1999AJ....118..670R

Query : 1999AJ....118..670R

1999AJ....118..670R - Astron. J., 118, 670-704 (1999/August-0)

The star formation efficiency within galaxies.

ROWND B.K. and YOUNG J.S.

Abstract (from CDS):

We combine Hα imaging with the CO-line observations of the Five College Radio Astronomy Observatory Extragalactic CO Survey to study the relationship between molecular gas and high-mass star formation for 568 regions in 121 galaxies at 45" resolution. Our study finds a strong correlation between these quantities when sampled locally within galaxies, consistent with recent studies of globally averaged quantities. For spiral galaxies, there are no strong radial gradients in the star formation efficiency across the star-forming disk, although star formation efficiencies measured in the outermost regions (R>9 kpc) of midsized galaxies tend to be systematically low. Additionally, star formation efficiencies in large (D0>60 kpc) galaxies are uniformly low at all radii compared with smaller galaxies. As a function of morphology and environment, the behavior of the star formation efficiency within galaxies is consistent with the results of our previous investigation of the global quantities. Among spirals the star formation efficiency does not depend on Hubble type, with a similar range of efficiencies within each type and less than 25% variation in the mean from type to type. Finally, relative to an isolated galaxy sample, the star formation efficiency is found to be sensitive only to extreme variations in the galaxy environment. The star formation efficiency decreases steadily with increasing H I deficiency among Virgo cluster spirals, and it is enhanced in strong interactions and mergers.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Evolution - Galaxies: ISM - Galaxies: Spiral - Galaxies: Starburst - ISM: Molecules - Stars: Formation

