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Gas Kinematics in the Multiphase Circumgalactic Medium.

Authors :
Nielsen, Nikole M.
Kacprzak, Glenn G.
Churchill, Christopher W.
Murphy, Michael T.
Muzahid, Sowgat
Charlton, Jane C.
Evans, Jessica L.
Gil de Paz, Armando
Knapen, Johan H.
Lee, Janice C.
Source :
Proceedings of the International Astronomical Union; 2016 Supplement S321, Vol. 11, p345-347, 3p
Publication Year :
2016

Abstract

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. [ABSTRACT FROM PUBLISHER]

Details

Language :
English
ISSN :
17439213
Volume :
11
Database :
Complementary Index
Journal :
Proceedings of the International Astronomical Union
Publication Type :
Academic Journal
Accession number :
121995334
Full Text :
https://doi.org/10.1017/S1743921316011042