Tag

Black Hole Jets

All articles tagged with #black hole jets

science1 month ago•5 min saved

Direct Measurement of Black Hole Jet Power Rewrites Galaxy Formation Models

Astronomers used 18 years of global radio observations to directly measure the power of jets from Cygnus X-1, a black hole–supergiant binary, finding the jets carry energy equivalent to about 10,000 suns and travel at ~150,000 km/s, with winds deflecting them by ~2 degrees. This instantaneous jet-power reading links accretion to ejection, confirms a long-standing 10% energy-into-jets assumption in galaxy-formation simulations, and provides a scalable anchor for calibrating jet power across black-hole masses as next-generation telescopes come online.

via Indian Defence Review|

#black-hole-jets #cygnus-x-1 #galaxy-formation-feedback

science1 month ago•14 min saved

First measurements quantify the power and speed of black hole jets

Astronomers have, for the first time, measured the power and speed of relativistic jets from a black hole in the Cygnus X-1 system, using multi-wavelength observations to reveal how the companion star’s stellar wind shapes and pushes the jets.

via AP News|

#astronomy #black-hole-jets #cygnus-x-1

space1 month ago•3 min saved

Reignited black hole jets spark a million-light-year cosmic plume

Astronomers observed a reborn supermassive black hole in galaxy J1007+3540, whose renewed jets after nearly 100 million years clash with the surrounding hot cluster gas, bending and compressing into structures spanning about a million light-years. LOFAR and uGMRT radio data reveal a bright inner jet inside older, faded lobes and a long faint tail shaped by the dense environment, marking a rare episodic AGN. This insight helps explain how black holes cycle on and off and how their jets sculpt their host galaxies, with plans for higher-resolution follow-up observations.

via ScienceDaily|

#black-hole-jets #episodic-agn #galaxy-cluster

science5 months ago•4 min saved

NASA IXPE Unveils the Mystery of Black Hole Jets

NASA's IXPE mission's longest observation of the Perseus Cluster has identified the origin of X-rays in a supermassive black hole's jet, confirming that the X-rays originate from inverse Compton scattering within the jet, primarily supporting the synchrotron self-Compton model, through polarization measurements combined with data from other observatories.

via NASA (.gov)|

#black-hole-jets #ixpe #nasa

science1 year ago•3 min saved

Chandra Telescope Unveils High-Speed Knots in Centaurus A Black Hole Jet

Astronomers using NASA's Chandra X-ray Observatory have discovered bright 'knots' in the jet of a nearby black hole in the Centaurus A galaxy, which appear to move faster in X-rays than in radio wavelengths. This finding, published in The Astrophysical Journal, highlights the complexity of black hole jets and the need for further study. The research comes amid concerns over potential budget cuts to the observatory, which is crucial for X-ray astronomy.

via Space.com|

#astrophysics #black-hole-jets #centaurus-a-galaxy