Simbad objects: 125

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Number of rows : 125
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 NGC 157 Sy2 00 34 46.7879913696 -08 23 47.273597952   11.0   10.03 10.7 ~ 366 1
2 NGC 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3588 2
3 NGC 278 H2G 00 52 04.3452013728 +47 33 01.675026036   10.5       ~ 244 1
4 NGC 488 GiG 01 21 46.7967133224 +05 15 24.623017524   15.0       ~ 299 0
5 NGC 520 AGN 01 24 35.07120 +03 47 32.6760 12.41 12.24 11.42     ~ 528 3
6 M 74 G 01 36 41.7451236624 +15 47 01.107512304 10.52 10.00 9.46 9.16   ~ 1934 1
7 NGC 660 Sy2 01 43 02.350 +13 38 44.45   12.02 11.16     ~ 588 2
8 NGC 891 H2G 02 22 32.907 +42 20 53.95 11.08 10.81 9.93 7.86   ~ 1741 2
9 NGC 925 H2G 02 27 16.913 +33 34 43.97   10.69 10.12 9.55   ~ 818 1
10 NGC 972 G 02 34 13.3574389680 +29 18 40.604917356   12.1 13.63     ~ 178 2
11 NGC 1055 EmG 02 41 45.233 +00 26 35.45 11.59 11.40 10.59 10.5 10.7 ~ 297 2
12 M 77 Sy2 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4897 2
13 NGC 1084 EmG 02 45 59.926 -07 34 43.10 11.22 11.59 10.73 10.55 11.1 ~ 386 2
14 NGC 1087 H2G 02 46 25.1550134904 -00 29 55.457857644   11.5   11.4 11.5 ~ 379 0
15 IC 342 AGN 03 46 48.514 +68 05 45.98   10.5       ~ 1579 1
16 IC 356 AG? 04 07 46.8869589504 +69 48 44.715725208   13.3       ~ 161 1
17 NGC 1569 rG 04 30 49.186 +64 50 52.52 11.72 11.86 11.03     ~ 1297 3
18 NGC 1614 Sy1 04 34 00.027 -08 34 44.57   14.66 13.99     ~ 697 1
19 NGC 1961 LIN 05 42 04.6327819680 +69 22 42.411028872   11.73 10.99     ~ 362 3
20 NGC 2146 AGN 06 18 37.710 +78 21 25.27 11.67 11.38 10.59     ~ 765 2
21 NGC 2339 H2G 07 08 20.5343958360 +18 46 48.812128644   12.3       ~ 150 1
22 NGC 2336 GiP 07 27 04.050 +80 10 41.05   13.46 12.51     ~ 251 0
23 NGC 2276 AG? 07 27 14.485 +85 45 16.20   12.3       ~ 393 0
24 NGC 2683 AGN 08 52 41.3064829584 +33 25 18.597681516 11.57 10.68 9.79 9.38   ~ 475 1
25 NGC 2775 AG? 09 10 20.1334093488 +07 02 16.874157048   11.417 10.481 9.920 8.994 ~ 377 0
26 NGC 2798 GiG 09 17 22.95407 +41 59 58.9560 13.03 13.04 12.32     ~ 338 3
27 APG 283 PaG 09 17 26.99 +41 59 48.8   12.2       ~ 193 1
28 NGC 2799 GiP 09 17 31.0045889856 +41 59 38.595688980   14.32 13.71     ~ 130 1
29 NGC 2841 LIN 09 22 02.6778711696 +50 58 35.737082868 10.43 10.09 9.22     ~ 1113 1
30 NGC 2903 AGN 09 32 10.111 +21 30 02.99 10.44 9.75 9.07 8.68   ~ 1204 3
31 NGC 2976 GiG 09 47 15.458 +67 54 58.97 11.77 11.03 10.16 9.51   ~ 712 1
32 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 6156 6
33 NGC 3079 Sy2 10 01 57.8789863992 +55 40 47.449758324 11.57 11.54 10.86     ~ 1476 3
34 NGC 3077 GiP 10 03 19.0965510921 +68 44 01.556166166 11.23 10.85 10.14 9.74   ~ 808 0
35 NGC 3147 Sy2 10 16 53.6388580752 +73 24 02.641798224   11.43 10.61     ~ 533 2
36 NGC 3180 GiG 10 18 16.985 +41 25 27.77   10.4       ~ 777 0
37 NGC 3310 AGN 10 38 45.85707 +53 30 11.8940   12.45 12.15     ~ 809 1
38 M 95 GiP 10 43 57.7313485800 +11 42 13.301191332 10.71 10.51 9.73 9.48   ~ 1238 2
39 NGC 3504 LIN 11 03 11.19147 +27 58 20.7660   13.48 12.93     ~ 545 2
40 NGC 3521 EmG 11 05 48.5680991376 -00 02 09.245076540 10.06 9.83 9.02 10.1 9.6 ~ 879 2
