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Radio Recombination Lines in the Milky Way Marina Berezina (Max Planck IfR )

Image Credits: www.otakupop.com, www.cv.nrao.edu. Radio Recombination Lines in the Milky Way Marina Berezina (Max Planck IfR ) Kevin Hardegree-Ullman (Univ. of Toledo) Yanina Metodieva (Univ. of Sofia) Amanda Kepley (NRAO, GBT). Based on HII Region Discovery Survey (HDRS)

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Radio Recombination Lines in the Milky Way Marina Berezina (Max Planck IfR )

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  1. Image Credits: www.otakupop.com, www.cv.nrao.edu Radio Recombination Lines in the Milky Way Marina Berezina (Max Planck IfR) Kevin Hardegree-Ullman (Univ. of Toledo) YaninaMetodieva (Univ. of Sofia) Amanda Kepley (NRAO, GBT) Based on HII Region Discovery Survey (HDRS) Bania, T.M. + (2010)

  2. Radio Recombination Lines (RRLs) • Used to measure distances to star forming regions in the Milky Way • Combine with other observations to study dust and gas in young massive clusters

  3. Radio Recombination Lines (RRLs) • Electrons fall to lower levels within an atom and emit a photon - +

  4. Data Collection/Reduction • Observed 7 RRLs in 10 HII regions within the galactic plane • Combined scans, baselined, fit Gaussian, obtained VLSR

  5. VLSR VLSR (km s-1) Galactic Longitude (°) Dame, Hartmann, & Thaddeus (2001)

  6. Future Analysis • Compare to infrared emission • Learn more about star formation in the Milky Way

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