Black Holes – SpaceNews

Artist’s interpretation of an array of pulsars being affected by gravitational ripples produced by a supermassive black hole binary in a distant galaxy. CREDIT Aurore Simonnet for the NANOGrav Collaboration

After 15 years, pulsar timing yields evidence of cosmic background gravitational waves

by SpaceRef EditorAugust 11, 2023July 15, 2024

The universe is humming with gravitational radiation — a very low-frequency rumble that rhythmically stretches and compresses spacetime and the matter embedded in it.

Ripples in the spacetime around a merging binary black-hole system from a numerical relativity simulation. Image credit: Deborah Ferguson, Karan Jani, Deirdre Shoemaker, Pablo Laguna, Georgia Tech, MAYA Collaboration.

The Universal Sound Of Black Holes

by SpaceRef EditorJuly 31, 2023July 15, 2024

Artist's depiction of microquasar event captured by FAST Telescope. Courtesy Professor Wei Wang, Wuhan University

Astronomers Reveal New Features Of Galactic Black Holes

by SpaceRef EditorJuly 26, 2023July 15, 2024

A 31.5 solar-mass black hole with an 8.38 solar-mass black hole companion viewed in front of its (computer generated) stellar nursery prior to merging. CREDIT © Aaron M. Geller / Northwestern CIERA & NUIT-RCS; ESO / S. Brunier

Unveiling The Origins Of Merging Black Holes In Galaxies Like Our Own

by SpaceRef EditorJune 30, 2023July 15, 2024

An artist’s impression of a dusty region around a black hole. The most dust-enshrouded black holes can completely stop X-rays and visible light escaping, but the same dust can be heated by a growing black hole and glow brightly at infrared wavelengths. Credit: ESA/NASA, the AVO project and Paolo Padovani

Hidden Supermassive Black Holes Brought To Life By Galaxies On A Collision Course

by SpaceRef EditorMay 11, 2023July 15, 2024

Above: Image of the object observed with the Hubble Space Telescope. It shows the emission in the ultraviolet part of the spectrum. Middle: Ultraviolet image of a local galaxy without a bulge and observed edge-on (IC 5249). The similarities are obvious. Bottom: The same galaxy IC 5249 observed in the visible part of the spectrum. The spatial scales of the three images are identical. Credit: ESA/Hubble

The Mystery Of The Runaway Supermassive Black Hole Has Been Solved

by SpaceRef EditorMay 9, 2023July 15, 2024

MIT astronomers mapped the “disk winds” associated with the accretion disk around Hercules X-1, a system in which a neutron star is drawing material away from a sun-like star, represented as the teal sphere. The findings may offer clues to how supermassive black holes shape entire galaxies. Credit: Jose-Luis Olivares, MIT. Based on an image of Hercules X-1 by D. Klochkov, European Space Agency.

Scientists Map Gusty Winds In A Far-off Neutron Star System

by SpaceRef EditorApril 10, 2023July 15, 2024

An artist’s impression of a runaway supermassive black hole that was ejected from its host galaxy as a result of a tussle between it and two other black holes. As the black hole plows through intergalactic space, it compresses tenuous gas in front of it. This precipitates the birth of hot blue stars. This illustration is based on Hubble Space Telescope observations of a 200,000-light-year-long “contrail” of stars behind an escaping black hole. Credit: NASA, ESA, Leah Hustak (STScI)

Possible Runaway Black Hole Detected

by SpaceRef EditorApril 6, 2023July 15, 2024

This artist's concept shows the brilliant glare of two quasars residing in the cores of two galaxies that are in the chaotic process of merging. The gravitational tug-of-war between the two galaxies ignites a firestorm of star birth. Quasars are brilliant beacons of intense light from the centers of distant galaxies. They are powered by supermassive black holes voraciously feeding on infalling matter. This feeding frenzy unleashes a torrent of radiation that can outshine the collective light of billions of stars in the host galaxy. In a few tens of millions of years, the black holes and their galaxies will merge, and so will the quasar pair, forming an even more massive black hole. Credits: NASA, ESA, Joseph Olmsted (STScI)

Hubble Unexpectedly Finds A Double Quasar In The Distant Universe

by SpaceRef EditorApril 5, 2023July 15, 2024

LISA - Laser Interferometer Space Antenna CREDIT Simon Barke - University of Florida

The Search For The Missing Gravitational Signal

by SpaceRef EditorMarch 27, 2023July 15, 2024