2003ApJ...591..827P


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.25CET06:53:29

2003ApJ...591..827P - Astrophys. J., 591, 827-842 (2003/July-2)

Spatial analysis of the Hα emission in the local star-forming UCM galaxies.

PEREZ-GONZALEZ P.G., ZAMORANO J., GALLEGO J., ARAGON-SALAMANCA A. and GIL DE PAZ A.

Abstract (from CDS):

We present a photometric study of the Hα emission in the Universidad Complutense de Madrid (UCM) Survey galaxies. This work complements our previously published spectroscopic data. We study the location of the star-forming knots, their intensity and concentration, and the relationship of these properties with those of the host galaxy. We also estimate that the amount of Hα emission that arises from the diffuse ionized gas is about 15%-30% of the total Hα flux for a typical UCM galaxy. This percentage seems to be independent of the Hubble type. Conversely, we find that an ``average'' UCM galaxy harbors a star formation event with 30% of its Hα luminosity arising from a nuclear component. The implications of these results for higher redshift studies are discussed, including the effects of galaxy size and the depth of the observations. A correlation between the star formation rate and the Balmer decrement is observed, but such correlation breaks down for large values of the extinction. Finally, we recalculate the Hα luminosity function and star formation rate density of the local universe using the new imaging data. Our results point out that, on average, spectroscopic observations detected about one-third of the total emission-line flux of a typical UCM galaxy. The new values obtained for the Hα luminosity density and the star formation rate density of the local universe are 1039.3±0.2 ergs/s/Mpc3 and ρSFR=0.016+0.007–0.004M/yr/Mpc3 (H0=50 km/s/Mpc, ΩM=1.0, Λ=0). The corresponding values for the ``concordance cosmology'' (H0=70 km/s/Mpc, ΩM=0.3, Λ=0.7) are 1039.5±0.2 ergs/s/Mpc3 and ρSFR=0.029+0.008–0.005M/yr/Mpc3.

Abstract Copyright:

Journal keyword(s): Galaxies: Dwarf - Galaxies: Evolution - Galaxies: Starburst - Stars: Formation

