2011AJ....142..122C

Query : 2011AJ....142..122C

2011AJ....142..122C - Astron. J., 142, 122 (2011/October-0)

Ca II and Na I quasar absorption-line systems in an emission-selected sample of SDSS DR7 Galaxy/Quasar projections. I. Sample selection.

CHERINKA B. and SCHULTE-LADBECK R.E.

Abstract (from CDS):

The aim of this project is to identify low-redshift host galaxies of quasar absorption-line systems by selecting galaxies that are seen in projection onto quasar sightlines. To this end, we use the Seventh Data Release of the Sloan Digital Sky Survey to construct a parent sample of 97,489 galaxy/quasar projections at impact parameters of up to 100 kpc to the foreground galaxy. We then search the quasar spectra for absorption-line systems of Ca II and Na I within ±500 km/s of the galaxy's velocity. This yields 92 Ca II and 16 Na I absorption systems. We find that most of the Ca II and Na I systems are sightlines through the Galactic disk, through high-velocity cloud complexes in our halo, or Virgo Cluster sightlines. Placing constraints on the absorption line rest equivalent width significance ( ≥ 3.0σ), the local standard of rest velocity along the sightline ( ≥ 345 km/s), and the ratio of the impact parameter to the galaxy optical radius ( ≤ 5.0), we identify four absorption-line systems that are associated with low-redshift galaxies at high confidence, consisting of two Ca II systems (one of which also shows Na I) and two Na I systems. These four systems arise in blue, ∼L*rgalaxies. Tables of the 108 absorption systems are provided to facilitate future follow-up.

Abstract Copyright: ∼

Journal keyword(s): catalogs - galaxies: general - quasars: absorption lines (Ca II, Na I)

VizieR on-line data: <Available at CDS (J/AJ/142/122): table1.dat table5.dat table6.dat>

