2013MNRAS.436..921T

Query : 2013MNRAS.436..921T

2013MNRAS.436..921T - Mon. Not. R. Astron. Soc., 436, 921-933 (2013/November-3)

The James Clerk Maxwell Telescope Nearby Galaxies Legacy Survey - IX. 12CO J = 3⟶2 observations of NGC 2976 and NGC 3351.

TAN B.-K., LEECH J., RIGOPOULOU D., WARREN B.E., WILSON C.D., ATTEWELL D., AZIMLU M., BENDO G.J., BUTNER H.M., BRINKS E., CHANIAL P., CLEMENTS D.L., HEESEN V., ISRAEL F., KNAPEN J.H., MATTHEWS H.E., MORTIER A.M.J., MUHLE S., SANCHEZ-GALLEGO J.R., TILANUS R.P.J., USERO A., VAN DER WERF P. and ZHU M.

Abstract (from CDS):

We present 12CO J = 3⟶2 maps of NGC 2976 and NGC 3351 obtained with the James Clerk Maxwell Telescope (JCMT), both early targets of the JCMT Nearby Galaxy Legacy Survey (NGLS). We combine the present observations with 12CO J = 1⟶0 data and find that the computed 12CO J = 3⟶2 to 12CO J = 1⟶0 line ratio (R31) agrees with values measured in other NGLS field galaxies. We compute the MH2 value and find that it is robust against the value of R31 used. Using Hi data from The Hi Nearby Galaxy Survey, we find a tight correlation between the surface density of H2 and star formation rate density for NGC 3351 when 12CO J = 3⟶2 data are used. Finally, we compare the 12CO J = 3⟶2 intensity with the polycyclic aromatic hydrocarbon (PAH) 8µm surface brightness and find a good correlation in the high surface brightness regions. We extend this study to include all 25 Spitzer Infrared Nearby Galaxies Survey galaxies within the NGLS sample and find a tight correlation at large spatial scales. We suggest that both PAH 8µm and 12CO J = 3⟶2 are likely to originate in regions of active star formation.

Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): ISM: molecules - galaxies: individual: NGC 2976 - galaxies: individual: NGC 3351 - galaxies: ISM - infrared: galaxies

Simbad objects: 27

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Number of rows : 27
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 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
2 M 74 G 01 36 41.7451236624 +15 47 01.107512304 10.52 10.00 9.46 9.16   ~ 1934 1
3 NGC 925 H2G 02 27 16.913 +33 34 43.97   10.69 10.12 9.55   ~ 818 1
4 NGC 2403 AGN 07 36 51.3381434280 +65 36 09.650825640 9.31 8.84 8.38 8.19   ~ 1887 1
5 NGC 2841 LIN 09 22 02.6778711696 +50 58 35.737082868 10.43 10.09 9.22     ~ 1113 1
6 NGC 2976 GiG 09 47 15.458 +67 54 58.97 11.77 11.03 10.16 9.51   ~ 712 1
7 NGC 3049 EmG 09 54 49.651 +09 16 17.90   13.04       ~ 346 1
8 NAME M 81-82 Group GrG 09 55 +69.1           ~ 758 0
9 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
10 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 6156 6
11 NGC 3180 GiG 10 18 16.985 +41 25 27.77   10.4       ~ 777 0
12 NGC 3198 EmG 10 19 54.990 +45 32 58.88 10.83 10.87 10.33     ~ 946 1
13 Z 266-55 AGN 10 32 31.956 +54 24 03.53 13.29 13.66 13.13 12.71 12.27 ~ 381 1
14 M 95 GiP 10 43 57.7313485800 +11 42 13.301191332 10.71 10.51 9.73 9.48   ~ 1238 2
15 NGC 3521 EmG 11 05 48.5680991376 -00 02 09.245076540 10.06 9.83 9.02 10.1 9.6 ~ 879 2
16 M 66 AGN 11 20 15.0 +12 59 29 9.85 9.65 8.92     ~ 1509 4
17 NGC 3938 GiG 11 52 49.4335936248 +44 07 14.697085116 10.80 10.90 10.38     ~ 566 1
18 M 99 H2G 12 18 49.625 +14 24 59.36 10.45 10.44 9.87     ~ 1004 2
19 M 100 AGN 12 22 54.9299993592 +15 49 20.296257960 10.04 10.05 9.35     ~ 1963 2
20 NGC 4559 H2G 12 35 57.6402869976 +27 57 35.859278160   10.46 10.01     ~ 667 1
21 M 90 Sy2 12 36 49.8009839880 +13 09 46.523813040 10.56 10.26 9.54     ~ 953 1
22 M 58 Sy2 12 37 43.59747 +11 49 05.1240 10.80 10.48 9.66     ~ 1140 2
23 NGC 4631 GiC 12 42 08.009 +32 32 29.44   9.78 9.19 9.10   ~ 1154 3
24 M 94 SyG 12 50 53.0737971432 +41 07 12.900884628 9.15 8.96 8.24 7.78   ~ 1476 2
25 M 64 SyG 12 56 43.696 +21 40 57.57   9.36 8.52     ~ 1010 2
26 NGC 5033 Sy2 13 13 27.535 +36 35 37.14   11.01 12.03 9.73   ~ 909 1
27 M 63 LIN 13 15 49.2741893928 +42 01 45.728076108   9.34 8.59 8.35   ~ 1292 2

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