There Are Hundreds of Mysterious Filaments at the Center of the Milky Way - by spacewriter
He and the team were stunned when they saw these radially stretched structures. “We had to do a lot of work to establish that we weren’t fooling ourselves,” he said. “And we found that these filaments are not random but appear to be tied to the outflow of our black hole. By studying them, we could learn more about the black hole’s spin and accretion disk orientation. It is satisfying when one finds order in a middle of a chaotic field of the nucleus of our galaxy.
Another idea is that molecular gas got stretched by the expansion of the material near the core. That somehow creates the radial filaments. Such action would also explain the lopsided appearance of the Sgr E complex. It lies to one side of the black hole at the intersection of the central molecular zone and a wide central dust lane. Finally, it’s also possible that the gravitational potential of our galaxy’s central bar is tugging the Sgr E cloud.
Some verticals could be the result of the interaction of a large-scale wind in the region and obstacles embedded within the flow. That combination creates filaments by wrapping the wind’s magnetic field around the obstacles. Clearly, there’s a lot of observation work and analysis to be done in order to really understand what’s happening to create both sets of filaments.Their origins likely explain the radically different orientations and characteristics of each filament population.
A video about the discovery of the radio bubble emanating from the center of the Milky Way Galaxy. Courtesy: Northwestern University.
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