Simbad objects: 80

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Number of rows : 80

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 2MASX J00154983+1958476 EmG 00 15 49.836 +19 58 47.66   17.11       ~ 12 0
2 2MASX J00171505+1846179 G 00 17 15.056 +18 46 17.95   16.09       ~ 17 0
3 UGC 164 G 00 17 23.7231931894 +18 05 03.149798648   15.2       ~ 37 0
4 Mrk 1141 EmG 00 18 07.6037828745 +22 28 43.590088280   16.0       ~ 18 0
5 MCG+03-02-002 EmG 00 19 57.340 +19 58 51.80   15.5       ~ 19 0
6 MCG+04-03-011 GiG 00 50 12.987 +24 29 51.19   15.0       ~ 25 0
7 MCG+04-03-012 EmG 00 50 25.660 +24 31 14.24   15.0       ~ 29 0
8 LEDA 3524 Sy1 00 58 55.46 +01 00 17.7   17       ~ 23 0
9 LEDA 3530 GiC 00 59 04.107 +01 00 04.21   17.2 16.09 16.6 16.6 ~ 35 0
10 2MASX J01441803+2235052 EmG 01 44 18.038 +22 35 05.28   16.26       ~ 12 0
11 2MASX J01504264+2323576 G 01 50 42.650 +23 23 57.63   16.72       ~ 17 0
12 2MASX J01510430+2138401 EmG 01 51 04.304 +21 38 40.17   16.88       ~ 14 0
13 2MASX J02014912+2341217 EmG 02 01 49.129 +23 41 21.71   15.5       ~ 19 0
14 NGC 4702 EmG 12 49 01.490 +27 10 44.06   15.0       ~ 32 0
15 2MASX J12502019+2644596 EmG 12 50 20.218 +26 44 59.45   16       ~ 24 0
16 NGC 4735 SBG 12 51 01.7240065238 +28 55 40.705744459   15.10 14.42     ~ 62 0
17 Mrk 53 IG 12 56 06.097 +27 40 41.17   15.5 13.65 14.92   ~ 89 0
18 Mrk 55 LIN 12 57 25.2481584623 +27 24 16.547418329   16.0       ~ 61 1
19 MCG+05-31-035 EmG 12 57 57.748 +28 03 41.50   16       ~ 67 0
20 2MASX J12581654+3109325 EmG 12 58 16.5454096581 +31 09 32.328864135     15.5     ~ 19 0
21 LEDA 1787484 EmG 12 58 39.948 +26 45 34.29   16.62       ~ 25 0
22 2MASX J12584321+2854356 GiC 12 58 43.213 +28 54 35.66   15.97 15.23     ~ 25 0
23 2MASX J12591668+2706218 AGN 12 59 16.6703873479 +27 06 21.980165475   17.09       ~ 25 0
24 Mrk 60 AGN 13 00 09.1419128408 +27 51 59.342884533 16.418 16.39 15.82 15.358 14.835 ~ 97 0
25 7W 1258+27W06 EmG 13 00 33.732 +27 38 15.64   15.4       ~ 99 0
26 LEDA 2793632 AGN 13 02 25.647 +28 51 29.03   17.19 16.75     ~ 38 0
27 2MASX J13042266+2848382 EmG 13 04 22.6820606743 +28 48 38.604489206   15.3 15.09     ~ 63 0
28 [VV98] J130435.7+283738 QSO 13 04 35.752 +28 37 39.86   15.90 15.8     ~ 31 0
29 LEDA 1848558 SBG 13 05 45.350 +28 52 16.83   16.64 16.36     ~ 30 0
30 MCG+05-31-132 EmG 13 06 36.410 +27 52 22.61   15.5       ~ 51 0
31 UCM 1304+2830 EmG 13 06 37.053 +28 14 05.09   18.57       ~ 11 0
32 2MASX J13071324+2802487 EmG 13 07 13.242 +28 02 48.79   15.5       ~ 37 0
33 MCG+05-31-143 SBG 13 09 16.084 +29 22 03.54   15.1 14.88 15.60   ~ 60 0
34 2MASX J13092180+3055217 EmG 13 09 21.749 +30 55 22.18   16.25       ~ 13 0
35 IC 4210 SBG 13 10 47.6439966935 +29 42 35.582958071   15.3 14.67     ~ 62 0
36 UGC 8259 SBG 13 11 01.6882966643 +29 34 42.043129599   14.60 14.20 14.72   ~ 93 1
37 2MASX J13164423+2812001 EmG 13 16 44.2472313541 +28 12 00.346038502   16       ~ 17 0
38 LEDA 140180 SBG 13 26 25.063 +29 10 31.76   17.74 17.18     ~ 32 0
39 Mrk 454 IG 13 26 51.251 +26 35 28.35   15.1       ~ 50 0
40 UCM 1331+2900 EmG 13 33 45.38 +28 45 12.6   18.86 18.26     ~ 24 0
