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9 maja 2025
An artist's illustration of what the surroundings 
of the supermassive black hole at the center of BL Lac
is shown. A white jet protrudes horizontally toward
the bottom of the image, emanating from a orange accretion
disk surrounding a black hole. 
Więcej szczegółowych informacji w opisie poniżej.

IXPE Explores a Black Hole Jet
Źródło ilustracji: NASA, Pablo Garcia

Opis: How do black holes create X-rays? Answering this long-standing question was significantly advanced recently with data taken by NASA’s IXPE satellite. X-rays cannot exit a black hole, but they can be created in the energetic environment nearby, in particular by a jet of particles moving outward. By observing X-ray light arriving from near the supermassive black hole at the center of galaxy BL Lac, called a blazar, it was discovered that these X-rays lacked significant polarization, which is expected when created more by energetic electrons than protons. In the featured artistic illustration, a powerful jet is depicted emanating from an orange-colored accretion disk circling the black hole. Understanding highly energetic processes across the universe helps humanity to understand similar processes that occur on or near our Earth.

Put it All Together: Astronomy Puzzle of the Day
Jutro: Yogi on Mars: 3D


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Autorzy i wydawcy: Robert Nemiroff (MTU) i Jerry Bonnell (UMCP)
NASA Official: Amber Straughn obowiązują określone prawa.
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Serwis prowadzony przez: ASD w NASA / GSFC,
NASA Science Activation
oraz Michigan Tech. U.