Italian astronomers inspect galaxy Markarian 509 with ALMA

Italian astronomers inspect galaxy Markarian 509 with ALMA

Italian astronomers inspect galaxy Markarian 509 with ALMA Using the Atacama Large Millimeter/submillimeter Array (ALMA), Italian astronomers have investigated an active galaxy known as Markarian 509. Results of the study, presented in a paper published July 14 on arXiv.org, deliver important insights into the distribution and kinematics of the galaxy's cold molecular gas. At a distance of some 466 million light years, Markarian 509 (or Mrk 509 for short) is a Seyfert 1.5 galaxy hosting an active galactic nucleus (AGN). Observations show that Mrk 509 is a medium size galaxy resembling a bulge with an ionized gas disk and a starburst ring where star formation is currently ongoing at a rate of about five solar masses per year. Mrk 509 is a complex system experiencing an ongoing minor merger and showing evidence of multiphase gas winds—from warm ionized gas wind to highly ionized ultra fast outflows (UFOs). In order to find more evidence of molecular winds, a team of astronomers led by Maria Vitttoria Zanchettin of the University of Trieste in Italy, has analyzed the data from ALMA as part …
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