Four quasars

Four quasars

Images of four quasars showing corona and jets

This graphic shows images of four quasars from the team's sample, with X-rays from Chandra in blue and radio waves from the VLA in red. The X-rays are mainly from the black hole’s corona and the radio waves show the jets, which range in length between about 190,000 and 1.3 million light years. The full names of the quasars and their distances from Earth are SDSS J122539.55+245836.3 (3.1 billion light years), SDSS J151443.07+365050.4 (4.1 billion light years), SDSS J083906.52+575417.0 (9.5 billion light years) and SDSS J091528.77+441632.8 (9.4 billion light years).

IMAGE: X-ray: NASA/CXC/Penn State Univ./S. Zhu et al.; Radio: NRAO/VLA