On the measurement of kinetic temperature in high redshift galactic halos

Details On the measurement of kinetic temperature in high redshift galactic halos On the measurement of kinetic temperature in high redshift galactic halos

1999-05-11

arxiv.org/abs/astro-ph/9905123v1

Astronomy and Astrophysics

Astrophysics

4 pages, 1 eps figure, moriond.sty file, to appear in XIXth Moriond Astrophysics Meeting "Building galaxies: from the primordi

Scientific paper

We consider the deconvolution of the thermal and the turbulent profiles for a pair of ions with different atomic weights under the condition that the lines are formed in an absorbing medium with fluctuating density and velocity fields. Our method is based on the entropy-regularized minimization (ERM) procedure. From synthetic spectra we found that the CII and SiII lines can be used to estimate the mean (density weighted) kinetic temperature with a sufficiently high accuracy (of about 10%) in a rather wide range of the ionization parameter, -6 < log U < -2. This is a generalization of a previous result (Levshakov, Takahara and Agafonova 1999) where we did not account for density fluctuations.

Affiliated with

Also associated with

No associations

Rating

On the measurement of kinetic temperature in high redshift galactic halos does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with On the measurement of kinetic temperature in high redshift galactic halos, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the measurement of kinetic temperature in high redshift galactic halos will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-566496