2017MNRAS.467.4282M

Query : 2017MNRAS.467.4282M

2017MNRAS.467.4282M - Mon. Not. R. Astron. Soc., 467, 4282-4292 (2017/June-1)

The JCMT Nearby Galaxies Legacy Survey - XI. Environmental variations in the atomic and molecular gas radial profiles of nearby spiral galaxies.

MOK A., WILSON C.D., KNAPEN J.H., SANCHEZ-GALLEGO J.R., BRINKS E. and ROSOLOWSKY E.

Abstract (from CDS):

We present an analysis of the radial profiles of a sample of 43 H I-flux selected spiral galaxies from the Nearby Galaxies Legacy Survey (NGLS) with resolved James Clerk Maxwell Telescope (JCMT) CO J = 3 - 2 and/or Very Large Array (VLA) H I maps. Comparing the Virgo and non-Virgo populations, we confirm that the H I discs are truncated in the Virgo sample, even for these relatively H I-rich galaxies. On the other hand, the H2 distribution is enhanced for the Virgo galaxies near their centres, resulting in higher H2 to H I ratios and steeper H2 and total gas radial profiles. This is likely due to the effects of moderate ram pressure stripping in the cluster environment, which would preferentially remove low-density gas in the outskirts while enhancing higher density gas near the centre. Combined with Hα star formation rate data, we find that the star formation efficiency (SFR/H2) is relatively constant with radius for both samples, but the Virgo galaxies have an ∼40 per cent lower star formation efficiency than the non-Virgo galaxies.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: formation - ISM: molecules - galaxies: ISM - galaxies: spiral - galaxies: spiral

Simbad objects: 45

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Number of rows : 45
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 210 GiP 00 40 34.9927609368 -13 52 21.999585108   11.8   11.00 11.4 ~ 174 0
2 NGC 450 H2G 01 15 30.4565036568 -00 51 39.125259576   13.4   13.3 13.2 ~ 227 0
3 NGC 1140 EmG 02 54 33.5271666624 -10 01 43.142143908 12.41 12.84 12.49 13.6 13.5 ~ 286 1
4 NGC 1325 EmG 03 24 25.5769895640 -21 32 38.626241964   12.28 11.55 11.13 11.6 ~ 165 0
5 UGC 3439 GiP 06 23 55.182 +78 31 48.41 13.52 13.50 12.87     ~ 55 1
6 NGC 2816 GiG 09 07 33.5746410432 +60 28 45.818789124   12.0       ~ 202 0
7 NGC 3077 GiP 10 03 19.0965510921 +68 44 01.556166166 11.23 10.85 10.14 9.74   ~ 771 0
8 NGC 3162 GiG 10 13 31.5928405755 +22 44 15.161785167   12.2       ~ 140 0
9 NGC 3227 Sy1 10 23 30.5765149296 +19 51 54.282206700   12.61 11.79     ~ 1703 1
10 NGC 3346 EmG 10 43 38.9309584368 +14 52 18.437883960   12.80       ~ 183 0
11 NGC 3437 EmG 10 52 35.7533541720 +22 56 02.883954120   12.575 11.961 11.474 10.818 ~ 184 1
12 NGC 3507 GiP 11 03 25.3619733360 +18 08 07.607343732   11.4       ~ 184 0
13 NGC 3684 GiP 11 27 11.2076836512 +17 01 48.596515284   12.1       ~ 175 0
14 NGC 3782 GiG 11 39 20.680 +46 30 48.20   13.1       ~ 108 0
15 ACO 1367 ClG 11 44 44.6 +19 41 59           ~ 1076 1
16 NGC 3982 Sy1 11 56 28.1445516072 +55 07 30.859586652   12.20 11.70 11.18   ~ 550 1
17 IC 750 AGN 11 58 52.2 +42 43 21   12.7 12.17     ~ 175 1
18 NGC 4041 SyG 12 02 12.2376697152 +62 08 14.096124312   11.6       ~ 252 1
19 NGC 4123 AGN 12 08 11.1187718376 +02 52 41.781736956   13.1       ~ 340 2
20 M 99 H2G 12 18 49.625 +14 24 59.36 10.45 10.44 9.87     ~ 919 2
21 NGC 4273 GiP 12 19 56.063 +05 20 36.12   12.3       ~ 263 0
22 NGC 4294 GiP 12 21 17.787 +11 30 39.99   12.6       ~ 302 0
23 NGC 4298 GiP 12 21 32.7578814360 +14 36 22.048690716   12.04 11.34     ~ 328 1
24 M 61 Sy2 12 21 54.9282582888 +04 28 25.597367184 10.07 10.18 9.65     ~ 998 2
25 NGC 4383 AGN 12 25 25.5 +16 28 12 12.41 12.67 12.12     ~ 253 1
26 NGC 4390 GiG 12 25 50.6659863456 +10 27 32.509985148   13.7       ~ 164 0
27 NGC 4396 GiG 12 25 58.802 +15 40 17.28 12.94 13.06 12.58     ~ 193 1
28 NAME Virgo Cluster ClG 12 26 32.1 +12 43 24           ~ 6645 0
29 NGC 4430 GiP 12 27 26.4060329472 +06 15 45.972776664   13.4       ~ 162 0
30 NGC 4480 GiG 12 30 26.7893754432 +04 14 47.674860000   13.4       ~ 153 0
31 M 91 LIN 12 35 26.4446761320 +14 29 46.760333748   14.63 13.57     ~ 594 0
32 NGC 4567 GiP 12 36 32.6979947472 +11 15 28.716262668 12.25 12.06 11.31     ~ 325 2
33 NGC 4568 GiP 12 36 34.292 +11 14 19.07   12.11 11.19     ~ 381 2
34 M 58 Sy2 12 37 43.5 +11 49 06 10.80 10.48 9.66     ~ 1079 2
35 NGC 4647 H2G 12 43 32.542 +11 34 56.89   12.5 12.5     ~ 408 0
36 NGC 4651 LIN 12 43 42.6376070448 +16 23 36.002649300   11.30 10.92 10.42 9.84 ~ 514 0
37 NGC 4654 GiP 12 43 56.638 +13 07 34.86   11.8       ~ 568 1
38 NGC 4713 GiG 12 49 57.8802780576 +05 18 40.933127196   12.3       ~ 305 0
39 NGC 4771 EmG 12 53 21.273 +01 16 09.02   12.92   12.4 12.2 ~ 128 1
40 NGC 4772 LIN 12 53 29.1636448512 +02 10 06.146331708 12.29 11.96 11.04     ~ 253 1
41 NGC 4775 EmG 12 53 45.707 -06 37 19.73   12.3   11.19 12.0 ~ 158 0
42 NGC 4808 GiG 12 55 48.940 +04 18 14.74   12.5       ~ 230 0
43 IC 3908 EmG 12 56 40.624 -07 33 46.08   13.5   12.19 12.6 ~ 90 0
44 NGC 6140 AG? 16 20 58.162 +65 23 25.98   12.6       ~ 109 0
45 NGC 7742 GiP 23 44 15.7534099368 +10 46 01.533226872   12.5       ~ 212 0

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