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Agn

All articles tagged with #agn

science16 days ago

Scientists Discover First Active Triple Black Hole System in Galaxy Merger

Astronomers have confirmed the first known system where three galaxies, each hosting active supermassive black holes, are merging, providing new insights into galaxy and black hole evolution through high-resolution radio imaging. The system, located 1.2 billion light-years away, shows all three black holes actively feeding and launching jets, a rare and significant discovery that advances our understanding of cosmic growth processes.

via Indian Defence Review|
#agn#black-holes#cosmic-collision
science1 year ago

Scientists Unveil the Shape of Black Hole Coronas for the First Time

Astronomers have successfully determined the structure of black hole coronae, revealing them to be disk-like rather than spherical, using NASA's Imaging X-ray Polarimetry Explorer. This breakthrough provides new insights into black hole dynamics, particularly how they emit energy and interact with their surroundings, challenging existing models and enhancing our understanding of active galactic nuclei (AGNs). The study focused on obscured black holes, allowing researchers to isolate and analyze the corona's high-energy X-ray emissions, which are crucial for understanding black hole behavior and their influence on galaxy formation.

via The Daily Galaxy --Great Discoveries Channel|
#agn#astronomy#blackholes
astronomy1 year ago

"Galactic Chaos: Black Hole's Massive Tantrum Unbalances Entire Galaxy"

Astronomers have observed a supermassive black hole in the galaxy Markarian 817 throwing a tantrum by emitting ultrafast winds, effectively cutting off its parent galaxy's gas supply needed for star formation. This behavior, detected by the European Space Agency's XMM-Newton space telescope, challenges previous assumptions about the conditions under which such winds are generated. The discovery suggests that even lightly feeding supermassive black holes can expel powerful winds capable of reshaping their host galaxies, and that such winds may be more common than previously thought. This finding could provide insights into the formation of galaxies and the role of black holes in their evolution.

via Space.com|
#agn#astronomy#galaxy
astronomy2 years ago

"Spanish Astronomer Unveils Active Galaxy Breakthrough"

Spanish astronomer Elio Quiroga Rodriguez has discovered a peculiar object in the Sombrero Galaxy, identified as a galaxy hosting an active galactic nucleus (AGN). By analyzing Hubble Space Telescope images, Rodriguez found that the object, previously classified as a globular cluster candidate, may be a barred spiral galaxy with an AGN at its center. The newfound galaxy, cataloged as PSO J190.0326-11.6132, has a radial velocity suggesting it could be a satellite of the Sombrero Galaxy. Further observations are needed to determine the type of AGN present in the galaxy.

via Phys.org|
#active-galaxy#agn#astronomy
astronomy2 years ago

Unusual galaxy system found with long, collimated gas and star tail

Astronomers have discovered an unusual galaxy system consisting of a pair of galaxies and a long, highly collimated tail of gas and stars. The tail is associated with a binary galaxy system and is the longest optical galactic tail detected so far. The tail is sufficiently gas-rich to support star formation along its length, even though it originates from an S0/a galaxy, which is expected to be gas-poor. The researchers propose that the tail resulted from a three-body interaction between the galaxies.

via Phys.org|
#agn#astronomy#galactic-tails
astronomy2 years ago

Hubble Telescope Discovers Enigmatic Space Objects

The Hubble telescope captured an image of Z 229-15, a celestial object that can be classified as a quasar, an active galactic nuclear, and a Seyfert galaxy due to an overlap in definitions. Z 229-15 is a galaxy with an AGN at its center, and the quasar involved in it is much dimmer than usual, making the stars within the galaxy visible. The image showcases the spiral appearance of the galaxy and the powerful instruments aboard the Hubble telescope.

via BGR|
#agn#astronomy#hubble