Science, Space and Technology News 2023
Hydrogen cyanide isotopes , shown in yellow, are found only around the black hole at the center. Cyanide radicals , shown in red, appear not only in the center and a large-scale ring-shaped gas structure, but also along the bipolar jets extending from the center towards the northeast and southwest . Carbon monoxide isotopes , shown in blue, avoid the central region. Credit: ALMA , NASA/ESA Hubble Space Telescope, T. Nakajima et al.
Thanks to ALMA’s high spatial resolution and a new machine-learning analysis technique, the team was able to map the distribution of 23 molecules. This is the first survey to objectively depict the distribution of all detected molecules through unbiased observations.
This is direct evidence that supermassive black holes affect not only the large-scale structure but also the chemical composition of their host galaxies. Reference: “Molecular Abundance of the Circumnuclear Region Surrounding an Active Galactic Nucleus in NGC 1068 Based on an Imaging Line Survey in the 3 mm Band with ALMA” by Taku Nakajima, Shuro Takano, Tomoka Tosaki, Akio Taniguchi, Nanase Harada, Toshiki Saito, Masatoshi Imanishi, Yuri Nishimura, Takuma Izumi, Yoichi Tamura, Kotaro Kohno and Eric Herbst, 14 September 2023,SciTechDaily: Home of the best science and technology news since 1998.
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