An international team of astrophysicists has discovered hundreds of mysterious structures in the center of the Milky Way galaxy.
These one-dimensional cosmic threads are hundreds of horizontal or radial filaments — slender, elongated bodies of luminous gas that potentially originated a few million years ago when outflow from Sagittarius A*, the Milky Way’s central supermassive black hole, interacted with surrounding materials, according to a study published Friday in The Astrophysical Journal Letters. The filaments are relatively short in length, each measuring 5 to 10 light-years.
“I was actually stunned when I saw these. We had to do a lot of work to establish that we weren’t fooling ourselves,” added Yusef-Zadeh, who’s also a member of the Center for Interdisciplinary Exploration and Research in Astrophysics. “We found that these filaments are not random but appear to be tied to the outflow of our black hole. … It is satisfying when one finds order in middle of a chaotic field of the nucleus of our galaxy.
“The new MeerKAT observations have been a game changer,” Yusef-Zadeh said. “It’s really a technical achievement from radio astronomers.” “The distribution and alignment of the filaments can help show how the material has moved and distorted in the past,” Hamden said. A black hole’s accretion disk is the thin, hot structure resulting from material from a nearby star being pulled into a circle around the black hole.
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