J/other/PASA/19.455 Damped Lyman alpha absorption of QSOs (Curran+, 2002)
A catalogue of damped Lyman alpha absorption systems and radio flux densities of
the background quasars.
Curran S.J., Webb J.K., Murphy M.T., Bandiera R., Corbelli E., Flambaum V.V.
<Publications - Astron. Soc. Australia, 19, 455 (2002)>
=2002PASA...19..455C 2002PASA...19..455C
ADC_Keywords: QSOs ; Radio sources ; Radio lines
Keywords: catalogues - quasars: absorption lines - radio continuum: galaxies -
early universe
Abstract:
We present a catalogue of the 322 damped Lyman alpha absorbers taken
from the literature. All damped Lyman alpha absorbers are included,
with no selection on redshift or quasar magnitude. Of these, 123 are
candidates and await confirmation using high resolution spectroscopy.
For all 322 objects we catalogue the radio properties of the
background quasars, when known. Around 60 quasars have radio flux
densities above 0.1Jy and approximately half of these have optical
magnitudes brighter than V=18. This compilation should prove useful in
several areas of extragalactic/cosmological research.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 229 322 Damped Lyman alpha absorption systems and the
radio flux densities of the background quasars
table2.dat 80 25 The radio-loud DLAs in which H I absorption has
been searched
refnhi.dat 97 61 Damped Lyman alpha absorption references
refflux.dat 168 38 Radio references
notes.dat 83 148 Individual notes
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See also:
VII/224 : Quasars and Active Galactic Nuclei (10th Ed.) (Veron+ 2001)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 25 A25 --- Name QSO name (When more than one zabs,
the name is repeated)
26 A1 --- n_Name [*] note detailed in "notes.dat" file
28- 29 I2 h RAh ? Right ascension (J2000)
31- 32 I2 min RAm ? Right ascension (J2000)
34- 37 F4.1 s RAs ? Right ascension (J2000)
39 A1 --- DE- Declination sign (J2000)
40- 41 I2 deg DEd ? Declination (J2000)
43- 44 I2 arcmin DEm ? Declination (J2000)
46- 47 I2 arcsec DEs ? Declination (J2000)
48 A1 --- Pos [SN] When no position: S: See section 2;
N: Not published
49- 54 F6.4 --- zem ? Emission redshift of the quasar
56- 62 F7.5 --- zabs ? Redshift of the Lymanα absorber
63- 64 A2 --- l_logNHI [>≤ ] Limit flag on logNHI
65- 68 F4.1 [cm-2] logNHI ? Columm density of the Lymanα absorber
70- 85 A16 --- r_logNHI Reference for logNHI, in refnhi.dat
86 A1 --- n_logNHI [*W] Note on logNHI (1)
88- 91 F4.1 mag Vmag ? V magnitude
93 A1 --- l_S0.4GHz [~] Limit flag on S0.4GHz
94- 98 F5.2 Jy S0.4GHz ? Radio flux density at 0.44, 0.37
or 0.41GHz (3)
99 A1 --- n_S0.4GHz [X] Note on S0.4GHz (2)
100-102 A3 --- r_S0.4GHz Reference for S0.4GHz, in refflux.dat file
103 A1 --- --- [/]
104-108 F5.2 Jy S0.4GHzb ? Second radio flux density at 0.4GHz value
109 A1 --- r_S0.4GHzb Reference for S0.4GHzb, in refflux.dat file
111 A1 --- l_S1.4GHz [≲] Limit flag on 1.4GHz
112-118 F7.4 Jy S1.4GHz ? Radio flux density at 1.4GHz
119-123 A5 --- r_S1.4GHz Reference for S1.4GHz, in refflux.dat file
124 A1 --- --- [,]
125-129 F5.3 Jy S1.4GHzb ? Second radio flux density at 1.4GHz value
130 A1 --- r_S1.4GHzb [N] Reference for S1.4GHzb, in refflux.dat file
132 A1 --- l_S2.7GHz [≲ ] Limit flag on S2.7GHz
133-137 F5.3 Jy S2.7GHz ? Radio flux density at 2.7GHz
138 A1 --- n_S2.7GHz [X] Note on S2.7GHz (2)
139-143 A5 --- r_S2.7GHz Reference for S2.7GHz, in refflux.dat file
144-145 A2 --- l_S5.0GHz [≲ ] Limit flag on S5.0GHz
146-151 F6.4 Jy S5.0GHz ? Radio flux density at 5.0GHz
152 A1 --- n_S5.0GHz [X] Note on S5.0GHz (2)
153-159 A7 --- r_S5.0GHz Reference for S5.0GHz, in refflux.dat file
162 A1 --- --- [/]
163-165 F3.1 Jy S5.0GHzb ? Second radio flux density at 5.0GHz value
166-168 A3 --- r_S5.0GHzb Note on S5.0GHzb, in refflux.dat file
170-171 A2 --- l_S1 [≲ ] Limit flag on S1
172-177 F6.4 Jy S1 ? Radio flux density at "Freq1"
178 A1 --- --- [(]
179-183 F5.1 GHz Freq1 ? Value of the Freq1 radio line
184 A1 --- --- [)]
