Outflowing material in the CSS quasar 3C48: evidence of jet-cloud interaction?

Details Outflowing material in the CSS quasar 3C48: evidence of jet-cloud interaction? Outflowing material in the CSS quasar 3C48: evidence of jet-cloud interaction?

2005-05-06

arxiv.org/abs/astro-ph/0505125v1

Mon.Not.Roy.Astron.Soc. 361 (2005) 451-459

Astronomy and Astrophysics

Astrophysics

10 pages, 5 figures, accepted for publication in MNRAS

Scientific paper

10.1111/j.1365-2966.2005.09169.x

We report the detection of a zabs=0.3654 associated absorption-line system in the UV spectrum of the CSS quasar 3C48. The absorbing material is blue shifted with respect to the quasar emission-line redshift, zem=0.3700, suggesting an outflow velocity of ~1000 km/s. We detect absorption lines over a range of ionization states from Ly-beta, Ly-gamma, CIV, NIV, SVI to OVI and possibly OIV and NeVIII. The kinematical properties of the absorption-line system are similar to the blue-shifted emission line gas seen in [OIII]\lambda5007 (Chatzichristou, Vanderriest & Jaffe 1999), which is believed to have interacted with the radio jet. We study the properties of the absorbing material using CLOUDY and find that photoionization models with Solar abundance ratios (with overall metallicity in the range 0.1

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