Sentences with phrase «as blazars»
J1415 +1320 is what's known as a blazar, a bright galaxy with a gluttonous supermassive black hole at its center (SN: 3/4/17, p. 13).
https://www.sciencenews.org/ Not exact matches
They could have emerged from gamma - ray bursts, mysterious and short - lived cataclysms that briefly rank as the brightest objects in the universe; shock waves from exploding stars; or so - called blazars, jets of energy powered by supermassive black holes.
PKS 1830 - 211 thus appears in the sky as two images; and these images are brighter than the blazar would be without this lens effect.
The light of the blazar behind it passes through this space well and takes a detour — as if it were passing through a lens.
Observations of blazars by NASA's Fermi Gamma Ray Telescope spacecraft for the first time detected that gamma rays from distant blazars are indeed attenuated more than gamma rays from nearby blazars, a result announced on November 30, 2012, in a paper published in Science, as theoretically predicted.
«We can think of one blazar class as a gas - guzzling car and the other as an energy - efficient electric vehicle,» study lead researcher Marco Ajello, an astrophysicist at Clemson University in South Carolina, said in a statement.
This hybrid blazar idea implies that the luminosity of BL Lacs should decrease as their core black holes continue to lose energy and spin.
(Blazars are generally defined as quasars that are viewed jet - on).
A Boston University team led by Svetlana Jorstad earlier had identified the three blazars as having potentially very high jet speeds based on VLBA observations in the mid-1990s.