Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...323..263h&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 323, Dec. 1, 1987, p. 263-270.
Astronomy and Astrophysics
Astrophysics
52
Absorption Spectra, Iron, Quasars, Spectral Line Width, Astronomical Spectroscopy, Carbon, Emission Spectra, Silicon
Scientific paper
The discovery and preliminary spectroscopy of the broad absorption line (BAL) QSO 0059-2735 (z/em/ = 1.595), which shows features never seen before in QSO spectra, are described. In addition to very broad high-ionization troughs of C IV and Si IV, it exhibits an extensive system of low ionization absorptions which include saturated lines of Mg II, Al II, and Al III, and broad Fe II features which have clear evidence for absorption from excited fine structure levels up to 0.12 eV. Even more remarkable are the very probable identifications of Fe II absorption by UV multiplets 62, 63, and 64 which require lower level excitations of 1.1 eV and Fe III absorption by the triplet UV 34 from a lower level at 3.7 eV. These are the first reports of absorption from such highly excited levels in any QSO. Detailed studies of this QSO should provide new insight on the Fe II ionization zones in QSOs and place severe constraints on models for BAL QSOs.
Hazard Cyril
McMahon Richard G.
Morton Donald C.
Webb John K.
No associations
LandOfFree
The remarkable broad absorption line QSO 0059-2735 with extensive Fe II absorption 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 The remarkable broad absorption line QSO 0059-2735 with extensive Fe II absorption, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The remarkable broad absorption line QSO 0059-2735 with extensive Fe II absorption will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-901069