Gas Kinematics in the Multiphase Circumgalactic Medium

Nikole M. Nielsen, Glenn G. Kacprzak, Christopher W. Churchill, Michael T. Murphy, Sowgat Muzahid, Jane C. Charlton, Jessica L. Evans

Research output: Contribution to journalArticlepeer-review


We use high-resolution Keck, VLT, or Hubble Space Telescope spectra of background quasars to examine the kinematic properties of the multiphase, metal-enriched circumgalactic medium in the outskirts of galaxies at 0.08 < z gal < 1.0, focusing on the low-ionization Mgii and high-ionization Ovi doublets. The absorption kinematics of low-ionization gas in the circumgalactic medium depend strongly on the star formation activity and the location about the host galaxy, where the largest velocity dispersions are associated with blue, face-on galaxies probed along the minor axis. Conversely, high-ionization gas kinematics are independent of galaxy star formation activity and orientation.

Original languageEnglish (US)
Pages (from-to)345-347
Number of pages3
JournalProceedings of the International Astronomical Union
Issue numberS321
StatePublished - Mar 1 2016

All Science Journal Classification (ASJC) codes

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science


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