2006A&A...448..489K

Query : 2006A&A...448..489K

2006A&A...448..489K - Astronomy and Astrophysics, volume 448, 489-498 (2006/3-3)

Massive star formation in the central regions of spiral galaxies.

KNAPEN J.H., MAZZUCA L.M., BOEKER T., SHLOSMAN I., COLINA L., COMBES F. and AXON D.J.

Abstract (from CDS):

Context. The morphology of massive star formation in the central regions of galaxies is an important tracer of the dynamical processes that govern the evolution of disk, bulge, and nuclear activity.
Aims. We present optical imaging of the central regions of a sample of 73 spiral galaxies in the Hα line and in optical broad bands, and derive information on the morphology of massive star formation.
Methods. We obtained images with the William Herschel Telescope, mostly at a spatial resolution of below one second of arc. For most galaxies, no Hα imaging is available in the literature. We outline the observing and data reduction procedures, list basic properties, and present the I-band and continuum-subtracted Hα images. We classify the morphology of the nuclear and circumnuclear Hα emission and explore trends with host galaxy parameters.
Results. We confirm that late-type galaxies have a patchy circumnuclear appearance in Hα, and that nuclear rings occur primarily in spiral types Sa-Sbc. We identify a number of previously unknown nuclear rings, and confirm that nuclear rings are predominantly hosted by barred galaxies.
Conclusions. Other than in stimulating nuclear rings, bars do not influence the relative strength of the nuclear Hα peak, nor the circumnuclear Hα morphology. Even considering that our selection criteria led to an over-abundance of galaxies with close massive companions, we do not find any significant influence of the presence or absence of a close companion on the relative strength of the nuclear Hα peak, nor on the Hα morphology around the nucleus.

