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Mg II/CIV Kinematics vs. Stellar Kinematics in Galaxies

Churchill, Chris and Steidel, Chuck (2003) Mg II/CIV Kinematics vs. Stellar Kinematics in Galaxies. In: The IGM/Galaxy Connection: The Distribution of Baryons at z=0. Astrophysics and Space Science Library. No.281. Springer , Dordrecht, pp. 149-154. ISBN 978-94-010-3978-9.

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Comparisons of the kinematics of MgII absorbing gas and the stellar rotation curves in 0.5 ≤ z ≤ 1.0 spiral galaxies suggests that, at least in some cases, the extended gaseous envelopes are dynamically coupled to the stellar matter. A strong correlation exists between the overall kinematic spread of MgII absorbing gas and CIV absorption strength, and therefore kinematics of the higher-ionization gas. Taken together, the data may suggest a “halo/disk connection” between z ∼ 1 galaxies and their extended gaseous envelopes. Though the galaxies in our sample are few in number, there are no clear examples that suggest the gas is accreting/infalling isotropically about the galaxies from the intergalactic medium.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Steidel, Chuck0000-0002-4834-7260
Additional Information:© 2003 Springer Science+Business Media Dordrecht. Supported in part by NASA NAG5 6399, NSF AST 95-96229 and AST 00-70773, HST GO 08672.01-A, GO 05984.01-94A, and GO 06577.01-95A, and the David & Lucile Packard Foundation. We also thank K. Adelberger, J. Charlton, M. Dickinson, B. Jannuzi, J. Maserio, M. Pettini, J. Rigby, A. Shapley, and S. Vogt.
Funding AgencyGrant Number
NSFAST 95-96229
NSFAST 00-70773
NASA Hubble FellowshipGO 08672.01-A
NASA Hubble FellowshipGO 05984.01-94A
NASA Hubble FellowshipGO 06577.01-95A
David and Lucile Packard FoundationUNSPECIFIED
Series Name:Astrophysics and Space Science Library
Issue or Number:281
Record Number:CaltechAUTHORS:20191009-135114252
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:99198
Deposited By: Tony Diaz
Deposited On:09 Oct 2019 21:16
Last Modified:16 Nov 2021 17:44

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