All articles tagged with #cygnus x 1
Astronomers directly measured the instantaneous power of jets from the Cygnus X-1 black hole binary—nearly 10,000 suns—while jets travel at about 0.5c and bend under the donor star’s wind, based on 18 years of high-resolution radio observations; the real-time jet-power measurement improves understanding of black-hole feedback and its influence on galaxy-scale environments.
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.
Astronomers using the Square Kilometre Array measured jets blasting from the Cygnus X-1 black hole as it siphons material from a blue supergiant companion. The jets carry about 10% of the energy of the infalling matter and emit as much energy as 10,000 suns, with speeds around half the speed of light. The finding provides a robust anchor for jet power in black holes and helps calibrate how these jets influence galaxies across the cosmos.
A new analysis of Cygnus X-1 using a global network of telescopes quantifies its jets, showing they travel at about half the speed of light and carry roughly 10% of the energy from infalling matter, emitting power equal to 10,000 Suns.
High-resolution imaging of Cygnus X-1 shows the star’s strong stellar wind bends the black hole’s jets, enabling the first direct estimate of jet power—about 10,000 times the Sun’s luminosity. This reveals how a star’s wind shapes jet behavior, helping balance the black hole’s energy budget and refine galaxy-scale simulations.
Astronomers mapped Cygnus X-1’s energetic jets by tracking their wobble caused by winds from its stellar companion, revealing jets carrying energy equivalent to about 10,000 suns and shooting outward at roughly half the speed of light; the measurement helps anchor black hole jet physics and improves understanding of how these outflows influence galaxy evolution.
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.
After over two centuries since the concept was proposed, black holes have been confirmed to exist, with the first candidate object identified in 1971. This week in astronomy, Dave Eicher discusses the different categories of black holes and explains why they are believed to be widespread, even if they are currently difficult to detect.