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 69

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Number of rows : 69
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 LEDA 1124039 G 00 00 05.54207 -01 12 58.7297           ~ 5 0
2 SDSS J000006.53+003055.2 QSO 00 00 06.5328876216 +00 30 55.216523484   20.61 20.37     ~ 19 0
3 SDSS J000006.67+003016.7 G 00 00 06.6725164776 +00 30 16.730741844           ~ 4 0
4 SDSS J000027.97-002653.4 G 00 00 27.9790410192 -00 26 53.471306184           ~ 3 0
5 SDSS J000030.37-002732.4 QSO 00 00 30.3827321640 -00 27 32.445198720   20.39 20.17     ~ 17 0
6 SDSS J000031.98-103322.0 G 00 00 31.9897473552 -10 33 22.033626876           ~ 2 0
7 [VV2006] J000035.7-103305 QSO 00 00 35.7548295216 -10 33 05.343703776   17.7 19.35 18.4   ~ 22 0
8 PB 9263 H2G 02 49 10.8123343010 -07 49 24.848137982   17       ~ 7 0
9 [VV2006] J024945.0-075627 QSO 02 49 45.0084984480 -07 56 26.932978536   19.19 18.86     ~ 21 0
10 [VV2006] J024950.7-075949 QSO 02 49 50.6753265744 -07 59 49.879568472   19.37 19.17     ~ 21 0
11 [VV2006] J024957.3-075616 QSO 02 49 57.3139460328 -07 56 16.981078776   20.69 20.48     ~ 18 0
12 SHOC 142 EmG 02 53 46.7118920880 -07 23 43.986710688           ~ 9 0
13 [VV2006] J025407.7-074023 QSO 02 54 07.6859417688 -07 40 23.010510936   20.09 19.91     ~ 18 0
14 PB 9340 QSO 02 54 14.6171060472 -07 34 35.466623688   18.14 17.84     ~ 25 0
15 [VV2006] J025420.6-073745 QSO 02 54 20.5897082616 -07 37 45.491163024   19.15 18.89     ~ 27 0
16 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
17 LEDA 1599237 AG? 09 13 38.992 +19 37 07.49           ~ 20 0
18 2MASS J09151103+2012482 QSO 09 15 11.0341732608 +20 12 48.266634240   17.65 17.19     ~ 14 0
19 2MASS J10041795+2824441 QSO 10 04 17.9672835216 +28 24 44.120199240   17.74 17.57     ~ 19 0
20 2MASS J10092745+2732159 QSO 10 09 27.4414027200 +27 32 15.844674120   16.5 17.47 17.2   ~ 20 0
21 Ton 490 Bla 10 13 53.42877250 +24 49 16.4406795   16.59 16.57 15.85   ~ 200 1
22 Ton 34 QSO 10 19 56.5979680488 +27 44 01.738221864   16.06 15.69     ~ 114 0
23 NGC 3245A LSB 10 27 01.146 +28 38 21.84   15.4       ~ 93 0
24 SDSS J102703.86+283721.9 G 10 27 03.861 +28 37 21.93           ~ 1 0
25 [VV2006] J104102.4+023242 QSO 10 41 02.4300633936 +02 32 42.842225364   19.58 19.41     ~ 23 0
26 2MASS J10411197+2828051 Sy1 10 41 11.9696651184 +28 28 05.153626560   16.92 16.74     ~ 34 0
27 2MASS J10422193+2820126 QSO 10 42 21.9736767480 +28 20 13.371322416   18.47 18.24     ~ 18 0
28 2MASS J10422483+2310024 QSO 10 42 24.8496903336 +23 10 01.812739188   18.40 18.12     ~ 14 0
29 QSO B1048+3217 QSO 10 51 24.2901307968 +32 00 44.532980640   17.99 17.96     ~ 26 0
30 [VV2006] J110156.4+073524 QSO 11 01 56.3511755112 +07 35 25.053584280   18.83 18.61     ~ 25 0
31 2MASS J11055786+0457282 QSO 11 05 57.8716734456 +04 57 28.429721424   16.97 16.73     ~ 26 0
32 LEDA 33881 Sy1 11 10 12.0744179928 +01 13 27.882373620   16.99 16.64 15.994   ~ 42 0
33 QSO J1115+0237 QSO 11 15 07.6563022152 +02 37 57.537905952   17.50 17.37     ~ 39 1
34 QSO B1115+080A QSO 11 18 16.951 +07 45 58.23   16.61 16.44     ~ 703 2
35 SDSS J111849.76-002109.9 G 11 18 49.7662300152 -00 21 09.965567808   18.247   17.144   ~ 11 0
36 QSO J1118-0021 QSO 11 18 50.1381202416 -00 21 00.761116068   19.64 19.29     ~ 28 0
37 SDSS J113420.50-033525.4 G 11 34 20.5030647120 -03 35 25.360389996           ~ 1 0
38 SDSS J114313.05+193646.9 GiC 11 43 13.054 +19 36 46.97           ~ 15 0
39 LEDA 1597260 G 11 43 18.07842 +19 34 01.3872           ~ 9 0
40 SDSS J114323.72+193448.0 QSO 11 43 23.7181402848 +19 34 48.048930516   18.90 18.36     ~ 22 0
41 Z 97-85 GiC 11 43 36.9854061168 +19 36 16.722911196   15.7       ~ 22 0
42 ACO 1367 ClG 11 44 44.6 +19 41 59           ~ 1127 1
43 LEDA 2171777 AG? 11 46 37.596 +40 50 36.65           ~ 9 0
44 Mrk 1456 EmG 11 47 20.2038002664 +52 29 18.633338988   16       ~ 27 0
45 SDSS J115115.25+485331.0 G 11 51 15.256 +48 53 31.07           ~ 1 0
46 Z 158-48 AG? 12 13 23.2223740680 +29 55 19.212036384   15.7       ~ 32 0
47 NGC 4190 LSB 12 13 44.765 +36 38 02.49 13.88 13.40 13.25 12.86   ~ 224 0
48 Z 69-120 GiG 12 16 33.691 +13 01 52.48   15.2       ~ 78 0
49 2MASS J12203723+2837519 QSO 12 20 37.2272211936 +28 37 52.006465452   18.58 18.28     ~ 18 0
50 LEDA 4322326 G 12 20 37.63654 +28 38 03.3147           ~ 7 0
51 NGC 4452 GiG 12 28 43.2980346552 +11 45 18.201826692 13.27 12.87 11.98     ~ 215 1
52 LEDA 41068 GiC 12 28 44.917 +12 48 35.13   19 17.23   16.24 ~ 33 0
53 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
54 Z 42-184 LSB 12 37 45.226 +07 06 18.34   15.4       ~ 88 0
55 NGC 4605 GiG 12 39 59.2837284936 +61 36 32.822365392   10.94   10.35   ~ 347 2
56 SDSS J124006.10+613609.5 G 12 40 06.107 +61 36 09.57           ~ 1 0
57 LEDA 1486528 G 14 06 13.2288065328 +15 30 35.512910100           ~ 4 0
58 SDSS J141745.62+162509.3 G 14 17 45.6276815280 +16 25 09.349512132           ~ 1 0
59 2MASS J14174603+1625123 QSO 14 17 46.0377192672 +16 25 12.258404580   18.23 18.07     ~ 20 0
60 2MASX J14200966+1326266 Sy2 14 20 09.6504653328 +13 26 26.702553048           ~ 4 0
61 SDSS J150359.48+240532.8 QSO 15 03 59.4843157800 +24 05 32.761582296   20.94 20.61     ~ 13 0
62 LEDA 1699255 G 15 04 00.9470332608 +24 04 37.173823716           ~ 9 0
63 2MASS J15040320+2405599 AGN 15 04 03.201 +24 05 59.96           ~ 7 0
64 LEDA 1317342 G 15 11 45.63993 +07 15 10.5985           ~ 4 0
65 SBSG 1543+593 LSB 15 44 20.30 +59 12 24.2   17.5 16.9     ~ 55 2
66 SDSS J155752.51+342142.8 G 15 57 52.5125366928 +34 21 42.748534836           ~ 3 0
67 LEDA 3415141 G 21 17 01.26959 -00 26 33.8094           ~ 7 0
68 PB 5667 QSO 23 59 58.6647176568 -01 12 25.386911532   18.91 18.72     ~ 21 0
69 NAME Local Group GrG ~ ~           ~ 9325 0

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