A supermassive black hole, blazar BL Lacertae, has finally revealed how these cosmic features generate X-rays, thanks to new international research using NASA’s Imaging X-ray Polarimetry Explorer (IXPE).
Blazar BL Lacertae’s jets point directly toward Earth, pouring forth from the supermassive black hole surrounded by a brilliant halo, which presents an optimal condition for the scientific study of its X-rays. The new work proves that electron and photon interaction drives these X-ray emissions, after detailed polarity research.
Blazar BL Lacertae
A bright accretion disk encircles the supermassive black hole, with the swirling mass of material spiraling toward the celestial object’s event horizon. While accretion pulls matter inward, it also ejects streams of electrons outward at nearly the speed of light, surrounded by helical magnetic fields.
To observe this complex action and understand how blazar BL Lacertae generates X-rays, researchers combined IXPE observations with data from other radio and optical telescopes.
Astronomers initially mistook BL Lacertae for a variable star after its discovery in 1929. Decades of observations eventually led scientists to identify it as one of the first known blazars—a galaxy core firing a jet of ionized matter at almost light speed, a term coined in 1978.
Testing X-Ray Origin Hypotheses
Before this…more
Source thedebrief.org
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