Abstract Copyright: ∼

Journal keyword(s): galaxies: spiral - galaxies: structure - galaxies: nuclei

Simbad objects: 74

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Number of rows : 74
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 NGC 128 GiG 00 29 15.0429950112 +02 51 50.564329164   13.2       ~ 205 0
2 NGC 157 Sy2 00 34 46.7879913696 -08 23 47.273597952   11.0 19.00 10.03 10.7 ~ 351 0
3 NGC 210 GiP 00 40 34.9927609368 -13 52 21.999585108   11.8   11.00 11.4 ~ 174 0
4 NGC 255 GiG 00 47 47.309 -11 28 07.31   12.5   11.82 12.6 ~ 98 0
5 NGC 278 H2G 00 52 04.3452013728 +47 33 01.675026036   10.5       ~ 234 1
6 NGC 470 GiP 01 19 44.8526263032 +03 24 36.027176544 12.63 12.53 11.78     ~ 275 1
7 NGC 473 LSB 01 19 55.0596989640 +16 32 41.283861540   13.41 12.63     ~ 86 0
8 NGC 488 GiG 01 21 46.7967133224 +05 15 24.623017524   15.0       ~ 290 0
9 NGC 613 AGN 01 34 18.235 -29 25 06.56   10.77 12.71 9.50 10.6 ~ 409 3
10 M 74 G 01 36 41.7451236624 +15 47 01.107512304 10.52 10.00 9.46 9.16   ~ 1734 1
11 NGC 772 GiP 01 59 19.5557148984 +19 00 27.475677216 11.35 11.09 10.31 10.23 9.38 ~ 325 1
12 NGC 788 Sy2 02 01 06.4628889816 -06 48 57.149808084   13.71 12.76 11.79   ~ 265 0
13 NGC 864 H2G 02 15 27.641 +06 00 09.43   12.00       ~ 220 1
14 NGC 922 EmG 02 25 04.400 -24 47 17.46   12.54 12.21 11.84   ~ 148 0
15 NGC 925 H2G 02 27 16.913 +33 34 43.97   10.69 10.12 9.55   ~ 782 1
16 NGC 1042 EmG 02 40 23.9724818544 -08 26 00.736256616 11.47 11.56 11.02 11.7 11.4 ~ 260 1
17 M 77 Sy2 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4600 2
18 NGC 1073 EmG 02 43 40.598 +01 22 33.13   11.3   11.3 11.8 ~ 326 0
19 NGC 1079 Sy2 02 43 44.3354434608 -29 00 11.748886668   12.17 11.37 10.86 11.5 ~ 138 0
20 NGC 1084 GiG 02 45 59.926 -07 34 43.10 11.22 11.59 10.73 10.55 11.1 ~ 368 2
21 NGC 1087 H2G 02 46 25.1550134904 -00 29 55.457857644   11.5   11.4 11.5 ~ 329 0
22 NGC 1140 EmG 02 54 33.5271666624 -10 01 43.142143908 12.41 12.84 12.49 13.6 13.5 ~ 286 1
23 NGC 1232 EmG 03 09 45.514 -20 34 45.48   10.67 9.87 9.53 10.2 ~ 289 0
24 NGC 1241 Sy2 03 11 14.6195456232 -08 55 18.775959888 12.07 12.84 11.99 12.7 12.5 ~ 210 2
25 NGC 1300 Sy2 03 19 41.0462219928 -19 24 40.187565432   11.16 10.42 9.90 10.7 ~ 536 0
26 NGC 1302 GiG 03 19 51.2026512864 -26 03 37.946814660   11.43   9.99 10.8 ~ 143 0
27 NGC 1343 AG? 03 37 49.7256129120 +72 34 16.612030092   14.1       ~ 73 0
28 NGC 1398 GiG 03 38 52.130 -26 20 16.22   10.37   8.90 10.1 ~ 234 0
29 NGC 1530 AG? 04 23 27.102 +75 17 44.05   13.40       ~ 277 1
30 NGC 1637 Sy2 04 41 28.1926876152 -02 51 28.667815488   11.4   11.0 11.3 ~ 418 0
31 NGC 3982 Sy1 11 56 28.1445516072 +55 07 30.859586652   12.20 11.70 11.18   ~ 550 1
32 M 61 Sy2 12 21 54.9282582888 +04 28 25.597367184 10.07 10.18 9.65     ~ 996 2
33 NGC 4314 LIN 12 22 32.0223000912 +29 53 43.814812200 11.72 11.43 10.58     ~ 479 1
34 M 100 AGN 12 22 54.9299993592 +15 49 20.296257960 10.04 10.05 9.35     ~ 1845 2
35 NGC 5248 GiG 13 37 32.0145074088 +08 53 06.496982448   11.4       ~ 508 0
36 NGC 5383 GiG 13 57 04.9709727768 +41 50 46.419238680   12.5   10.95   ~ 339 0
37 NGC 5430 EmG 14 00 45.820 +59 19 43.14   12.7       ~ 248 1
38 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 2914 2
39 NGC 5701 GiG 14 39 11.0751915840 +05 21 48.493104264 12.03 11.76 10.88     ~ 240 1
40 NGC 5730 GiP 14 39 52.1803415808 +42 44 32.817244524   14.7       ~ 82 0
41 NGC 5728 Sy2 14 42 23.8918506576 -17 15 11.240783784   14.34 13.40     ~ 594 0
42 NGC 5850 LIN 15 07 07.6828131840 +01 32 39.513281352   11.5   10.79 11.1 ~ 315 1
43 NGC 5905 H2G 15 15 23.3280793632 +55 31 01.926808032   13.6       ~ 273 1
44 NGC 5921 AG? 15 21 56.561 +05 04 13.94   12.7       ~ 276 0
45 NGC 5945 LIN 15 29 45.0107554248 +42 55 07.127871060   14.1       ~ 65 0
46 NGC 5953 GiP 15 34 32.4 +15 11 38   13.23 12.45     ~ 370 1
47 UGC 9902 LSB 15 34 33.171 +15 08 00.95   17       ~ 26 0
48 NGC 5954 GiP 15 34 35.175 +15 11 53.67   13.7       ~ 174 0
49 NGC 5970 GiP 15 38 29.9475459984 +12 11 11.681818188   12.2       ~ 176 0
50 NGC 5982 LIN 15 38 39.778 +59 21 21.21   12.4       ~ 293 0
51 NGC 6217 AGN 16 32 39.2100852960 +78 11 53.487076092   14.37 13.88     ~ 302 0
52 NGC 6412 GiG 17 29 37.522 +75 42 15.59   12.40       ~ 142 0
53 NGC 6384 AG? 17 32 24.2848390896 +07 03 37.531624968   13.2       ~ 304 0
54 NGC 6503 LIN 17 49 26.4207792072 +70 08 39.604132176 11.56 10.95 10.28 9.92   ~ 520 1
55 NGC 6574 GiG 18 11 51.2465713056 +14 58 54.747570108   12.5       ~ 179 0
56 NGC 6814 Sy1 19 42 40.5862186152 -10 19 25.108718844   15.33 14.21 11.7 11.3 ~ 807 0
57 NGC 6907 AG? 20 25 06.63 -24 48 33.0   11.91 11.30 10.47 11.3 ~ 177 2
58 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2527 2
59 NGC 6951 Sy2 20 37 14.1228088488 +66 06 20.049916392   11.64 10.65     ~ 526 2
60 NGC 7130 Sy2 21 48 19.5412287192 -34 57 04.492024884   12.86 13.87 11.57   ~ 450 0
61 NGC 7217 LIN 22 07 52.3984675584 +31 21 33.632293572   12.94 11.92     ~ 494 0
62 IC 1438 Sy1 22 16 29.0893049880 -21 25 50.454727752   12.63   11.57   ~ 85 0
63 NGC 7331 LIN 22 37 04.0506038088 +34 24 56.800076508 10.65 10.35 9.48     ~ 1227 2
64 NGC 7469 Sy1 23 03 15.6 +08 52 26 12.60 13.00 12.34     ~ 2095 3
65 NGC 7479 Sy2 23 04 56.6432243448 +12 19 22.357387020 11.74 11.60 10.85 10.47 9.66 ~ 742 2
66 NGC 7550 LIN 23 15 16.0606 +18 57 41.284   13.9   11.85   ~ 126 1
67 NGC 7606 EmG 23 19 04.7786629824 -08 29 06.331037820   11.5   10.47 11.1 ~ 191 0
68 NGC 7672 Sy2 23 27 31.4358992112 +12 23 06.832583628   15.05 14.21     ~ 90 0
69 NGC 7716 AG? 23 36 31.4564531712 +00 17 50.183061252   12.9   13.0 12.6 ~ 168 0
70 NGC 7723 Sy1 23 38 57.092 -12 57 39.68   11   10.78   ~ 191 0
71 NGC 7727 EmG 23 39 53.870 -12 17 34.84   11   10.55   ~ 172 0
72 NGC 7741 GiP 23 43 54.375 +26 04 32.07 11.70 11.84 11.31     ~ 291 1
73 NGC 7742 GiP 23 44 15.7534099368 +10 46 01.533226872   12.5       ~ 212 0
74 NGC 7769 LIN 23 51 03.9747703056 +20 09 01.552564620   12.77       ~ 149 1

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