41 M 108 AGN 11 11 30.967 +55 40 26.84   10.70       ~ 497 1
42 NGC 3593 GiG 11 14 36.9731893800 +12 49 05.497790664   11.8       ~ 376 2
43 M 65 GiP 11 18 55.9084654776 +13 05 32.300703672   9.6       ~ 458 1
44 M 66 AGN 11 20 15.0 +12 59 29 9.85 9.65 8.92     ~ 1509 4
45 NGC 3631 AG? 11 21 02.8871865144 +53 10 10.415331660   11.0       ~ 385 1
46 NGC 3675 GiG 11 26 08.5641089832 +43 35 09.587062464   11.04   9.57   ~ 300 1
47 IC 694 AG? 11 28 27.312 +58 34 42.29   18.2       ~ 258 2
48 NGC 3690 IG 11 28 31.0 +58 33 41   13.19 12.86     ~ 1015 4
49 NGC 3690B GiP 11 28 31.02 +58 33 40.7   11.8       ~ 635 4
50 NGC 3690NE AGN 11 28 33.07 +58 33 54.2   11.8       ~ 635 4
51 NGC 3718 Sy2 11 32 34.8571790688 +53 04 04.520222040   11.35 10.61     ~ 408 1
52 NGC 3810 GiC 11 40 58.7615811624 +11 28 15.808680696   11.4       ~ 351 2
53 NGC 4038 EmG 12 01 53.002 -18 52 03.32   10.91   9.74 11.0 ~ 1364 1
54 NAME Antennae IG 12 01 53.170 -18 52 37.92           ~ 1749 0
55 NGC 4039 GiP 12 01 53.51 -18 53 10.3   11.08   9.77   ~ 1173 1
56 NGC 4041 SyG 12 02 12.2376697152 +62 08 14.096124312   11.6       ~ 270 1
57 NGC 4064 GiG 12 04 11.191 +18 26 36.42   12.5       ~ 186 0
58 NGC 4088 AGN 12 05 34.2230093952 +50 32 21.064017876   11.2       ~ 428 1
59 NGC 4102 Sy2 12 06 23.11513 +52 42 39.4160   11.8       ~ 449 1
60 NGC 4157 GiC 12 11 04.365 +50 29 04.85 12.48 12.15 11.35     ~ 373 2
61 NGC 4178 H2G 12 12 46.443 +10 51 57.59   12.9       ~ 367 0
62 NGC 4189 GiC 12 13 47.2380839784 +13 25 29.445094632   12.51 11.74     ~ 294 1
63 M 98 LIN 12 13 48.2910686976 +14 54 01.953475200 11.25 10.95 10.14     ~ 499 2
64 NGC 4194 rG 12 14 09.615 +54 31 35.93   13.79 13.30     ~ 467 2
65 NGC 4206 SyG 12 15 16.8236744928 +13 01 26.410149444 12.81 12.82 12.15     ~ 246 1
66 NGC 4212 H2G 12 15 39.3368219184 +13 54 05.388525900   11.9       ~ 328 0
67 NGC 4216 AGN 12 15 54.444 +13 08 57.84 11.51 10.99 10.01     ~ 424 1
68 NGC 4237 AGN 12 17 11.4198657984 +15 19 26.557164264   12.3       ~ 266 0
69 M 99 H2G 12 18 49.625 +14 24 59.36 10.45 10.44 9.87     ~ 1004 2
70 NGC 4293 LIN 12 21 12.891 +18 22 56.64   11.6       ~ 311 2
71 NGC 4294 GiC 12 21 17.787 +11 30 39.99   12.6       ~ 320 0
72 NGC 4298 GiC 12 21 32.7578814360 +14 36 22.048690716   12.04 11.34     ~ 358 1
73 NGC 4299 GiC 12 21 40.548 +11 29 59.74   12.8       ~ 271 0
74 M 61 Sy2 12 21 54.9282582888 +04 28 25.597367184 10.07 10.18 9.65     ~ 1084 1
75 M 100 AGN 12 22 54.9299993592 +15 49 20.296257960 10.04 10.05 9.35     ~ 1963 2
76 NGC 4351 GiG 12 24 01.560 +12 12 18.09   13.5       ~ 239 0
77 NGC 4380 BLL 12 25 22.178 +10 01 00.14   13.4       ~ 275 0
78 NGC 4394 GiP 12 25 55.6366312872 +18 12 50.110707636   11.9       ~ 379 0
79 NGC 4413 GiP 12 26 32.2311385872 +12 36 38.426455080   13.6 12.25     ~ 252 1
80 NGC 4419 LIN 12 26 56.4505296720 +15 02 50.688833388 12.42 12.08 11.16     ~ 419 2
81 NGC 4424 H2G 12 27 11.5741235616 +09 25 14.330453700   13.1       ~ 407 0
82 NGC 4438 LIN 12 27 45.6705493536 +13 00 31.708096380 11.37 11.02 10.17     ~ 668 2
83 NGC 4450 LIN 12 28 29.5910654016 +17 05 05.976112020   10.90 10.08     ~ 587 2
