2010AJ....139..279W

Query : 2010AJ....139..279W

2010AJ....139..279W - Astron. J., 139, 279-295 (2010/January-0)

Outlying H II regions in H I-selected galaxies.

WERK J.K., PUTMAN M.E., MEURER G.R., RYAN-WEBER E.V., KEHRIG C., THILKER D.A., BLAND-HAWTHORN J., DRINKWATER M.J., KENNICUTT R.C., WONG O.I., FREEMAN K.C., OEY M.S., DOPITA M.A., DOYLE M.T., FERGUSON H.C., HANISH D.J., HECKMAN T.M., KILBORN V.A., KIM J.H., KNEZEK P.M., KORIBALSKI B., MEYER M., SMITH R.C. and ZWAAN M.A.

Abstract (from CDS):

We present results from the first systematic search for outlying H II regions, as part of a sample of 96 emission-line point sources (referred to as ELdots-emission-line dots) derived from the NOAO Survey for Ionization in Neutral Gas Galaxies (SINGG). Our automated ELdot finder searches SINGG narrowband and continuum images for high equivalent width point sources outside the optical radius of the target galaxy (>2xr25 in the R band). Follow-up long-slit spectroscopy and deep Galaxy Evolution Explorer (GALEX) images (exposure time >1000 s) distinguish outlying H II regions from background galaxies whose strong emission lines ([O III], Hβ, or [O II]) have been redshifted into the SINGG bandpass. We find that these deep GALEX images can serve as a substitute for spectroscopic follow-up because outlying H II regions separate cleanly from background galaxies in color-color space. We identify seven SINGG systems with outlying massive star formation that span a large range in Hα luminosities corresponding to a few O stars in the most nearby cases, and unresolved dwarf satellite companion galaxies in the most distant cases. Six of these seven systems feature galaxies with nearby companions or interacting galaxies. Furthermore, our results indicate that some outlying H II regions are linked to the extended-UV disks discovered by GALEX, representing emission from the most massive O stars among a more abundant population of lower-mass (or older) star clusters. The overall frequency of outlying H II regions in this sample of gas-rich galaxies is 8%-11% when we correct for background emission-line galaxy contamination (∼75% of ELdots).

Abstract Copyright: ∼

Journal keyword(s): galaxies: halos - galaxies: star clusters - H II regions - intergalactic medium - stars: formation

VizieR on-line data: <Available at CDS (J/AJ/139/279): table1.dat table2.dat>

Nomenclature: Tables 1-2: [WPM2010] JHHMM+DDa:ENN N=96.

