Relativistic outflow in CXOCDFS J033260.0-274748

J. X. Wang, T. G. Wang, P. Tozzi, R. Giacconi, G. Hasinger, L. Kewley, V. Mainieri, M. Nonino, C. Norman, A. Streblyanska, G. Szokoly, T. Yaqoob, A. Zirm

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In this Letter we report the detection of a strong and extremely blueshifted X-ray absorption feature in the 1 Ms Chandra spectrum of CXOCDFS J033260.0-274748, a quasar at z = 2.579 with L2-10 keV ∼ 4 × 1044 ergs s-1. The broad absorption feature at ∼6.3 keV in the observed frame can be fitted either as an absorption edge at 20.9 keV or as a broad absorption line at 22.2 keV rest frame. The absorber has to be extremely ionized with an ionization parameter ξ ∼ 104, and a high column density, NH > 5 × 1023 cm -2. We reject the possibility of a statistical or instrumental artifact. The most likely interpretation is an extremely blueshifted broad absorption line or absorption edge, due to H or He-like iron in a relativistic jetlike outflow with bulk velocity of ∼0.7c-0.8c. Similar relativistic outflows have been reported in the X-ray spectra of several other AGNs in the past few years.

Original languageEnglish
Pages (from-to)L33-L36
JournalAstrophysical Journal
Issue number1 II
Publication statusPublished - Sep 20 2005


ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Wang, J. X., Wang, T. G., Tozzi, P., Giacconi, R., Hasinger, G., Kewley, L., Mainieri, V., Nonino, M., Norman, C., Streblyanska, A., Szokoly, G., Yaqoob, T., & Zirm, A. (2005). Relativistic outflow in CXOCDFS J033260.0-274748. Astrophysical Journal, 631(1 II), L33-L36.