2020ApJ...900...53C

Query : 2020ApJ...900...53C

2020ApJ...900...53C - Astrophys. J., 900, 53-53 (2020/September-1)

Dissecting the global cold dust properties and possible submillimeter excess of 13 nearby spiral galaxies from the NGLS.

CHANG Z., ZHOU J., WILSON C.D., ESIMBEK J., QIU J., LI D., ZHOU M., HE Y., JI W., TANG X., WU G. and LI J.

Abstract (from CDS):

We select 13 nearby spiral galaxies from the Nearby Galaxies Legacy Survey (NGLS) project and perform spectral energy distribution fitting for each galaxy applying two-component modified blackbody models on a global scale aim to probe the potential submillimeter (submm) excess. We find that NGC 2976, NGC 3351, and NGC 4631 show excess emission at 850 µm when using βc = 2.0. The contributions of CO(3-2), free-free emission or synchrotron radiation cannot explain their 850 µm excess. Our results suggest that a submm excess at 850 µm may be more easily detected for galaxies with faint total infrared luminosity and low cold dust mass. The colder temperature of cold dust, the more radiation of dust there is at 850 µm. The submm excess are prone to be detected in spiral galaxies with low stellar mass. As the metallicity of galaxies become poor, the submm excess is more obvious.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Spiral galaxies - Submillimeter astronomy - Interstellar medium

Simbad objects: 23

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Number of rows : 23
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 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
2 NGC 337 EmG 00 59 50.090 -07 34 40.66 11.97 12.06 11.61 12.4 12.2 ~ 297 2
3 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
4 M 74 G 01 36 41.7451236624 +15 47 01.107512304 10.52 10.00 9.46 9.16   ~ 1934 1
5 NGC 1512 GiP 04 03 54.281 -43 20 55.86 11.30 11.43 10.54 10.37   ~ 457 1
6 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
7 NGC 2976 GiG 09 47 15.458 +67 54 58.97 11.77 11.03 10.16 9.51   ~ 712 1
8 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
9 NAME M 82 Group GrG 09 55 53.0 +69 40 50           ~ 27 0
10 NGC 3227 Sy1 10 23 30.5765149296 +19 51 54.282206700   12.61 11.79     ~ 1807 2
11 M 95 GiP 10 43 57.7313485800 +11 42 13.301191332 10.71 10.51 9.73 9.48   ~ 1238 2
12 NGC 3521 EmG 11 05 48.5680991376 -00 02 09.245076540 10.06 9.83 9.02 10.1 9.6 ~ 879 2
13 M 66 AGN 11 20 15.0 +12 59 29 9.85 9.65 8.92     ~ 1509 4
14 M 99 H2G 12 18 49.625 +14 24 59.36 10.45 10.44 9.87     ~ 1004 2
15 M 100 AGN 12 22 54.9299993592 +15 49 20.296257960 10.04 10.05 9.35     ~ 1963 2
16 NGC 4376 GiG 12 25 18.0159139968 +05 44 28.133108988   13.9       ~ 136 0
17 M 90 Sy2 12 36 49.8009839880 +13 09 46.523813040 10.56 10.26 9.54     ~ 953 1
18 M 58 Sy2 12 37 43.59747 +11 49 05.1240 10.80 10.48 9.66     ~ 1140 2
19 NGC 4631 GiC 12 42 08.009 +32 32 29.44   9.78 9.19 9.10   ~ 1154 3
20 M 94 SyG 12 50 53.0737971432 +41 07 12.900884628 9.15 8.96 8.24 7.78   ~ 1476 2
21 M 64 SyG 12 56 43.696 +21 40 57.57   9.36 8.52     ~ 1010 2
22 M 63 LIN 13 15 49.2741893928 +42 01 45.728076108   9.34 8.59 8.35   ~ 1292 2
23 NGC 7793 GiG 23 57 49.7540045856 -32 35 27.701550744 10.26 9.74 9.28 9.06 9.7 ~ 1188 2

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