84 NGC 4459 H2G 12 29 00.0329905416 +13 58 42.826603332   11.6       ~ 567 0
85 NGC 4498 GiG 12 31 39.5627385744 +16 51 09.625381632   12.8       ~ 244 0
86 M 88 Sy2 12 31 59.1525062448 +14 25 13.148971824   14.33 13.18     ~ 843 1
87 NGC 4519 GiG 12 33 30.278 +08 39 16.06   12.8       ~ 295 0
88 NGC 4522 GiG 12 33 39.657 +09 10 29.54   13.6       ~ 396 0
89 NGC 4526 GiC 12 34 03.02853 +07 41 56.9040   10.6       ~ 707 0
90 NGC 4527 AGN 12 34 08.49600 +02 39 13.7160   12.4       ~ 549 2
91 NGC 4532 H2G 12 34 19.329 +06 28 03.73   12.3       ~ 304 2
92 NGC 4535 H2G 12 34 20.3443516704 +08 11 51.908488116   11.1       ~ 679 0
93 NGC 4536 H2G 12 34 27.12887 +02 11 16.3680 11.14 11.16 10.55 17.393   ~ 913 3
94 M 91 LIN 12 35 26.4446761320 +14 29 46.760333748   14.63 13.57     ~ 639 0
95 NGC 4561 GiG 12 36 08.137 +19 19 21.32   12.7       ~ 211 0
96 NGC 4567 H2G 12 36 32.6979947472 +11 15 28.716262668 12.25 12.06 11.31     ~ 339 2
97 NGC 4568 H2G 12 36 34.292 +11 14 19.07   12.11 11.19     ~ 394 2
98 M 90 Sy2 12 36 49.8009839880 +13 09 46.523813040 10.56 10.26 9.54     ~ 953 1
99 NGC 4571 GiC 12 36 56.3722998960 +14 13 02.296534836   13.6       ~ 368 1
100 M 58 Sy2 12 37 43.59747 +11 49 05.1240 10.80 10.48 9.66     ~ 1140 2
101 NGC 4639 Sy1 12 42 52.3785000336 +13 15 26.706153600   13.62 12.72     ~ 642 0
102 NGC 4647 H2G 12 43 32.542 +11 34 56.89   12.5 12.5     ~ 423 1
103 NGC 4651 LIN 12 43 42.6376070448 +16 23 36.002649300   11.30 10.92 10.42 9.84 ~ 537 0
104 NGC 4654 H2G 12 43 56.638 +13 07 34.86   11.8       ~ 600 1
105 NGC 4689 H2G 12 47 45.5568088416 +13 45 46.135889100   12.8       ~ 418 0
106 NGC 4710 H2G 12 49 38.958 +15 09 55.76   11.6       ~ 329 0
107 NGC 4713 GiG 12 49 57.8802780576 +05 18 40.933127196   12.3       ~ 320 1
108 M 94 SyG 12 50 53.0737971432 +41 07 12.900884628 9.15 8.96 8.24 7.78   ~ 1476 2
109 NGC 4808 GiG 12 55 48.940 +04 18 14.74   12.5       ~ 244 1
110 Z 294-4 Sy1 12 56 14.2341182928 +56 52 25.238373852   14.68 13.84     ~ 2096 3
111 M 64 SyG 12 56 43.696 +21 40 57.57   9.36 8.52     ~ 1010 2
112 NGC 5005 LIN 13 10 56.312 +37 03 32.19   14.67 13.67     ~ 567 2
113 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
114 NGC 5248 G 13 37 32.0145074088 +08 53 06.496982448   11.4       ~ 554 0
115 NGC 5906 GiG 15 15 53.687 +56 19 43.86   11.4       ~ 807 0
116 IC 1127 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 3090 4
117 NGC 6240 Sy2 16 52 58.9 +02 24 03   14.31 13.37     ~ 1734 2
118 NGC 6643 AG? 18 19 46.370 +74 34 06.23   11.80       ~ 320 1
119 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2661 2
120 NGC 6951 Sy2 20 37 14.1228088488 +66 06 20.049916392   11.64 10.65     ~ 553 2
121 NGC 7217 LIN 22 07 52.3984675584 +31 21 33.632293572   12.94 11.92     ~ 511 0
122 NGC 7331 LIN 22 37 04.0506038088 +34 24 56.800076508 10.65 10.35 9.48     ~ 1284 2
123 NGC 7479 Sy2 23 04 56.6432243448 +12 19 22.357387020 11.74 11.60 10.85 10.47 9.66 ~ 783 2
124 NGC 7541 GiG 23 14 43.857 +04 32 02.04   12.7       ~ 333 1
125 NGC 7625 AG? 23 20 30.132 +17 13 32.16 13.31 13.23 11.98 11.25   ~ 280 0

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