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

Simbad objects: 58

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Number of rows : 58
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 ESO 409-15 EmG 00 05 31.86 -28 05 53.4   15.12   14.56 15.9 ~ 54 0
2 MCG-04-02-003 AG? 00 19 11.47 -22 40 05.8   15.90   14.8 15.2 ~ 31 0
3 NGC 79 GiG 00 21 02.8562340432 +22 33 59.592582828   14.9       ~ 29 0
4 ESO 473-24 AG? 00 31 22.51 -22 45 57.5   16.11   15.87 17.7 ~ 58 1
5 NGC 178 GiG 00 39 08.3430707328 -14 10 21.981237024   13.6   13.4 13.1 ~ 67 0
6 ESO 52-10 AG? 01 56 50.50 -68 59 42.9   15.84   15.29 16.1 ~ 14 0
7 HCG 16 CGG 02 09 40.82 -10 11 02.0           ~ 169 0
8 SINGG HIPASS J0209-10 G 02 09 43 -10 11.3           ~ 6 0
9 HIPASS J0221-05 G 02 21 35.0 -05 31 12           ~ 5 0
10 LEDA 9103 EmG 02 23 50.72 -04 37 01.6   15.5   14.9 15.4 ~ 17 0
11 HIPASS J0224-24 G 02 24 58.3 -24 47 10           ~ 5 0
12 ESO 154-23 AG? 02 56 50.38 -54 34 17.1   12.63   12.18 12.5 ~ 113 0
13 ESO 481-17 AG? 03 17 04.4819793264 -22 51 59.796394380   13.18   11.81 12.6 ~ 41 0
14 NGC 1311 Sy2 03 20 06.946 -52 11 07.76 13.89 13.35 12.93 12.75 13.1 ~ 124 0
15 NGC 1314 GiC 03 22 41.173 -04 11 11.55   13.4   13.4 13.3 ~ 27 0
16 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 1826 0
17 LEDA 135684 LSB 03 41 44.46 -02 00 08.8   15.3       ~ 15 0
18 ESO 358-60 GiC 03 45 12.14 -35 34 15.3   15.86   15.46 16.6 ~ 73 0
19 ESO 302-10 AG? 03 48 30.13 -39 25 30.1   15.49   15.0 15.3 ~ 15 0
20 ESO 302-14 GiG 03 51 40.90 -38 27 08.0   14.84   14.54 14.8 ~ 53 0
21 NGC 1487 GiP 03 55 46.5 -42 22 01   12.28 11.68 11.74 11.02 ~ 111 0
22 HIPASS J0359-45 G 03 59 13.8 -45 52 09           ~ 5 0
23 NGC 1510 GiP 04 03 32.640 -43 24 00.58 14.23 13.63 13.24 13.09   ~ 188 1
24 NGC 1512 GiP 04 03 54.281 -43 20 55.86 11.30 11.43 10.54 10.37   ~ 396 1
25 SINGG HIPASS J0403-43 G 04 03 58 -43 20.9           ~ 8 0
26 NGC 1533 EmG 04 09 51.8356041744 -56 07 06.410207352   11.77 10.92 10.27 11.0 ~ 198 0
27 NGC 1637 Sy2 04 41 28.1926876152 -02 51 28.667815488   11.4   11.0 11.3 ~ 418 0
28 ESO 252-1 IG 04 56 58.3 -42 48 03   15.28   15.04   ~ 48 0
29 NGC 1744 LSB 04 59 57.7383643080 -26 01 19.840639764 12.43 11.90 11.41 11.20 11.7 ~ 148 0
30 HIPASS J0503-63 G 05 03 14.4 -63 48 30           ~ 5 0
31 HIPASS J0504-16 G 05 04 32.0 -16 36 01           ~ 5 0
32 NGC 1800 EmG 05 06 25.737 -31 57 15.21 13.51 13.19 12.70 12.48 12.9 ~ 178 1
33 NGC 1808 Sy2 05 07 42.343 -37 30 46.98 11.05 10.80 9.94 9.36 10.2 ~ 721 3
34 MCG-03-14-001 AG? 05 07 46.90 -16 17 37.0   13.3   14.88 13.6 ~ 43 0
35 ESO 422-41 EmG 05 10 46.9969231512 -31 35 49.316938620   13.04 12.58 12.26 12.8 ~ 54 0
36 ESO 362-9 AG? 05 11 59.33 -32 58 21.4 13.66 13.05 12.67 12.55 12.7 ~ 59 0
37 MCG-02-25-013 GiP 09 43 17.889 -09 56 44.33   13.7   13.18 13.9 ~ 43 0
38 NGC 3200 AG? 10 18 36.5393422320 -17 58 57.031507560   12.92   11.78 12.1 ~ 124 0
39 ESO 569-14 EmG 10 51 24.093 -19 53 26.62   13.83   12.69 13.2 ~ 61 0
40 HIPASS J1054-18 G 10 54 20.3 -18 12 27           ~ 5 0
41 IC 2627 EmG 11 09 53.3868003696 -23 43 33.192730524   12.67   11.36 11.9 ~ 109 0
42 HIPASS J1131-02 G 11 31 28.6 -02 17 40           ~ 5 0
43 M 83 SBG 13 37 00.91920 -29 51 56.7400 8.85 8.11 7.52 7.21   ~ 2572 2
44 ESO 444-84 GiC 13 37 19.99 -28 02 42.0 16.04 15.34 15.05 15.05 14.9 ~ 121 1
45 NGC 5264 GiG 13 41 36.683 -29 54 47.25 13.86 12.96 12.39 12.14 15.83 ~ 152 1
46 IC 4951 EmG 20 09 31.77 -61 51 01.7 14.74 14.23 13.84 13.68 14.0 ~ 66 0
47 IC 5052 G 20 52 01.633 -69 11 35.93 12.83 12.20 11.66 11.40   ~ 154 0
48 IC 5078 EmG 21 02 31.2399855096 -16 49 05.333334780   12.8   12.60 12.7 ~ 65 0
49 HIPASS J2149-60 G 21 49 13.9 -60 39 44           ~ 5 0
50 HIPASS J2202-20 G 22 02 36.1 -20 49 20           ~ 5 0
51 NGC 7184 AG? 22 02 39.8286792432 -20 48 45.720207216   11.98 11.20 10.62   ~ 140 0
52 IC 5176 Sy2 22 14 55.928 -66 50 57.88   13.54   11.97 12.4 ~ 102 0
53 APMUKS (BJ) B221353.45-430010.3 AG? 22 16 54.6354 -42 45 17.942           ~ 8 0
54 IC 5201 AG? 22 20 57.437 -46 02 09.06   11.53   10.71 11.7 ~ 118 0
55 MCG-01-57-015 AG? 22 34 54.47 -04 42 04.9   14.5   14.6 14.7 ~ 36 0
56 NGC 7424 EmG 22 57 18.3924511080 -41 04 14.124670032   10.88 10.38 10.02 10.9 ~ 219 0
57 NGC 7713 EmG 23 36 15.154 -37 56 22.18   11.63   11.09 11.6 ~ 141 0
58 ESO 149-3 AG? 23 52 02.15 -52 34 33.9 15.48 15.10 14.89 14.84 14.9 ~ 79 0

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