Abstract
We use NIRSPEC, a near-IR spectrometer on Keck II, to obtain moderate-resolution (R = 1540) spectroscopy that shows conclusively that the C IV emission line in the z = 5.74 quasar SDSSp J104433.04-012502.2 is accompanied by broad, blueshifted C IV absorption. The line has a "balnicity index" of 900 km s-1 and a rest-frame equivalent width of 13.1 ± 1.3 Å relative to the continuum. This confirms its membership in the class of objects called "broad absorption line" (BAL) quasi-stellar objects (QSOs). SDSSp J1044-0125 was previously suggested to be a BAL QSO based on its UV-to-X-ray flux ratio, which is larger than most non-BAL QSOs. The C IV emission is of normal strength, implying a metallicity similar to that found in other, lower redshift, QSOs.
| Original language | English (US) |
|---|---|
| Journal | Astrophysical Journal |
| Volume | 561 |
| Issue number | 1 PART 2 |
| DOIs | |
| State | Published - Nov 1 2001 |
| Externally published | Yes |
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Keywords
- Galaxies: active
- Galaxies: nuclei
- Quasars: absorption lines
- Quasars: general
- Quasars: individual (SDSS 1044-0125)
ASJC Scopus subject areas
- Space and Planetary Science
Cite this
J-band spectroscopy of the z = 5.74 broad absorption line quasar SDSSP J104433.04-012502.2. / Goodrich, R. W.; Campbell, R.; Chaffee, F. H.; Hill, G. M.; Sprayberry, D.; Brandt, W. N.; Schneider, D. P.; Kaspi, S.; Fan, Xiaohui; Gunn, J. E.; Strauss, M. A.
In: Astrophysical Journal, Vol. 561, No. 1 PART 2, 01.11.2001.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - J-band spectroscopy of the z = 5.74 broad absorption line quasar SDSSP J104433.04-012502.2
AU - Goodrich, R. W.
AU - Campbell, R.
AU - Chaffee, F. H.
AU - Hill, G. M.
AU - Sprayberry, D.
AU - Brandt, W. N.
AU - Schneider, D. P.
AU - Kaspi, S.
AU - Fan, Xiaohui
AU - Gunn, J. E.
AU - Strauss, M. A.
PY - 2001/11/1
Y1 - 2001/11/1
N2 - We use NIRSPEC, a near-IR spectrometer on Keck II, to obtain moderate-resolution (R = 1540) spectroscopy that shows conclusively that the C IV emission line in the z = 5.74 quasar SDSSp J104433.04-012502.2 is accompanied by broad, blueshifted C IV absorption. The line has a "balnicity index" of 900 km s-1 and a rest-frame equivalent width of 13.1 ± 1.3 Å relative to the continuum. This confirms its membership in the class of objects called "broad absorption line" (BAL) quasi-stellar objects (QSOs). SDSSp J1044-0125 was previously suggested to be a BAL QSO based on its UV-to-X-ray flux ratio, which is larger than most non-BAL QSOs. The C IV emission is of normal strength, implying a metallicity similar to that found in other, lower redshift, QSOs.
AB - We use NIRSPEC, a near-IR spectrometer on Keck II, to obtain moderate-resolution (R = 1540) spectroscopy that shows conclusively that the C IV emission line in the z = 5.74 quasar SDSSp J104433.04-012502.2 is accompanied by broad, blueshifted C IV absorption. The line has a "balnicity index" of 900 km s-1 and a rest-frame equivalent width of 13.1 ± 1.3 Å relative to the continuum. This confirms its membership in the class of objects called "broad absorption line" (BAL) quasi-stellar objects (QSOs). SDSSp J1044-0125 was previously suggested to be a BAL QSO based on its UV-to-X-ray flux ratio, which is larger than most non-BAL QSOs. The C IV emission is of normal strength, implying a metallicity similar to that found in other, lower redshift, QSOs.
KW - Galaxies: active
KW - Galaxies: nuclei
KW - Quasars: absorption lines
KW - Quasars: general
KW - Quasars: individual (SDSS 1044-0125)
UR - http://www.scopus.com/inward/record.url?scp=0035510937&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035510937&partnerID=8YFLogxK
U2 - 10.1086/324466
DO - 10.1086/324466
M3 - Article
VL - 561
JO - Astrophysical Journal
JF - Astrophysical Journal
SN - 0004-637X
IS - 1 PART 2
ER -