved

Astronomers puzzled by mysterious red dots in the sky

Astronomers using the James Webb Space Telescope have discovered hundreds of mysterious small red dots in the early universe, now thought to be a new type of celestial object—hybrids between black holes and stars, called 'black-hole-stars'—which could reshape understanding of cosmic evolution. These objects, exemplified by the 'Cliff,' show unique spectral features indicating they are energetic black holes enshrouded in dense gas, and may be the precursors to galaxy centers.

via Nature|

#astronomy #black-hole-star #cosmology

science10 months ago•4 min saved

Potential First Detection of Black Hole-Embedded Giant Stars and New Cosmic Insights

Scientists have proposed a new model suggesting that some mysterious red objects in the early universe, called The Cliff, may be supermassive black holes wrapped in dense gas clouds, resembling 'black hole stars,' which could explain unusual spectral features and challenge current understanding of galaxy formation. Further research is needed to confirm this theory.

via ScienceAlert|

#balmer-break #black-hole-star #black-holes

science10 months ago•5 min saved

James Webb Telescope Uncovers New and Ancient Black Hole Phenomena

Astronomers using the James Webb Space Telescope have potentially discovered a new class of cosmic object called a 'black hole star,' which could explain mysterious 'little red dots' observed in the early universe. These objects may be black holes feeding rapidly and surrounded by glowing gas, offering insights into black hole growth and galaxy evolution. Further observations are needed to confirm their nature.

via Live Science|

#black-hole-star #cosmic-objects #early-universe