41 2MASX J14332079+2841359 EmG 14 33 20.7866310114 +28 41 36.325001272   15.5       ~ 21 0
42 LEDA 2793644 EmG 14 33 49.9 +29 34 07   17.80 17.42     ~ 20 0
43 IC 4461 H2G 14 35 01.871 +26 32 37.87   15.3       ~ 29 0
44 2MASX J14430090+2508481 EmG 14 43 00.927 +25 08 48.46   16.80       ~ 11 0
45 2MASX J14430259+2509081 AGN 14 43 02.593 +25 09 08.14   16.64       ~ 11 0
46 2MASS J14460178+2535458 EmG 14 46 01.803 +25 35 46.04   15.4       ~ 28 0
47 2MASX J14464562+2910342 G 14 46 45.628 +29 10 34.62   16.42 16.08     ~ 18 0
48 Z 106-23 EmG 15 15 48.331 +20 01 20.81   15.6       ~ 19 0
49 Mrk 860A AGN 15 39 26.0530399865 +24 56 36.843827232   16.10       ~ 18 0
50 Mrk 860 AGN 15 39 27.488 +24 56 51.56   15.57 14.80     ~ 52 0
51 UCM 1612+1308 EmG 16 15 17.023 +13 01 33.10   18.05       ~ 21 0
52 UCM 1646+2725 EmG 16 48 35.325 +27 20 23.40   18.16       ~ 12 0
53 2MASX J16490523+2945310 SBG 16 49 05.2708691017 +29 45 31.652751605   15.45 14.80     ~ 29 0
54 2MASX J16493698+2724135 G 16 49 36.9479740690 +27 24 14.049702787   15.6       ~ 18 0
55 2MASX J16493728+2722175 EmG 16 49 37.241 +27 22 17.59   17.12       ~ 10 0
56 Mrk 1108 SBG 16 50 47.879 +28 50 44.28   15.44 14.99     ~ 27 0
57 2MASX J16585240+2739422 GiC 16 58 52.4115875321 +27 39 41.997898925   16.84       ~ 13 0
58 2MASX J16592691+2856453 SBG 16 59 26.916 +28 56 45.39   17.13 16.55     ~ 14 0
59 IC 5242 EmG 22 41 15.2072245132 +23 24 24.642423539   14.7       ~ 35 0
60 2MASX J22515791+2205030 EmG 22 51 57.9332395974 +22 05 02.663297322   15.96       ~ 15 0
61 Mrk 309 AGN 22 52 34.7114349528 +24 43 49.427431876   15.69 15.22     ~ 96 0
62 2MASX J22534409+2408135 EmG 22 53 44.092 +24 08 13.51   16.36       ~ 12 0
63 2MASX J22553130+2236003 EmG 22 55 31.3403309384 +22 36 00.634836874   16       ~ 15 0
64 UGC 12265 S GiP 22 57 35.127 +19 46 57.66   16.08       ~ 16 0
65 UGC 12265 PaG 22 57 35.6 +19 47 12           ~ 28 0
66 UGC 12265 N GiP 22 57 35.976 +19 47 25.66   14.5       ~ 39 0
67 LEDA 1602373 EmG 22 57 43.97 +19 42 06.9   16.74       ~ 13 0
68 2MFGC 17267 EmG 22 57 54.456 +17 10 06.31   16.62       ~ 14 0
69 2MASX J23010689+1936315 EmG 23 01 06.900 +19 36 31.59   15.2       ~ 23 0
70 LEDA 1520649 EmG 23 06 55.260 +16 56 15.17   17.56       ~ 15 0
71 2MASX J23085085+2004104 EmG 23 08 50.852 +20 04 10.41   15.70       ~ 34 0
72 IC 5298 Sy2 23 16 00.6756811155 +25 33 24.081139422   15.0       ~ 176 0
73 UCM 2315+1923 EmG 23 18 00.42 +19 39 56.4   17.22       ~ 10 0
74 Mrk 319 EmG 23 18 38.350 +25 13 58.57   14.0       ~ 70 0
75 2MASX J23184040+2515545 EmG 23 18 40.4168990419 +25 15 54.550641570   15.7       ~ 20 0
76 NGC 7673 EmG 23 27 41.060 +23 35 20.18 12.84 13.17 12.76     ~ 264 1
77 2MASX J23284841+2452263 G 23 28 48.413 +24 52 26.33   16.04       ~ 21 0
78 UCM 2327+2515S EmG 23 30 09.9 +25 31 56   15.77       ~ 8 0
79 UCM 2327+2515N EmG 23 30 09.9 +25 32 00   15.83       ~ 8 0
80 2MASX J23314833+2444060 EmG 23 31 48.3407556166 +24 44 06.383525042   15.7       ~ 18 0

    Equat.    Gal    SGal    Ecl

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2020.11.25-06:53:29

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