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Gas Kinematics in the Multiphase Circumgalactic Medium

Published online by Cambridge University Press:  21 March 2017

Nikole M. Nielsen ,
Glenn G. Kacprzak ,
Christopher W. Churchill ,
Michael T. Murphy ,
Sowgat Muzahid ,
Jane C. Charlton  and
Jessica L. Evans
Nikole M. Nielsen
Affiliation:
Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia email: nikolenielsen@swin.edu.au
Glenn G. Kacprzak
Affiliation:
Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia email: nikolenielsen@swin.edu.au
Christopher W. Churchill
Affiliation:
Department of Astronomy, New Mexico State University, Las Cruces, NM 88003, USA
Michael T. Murphy
Affiliation:
Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia email: nikolenielsen@swin.edu.au
Sowgat Muzahid
Affiliation:
Department of Astronomy & Astrophysics, The Pennsylvania State University, State College, PA 16801, USA
Jane C. Charlton
Affiliation:
Department of Astronomy & Astrophysics, The Pennsylvania State University, State College, PA 16801, USA
Jessica L. Evans
Affiliation:
Department of Astronomy, New Mexico State University, Las Cruces, NM 88003, USA
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Abstract

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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 < zgal < 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.

Keywords

galaxies: halosgalaxies: evolutionquasars: absorption lines
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S321: Formation and Evolution of Galaxy Outskirts , March 2016 , pp. 345 - 347
Copyright
Copyright © International Astronomical Union 2017 

References

Bordoloi, R., Lilly, S. J., Knobel, C., et al. 2011, ApJ, 743, 10 Google Scholar
Bouché, N., Hohensee, W., Vargas, R., et al. 2012, MNRAS, 426, 801 Google Scholar
Danovich, M., Dekel, A., Hahn, O., et al. 2015, MNRAS, 449, 2087 Google Scholar
Kacprzak, G. G., Churchill, C. W., Evans, J. L., et al. 2011, MNRAS, 416, 3118 Google Scholar
Kacprzak, G. G., Churchill, C. W., & Nielsen, N. M. 2012, ApJL, 760, L7 Google Scholar
Kacprzak, G. G., Muzahid, S., Churchill, C. W., et al. 2015, ApJ, 815, 22 Google Scholar
Lan, T. W., Ménard, B., & Zhu, G. 2014, ApJ, 795, 31 Google Scholar
Martin, C. L., Shapley, A. E., Coil, A. L., et al. 2012, ApJ, 760, 127 Google Scholar
Nielsen, N. M., Churchill, C. W., Kacprzak, G. G., et al. 2015, ApJ, 812, 83 Google Scholar
Nielsen, N. M., Churchill, C. W., Kacprzak, G. G., et al. 2016, ApJ, 818, 171 Google Scholar
Rubin, K. H. R., Prochaska, J. X., Koo, D. C., et al. 2012, ApJ, 747, L26 Google Scholar
Rubin, K. H. R., Prochaska, J. X., Koo, D. C., et al. 2014, ApJ, 794, 156 CrossRefGoogle Scholar
Tumlinson, J., Thom, C., Werk, J. K., et al. 2011, Science, 334, 948 CrossRefGoogle Scholar