185-187 A3 --- r_S1 Notes on Freq1, in refflux.dat file
188 A1 --- --- [/]
189-190 A2 --- l_S2 [∼ ] Limit flag on S2
191-196 F6.4 Jy S2 ? Radio flux density at "Freq2"
197 A1 --- --- [(]
198-202 F5.1 GHz Freq2 ? Value of the Freq2 radio line
203 A1 --- --- [)]
204-206 A3 --- r_S2 Notes on S2, in refflux.dat file
207 A1 --- --- [/]
208-209 A2 --- l_S3 [∼ ] Limit flag on S3
210-213 F4.2 Jy S3 ? Radio flux density at "Freq3"
214 A1 --- --- [(]
215-217 I3 GHz Freq3 ? Value of the Freq3 radio line
218 A1 --- --- [)]
219 A1 --- r_S3 Notes on S3, in refflux.dat file
220 A1 --- --- [/]
221-223 F3.1 Jy S4 ? Radio flux density at "Freq4"
224 A1 --- --- [(]
225-227 I3 GHz Freq4 ? Value of the Freq4 radio line
228 A1 --- --- [)]
229 A1 --- r_S4 [x] Reference for S4, in refflux.dat file
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Note (1): Notes on logNH:
W: not given in White et al., 2000, Cat. J/ApJS/126/133
*: candidate DLA which has yet to be confirmed using higher
resolution spectroscopy
Note (2): Notes on flux density:
X: the quasar was not detected at the flux density limit of 0.25Jy
(Douglass et al., 1992A&A...262....8D 1992A&A...262....8D), or in appropriates
columns, if the object is not considered a 2.7 or 5.0GHz radio
source (Veron-Cetty and Veron, 2001, Cat. VII/224)
Note (3): The radio flux density S1.4GHz is either the 0.33GHz WENSS,
0.37GHz Texas or 0.41GHz MRC flux density, and when both flux
densities are available, the 365MHz value is quoted
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 25 A25 --- Name Quasar name
27 A1 --- l_tau Limit flag on tau
28- 32 F5.3 --- tau Optical depth of the H I line,
with 3σ limits
33 A1 --- n_tau [,-] Set of values, or range
34- 37 F4.2 --- tau2 ? Other value or upper limit of tau
39- 42 F4.1 [cm-2] logNHI HI column density
44- 47 F4.1 Jy S Approximate flux density at zabs
49- 52 F4.1 --- Sp+Index ? Spectral index
54- 80 A27 --- Notes Notes (1)
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Note (1): Additional notes:
For PKS 0201+113 the values are from de Bruyn et al. (1996A&A...305..450D 1996A&A...305..450D)
and Briggs et al. (1997AJ....113..467B 1997AJ....113..467B), respectively.
PKS 0336-017 and MG3 J234456+3433 -- these are results from
N. Kanekar & J.N. Chengalur (in preparation); Carilli et al.
(1996AJ....111.1830C 1996AJ....111.1830C) obtained tau<0.02 and 0.1, respectively.
GPS designates a GHz peaked source with the approximate turnover
frequency given in parenthesis. In the case of the `U-shaped' SEDs,
[HB89] 0215+015 is known to exhibit radio outbursts (e.g. Ledden &
Odell, 1985ApJ...298..630L 1985ApJ...298..630L ) and so the flux densities quoted will be
variable. For PKS 0454+039 and [HB89] 1331+170, these could be due to
an anomalous flux density measurement and both are considered flat
spectrum sources (e.g. Wampler et al., 1984ApJ...276..403W 1984ApJ...276..403W; Mattox et
al., 1997ApJ...481...95M 1997ApJ...481...95M).
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Byte-by-byte Description of file: refnhi.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Ref Reference number
4- 22 A19 --- BibCode BibCode
24- 52 A29 --- Aut Author's name
55- 97 A43 --- Com Comments
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Byte-by-byte Description of file: refflux.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- Ref Code for the references
5- 23 A19 --- BibCode BibCode
25- 55 A31 --- Aut Author's name
57-176 A120 --- Com Comments
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Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
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1- 25 A25 --- Name Quasar name
26- 93 A68 --- Note Text of the note
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History:
From electronic version of the journal
* 14-Feb-2003: Corected in table2 the names
J074110.6+311200 and [HB89] 0439-4319 to keep them compatible
with table1.
(End) James Marcout, Patricia Bauer [CDS] 22-Oct-2002