J/MNRAS/354/L25 MgII absorbers in SDSS QSOs (Bouche+, 2004)
The clustering of luminous red galaxies around MgII absorbers.
Bouche N., Murphy M.T., Peroux C.
<Mon. Not. R. Astron. Soc., 354, L25-L29 (2004)>
=2004MNRAS.354L..25B 2004MNRAS.354L..25B
ADC_Keywords: QSOs ; Redshifts ; Equivalent widths
Keywords: galaxies: evolution - galaxies: haloes - quasars: absorption lines -
cosmology: observations
Abstract:
We study the cross-correlation between 212 Mg II quasar absorption
systems and ∼20000 luminous red galaxies (LRGs) selected from the
Sloan Digital Sky Survey Data Release 1 (Cat. J/AJ/126/2579) in the
redshift range 0.4≤z≤0.8. The Mg II systems were selected to have
λλ2796 and 2803 rest-frame equivalent widths ≥1.0Å
and identifications confirmed by the Fe II λ2600 or
Mg I λ2852 lines.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 82 212 Catalogue of 212 Mg II absorbers from the
SDSS DR1 with 0.4≤zabs≤0.8.
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See also:
J/AJ/126/2579 : SDSS quasar catalog. First data release (Schneider+, 2003)
J/MNRAS/354/L31 : Halpha systems in SDSS QSOs (Murphy+, 2004)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 18 A18 --- SDSS SDSS J2000 name (HHMMSS.ss+DDMMSS.s)
20- 25 F6.4 --- z SDSS emission redshift of the QSO given in
the FITS headers of the spectra.
27- 33 F7.5 --- zabs Measured absorption redshift of MgII 2796 line
35- 39 F5.3 0.1nm EWMgII MgII 2796 line rest-frame equivalent width (1)
41- 45 F5.3 0.1nm e_EWMgII 1-sigma statistical error in EWMgII
47- 51 F5.3 0.1nm EWMgIIb MgII 2803 line rest-frame equivalent width (1)
53- 57 F5.3 0.1nm e_EWMgIIb 1-sigma statistical error in EWMgIIb
59- 64 F6.3 0.1nm EWMgI MgI 2852 line rest-frame equivalent width (1)
66- 70 F5.3 0.1nm e_EWMgI 1-sigma statistical error in EWMgI
72- 76 F5.3 0.1nm EWFeII ? FeII 2600 line rest-frame equivalent width
(when detectable) (1)
78- 82 F5.3 0.1nm e_EWFeII ? 1-sigma statistical error in EWFeII
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Note (1): Rest-frame equivalent widths in a rest-frame 7Å window centred at
the absorption redshift.
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 29-Apr-2005