The New Milky Way near the Sun (a discussion at the Harvard ITC)

Publication information:

2023. “The New Milky Way Near the Sun (a Discussion at the Harvard ITC)”

Abstract

Combinations of 3D dust maps of the ISM and 3D measurements of the motions of young stars have recently revealed two previously unseen phenomena: 1.) a gigantic undulation in the Local Arm of the Galaxy ("The Radcliffe Wave"); and 2.) a preponderance of SN-driven bubbles nearby, the largest of which (the "Local Bubble") is roughly centered on the current position of the Sun. Meanwhile, simulations of star-forming galaxies are becoming "nearly" good enough to search for simulated analogs to The Radcliffe Wave and the bubbly ISM around us. It's debatable whether any true analogs have been found, so let's debate and collaborate!

Links

Experts at the CfA & sites for follow up

  • Catherine Zucker (SAO Scientist) -- expert/lead on Radcliffe Wave, Local Bubble, ISM near the Sun, Clouds at bubble surfaces/intersections, Galactic Structures, Gaia, 3D dust mapping expert
  • Doug Finkbeiner (Harvard Professor) -- leader of the group that developed many of the 3D dust mapping techniques and maps used in understanding the 3D structure of the (dust in the) MIlky Way nearby
  • Theo O'Neill (G1, Harvard Astronomy) -- leads Local Bubble Magnetic Field work, interested in topological and other algorithms, also interested in disk-halo interactions++
  • Ralf Konietzka (G1, Harvard Astronomy) -- interested in dynamics++
  • Eric Koch (SAO Postdoc, SMA++)  -- expert on the ISM of nearby galaxies, member of PHANGS, PI of several ALMA studies
  • Sarah Jeffreson (ITC Postdoc) -- creating and studying simulations of Milky-Way-like galaxies, with feedback & clouds similar to what's observed, actively working with observers in this list on comparisons
  • Gus Beane (G5, Harvard Astronomy) -- creating and studying simulations of Milky Way's features, such as bars, and more, working with observers in this list on comparisons
  • Michael Foley (G6, Astronomy) -- modeling feedback (e.g. in Orion) and related shocks, and their role in star formation
  • Jesse Han (G4, Harvard Astronomy) -- studying stellar streams that may ultimately cause/interact with some of the larger structures being studied by observers above
  • Michael Rugel (SAO Postdoc) --expert on Milky Way's ISM, especially HI
  • Alyssa Goodman (Harvard Professor) -- very intererested in combining all of the above, under an umbrella of MilkyWay3D.org, and the techincal/astro-social challenges associated with that!

 


Full text

Combinations of 3D dust maps of the ISM and 3D measurements of the motions of young stars have recently revealed two previously unseen phenomena: 1.) a gigantic undulation in the Local Arm of the Galaxy ("The Radcliffe Wave"); and 2.) a preponderance of SN-driven bubbles nearby, the largest of which (the "Local Bubble") is roughly centered on the current position of the Sun. Meanwhile, simulations of star-forming galaxies are becoming "nearly" good enough to search for simulated analogs to The Radcliffe Wave and the bubbly ISM around us. It's debatable whether any true analogs have been found, so let's debate and collaborate!

Links

Experts at the CfA & sites for follow up

  • Catherine Zucker (SAO Scientist) -- expert/lead on Radcliffe Wave, Local Bubble, ISM near the Sun, Clouds at bubble surfaces/intersections, Galactic Structures, Gaia, 3D dust mapping expert
  • Doug Finkbeiner (Harvard Professor) -- leader of the group that developed many of the 3D dust mapping techniques and maps used in understanding the 3D structure of the (dust in the) MIlky Way nearby
  • Theo O'Neill (G1, Harvard Astronomy) -- leads Local Bubble Magnetic Field work, interested in topological and other algorithms, also interested in disk-halo interactions++
  • Ralf Konietzka (G1, Harvard Astronomy) -- interested in dynamics++
  • Eric Koch (SAO Postdoc, SMA++)  -- expert on the ISM of nearby galaxies, member of PHANGS, PI of several ALMA studies
  • Sarah Jeffreson (ITC Postdoc) -- creating and studying simulations of Milky-Way-like galaxies, with feedback & clouds similar to what's observed, actively working with observers in this list on comparisons
  • Gus Beane (G5, Harvard Astronomy) -- creating and studying simulations of Milky Way's features, such as bars, and more, working with observers in this list on comparisons
  • Michael Foley (G6, Astronomy) -- modeling feedback (e.g. in Orion) and related shocks, and their role in star formation
  • Jesse Han (G4, Harvard Astronomy) -- studying stellar streams that may ultimately cause/interact with some of the larger structures being studied by observers above
  • Michael Rugel (SAO Postdoc) --expert on Milky Way's ISM, especially HI
  • Alyssa Goodman (Harvard Professor) -- very intererested in combining all of the above, under an umbrella of MilkyWay3D.org, and the techincal/astro-social challenges associated with that!

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