UVES Spectrum of APM BR J0307-4945 (Dessauges-Zavadsky+, 2001)

Details UVES Spectrum of APM BR J0307-4945 (Dessauges-Zavadsky+, 2001) UVES Spectrum of APM BR J0307-4945 (Dessauges-Zavadsky+, 2001)

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001ycat..33700426d&link_type=abstract

VizieR On-line Data Catalog: J/A+A/370/426. Originally published in: 2001A&A...370..426D

Physics

Qsos, Spectra: Ultraviolet, Equivalent Widths, Redshifts

Scientific paper

We present the first high-resolution (6.2 to 7.7km/s FWHM) spectra of the APM BR J0307-4945 quasar at zem=4.73 obtained with UVES on the 8.2m VLT Kueyen telescope. We focus our analysis on a damped Lyman-α system at zabs=4.466, the most distant DLA system known to the present date, observed when the age of the universe was only 1.3Gyr. The following table lists the wavelengths and equivalent widths for all absorption-line features (except the telluric lines) redwards of the quasar Ly-α emission detected at 4σ in equivalent width. The transition names and approximate redshifts are specified for the features we successfully identified. About 80% of the absorption lines redwards of the quasar Ly-α emission have been identified, corresponding to 13 metal-line systems. (1 data file).

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