SIMBAD references

2012MNRAS.422.1700C - Mon. Not. R. Astron. Soc., 422, 1700-1708 (2012/May-2)

The kinetic temperature in a damped Lyman α absorption system in Q2206-199 - an example of the warm neutral medium.

CARSWELL R.F., BECKER G.D., JORGENSON R.A., MURPHY M.T. and WOLFE A.M.

Abstract (from CDS):

By comparing the widths of absorption lines from O I, Si II and Fe II in the redshift zabs= 2.076 single-component damped Lyα system in the spectrum of Q2206-199 we establish that these absorption lines arise in warm neutral medium (WNM) gas at ∼ 12 000 ± 3000 K. This is consistent with thermal equilibrium model estimates of ∼ 8000 K for the WNM in galaxies, but not with the presence of a significant cold component. It is also consistent with, but not required by, the absence of C II fine structure absorption in this system. Some possible implications concerning abundance estimates in narrow-line WNM absorbers are discussed.

Abstract Copyright: 2012 The Author Monthly Notices of the Royal Astronomical Society2012 RAS

Journal keyword(s): line: profiles - quasars: absorption lines - quasars: individual: Q2206-199

Simbad objects: 3

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