1997A&A...322...29N

Query : 1997A&A...322...29N

1997A&A...322...29N - Astronomy and Astrophysics, volume 322, 29-37 (1997/6-1)

A radio continuum survey of Shapley-Ames galaxies at λ 2.8cm. III. The radio-far infrared correlation.

NIKLAS S.

Abstract (from CDS):

Radio flux densities of Shapley-Ames galaxies at λ2.8cm from Niklas et al. (1995A&AS..114...21N, Paper I) and at λ20cm from Condon (1987ApJS...65..485C, C87) have been used to investigate the radio-far infrared (FIR) correlation at two different radio wavelengths. The correlation between monochromatic radio and the FIR luminosity was found to be non-linear (P2.8cm∝LFIR1.09±0.04 and P20cm∝LFIR1.23±0.05). Galaxies with Seyfert activity often exhibit enhanced radio emission compared to the FIR. Interacting and Starburst Galaxies do not show significant deviations from the correlation. For 74 galaxies with separated thermal and non-thermal radio emission the thermal radio luminosity was found to be proportional to the FIR luminosity. At both frequencies the non-thermal radio luminosity is non-linearly connected to the FIR luminosity (Pnth∝LFIR1.25±0.08). From the ratio Pth/LFIR one can conclude that ≃30% of the FIR emission can be attributed to dust associated with massive star-forming regions.

Abstract Copyright: ∼

Journal keyword(s): galaxies: spiral - infrared: galaxies - radio continuum: galaxies - ISM: cosmic rays

Simbad objects: 22

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Number of rows : 22
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 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3332 2
2 M 77 Sy2 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4597 2
3 NGC 2276 AG? 07 27 14.485 +85 45 16.20   12.3       ~ 375 0
4 NGC 2655 Sy2 08 55 37.731 +78 13 23.10   12.03 11.08     ~ 296 2
5 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 5854 6
6 NGC 3079 Sy2 10 01 57.8789863992 +55 40 47.449758324 11.57 11.54 10.86     ~ 1390 3
7 NGC 3718 Sy2 11 32 34.8571790688 +53 04 04.520222040   11.35 10.61     ~ 384 1
8 NGC 3953 GiG 11 53 49.0086582552 +52 19 36.475395312   11.08   9.71   ~ 359 0
9 NGC 4038 EmG 12 01 53.002 -18 52 03.32   10.91   9.74 11.0 ~ 1331 1
10 NAME Antennae IG 12 01 53.170 -18 52 37.92           ~ 1689 0
11 NGC 4039 GiP 12 01 53.51 -18 53 10.3   11.08   9.77   ~ 1159 1
12 NGC 4236 GiG 12 16 42.118 +69 27 45.25 10.97 10.58 10.08 9.90   ~ 400 1
13 M 100 AGN 12 22 54.9299993592 +15 49 20.296257960 10.04 10.05 9.35     ~ 1844 2
14 NGC 4438 LIN 12 27 45.6705493536 +13 00 31.708096380 11.37 11.02 10.17     ~ 635 2
15 NGC 4450 LIN 12 28 29.5910654016 +17 05 05.976112020   10.90 10.08     ~ 563 2
16 M 88 Sy2 12 31 59.1525062448 +14 25 13.148971824   14.33 13.18     ~ 803 1
17 NGC 4535 H2G 12 34 20.3443516704 +08 11 51.908488116   11.1       ~ 615 0
18 M 58 Sy2 12 37 43.5 +11 49 06 10.80 10.48 9.66     ~ 1077 2
19 M 104 LIN 12 39 59.43185902 -11 37 22.9961800 9.51 9.55 8.00 8.05   ~ 1394 3
20 NGC 4656 GiP 12 43 57.6889089768 +32 10 13.345914504   10.96 10.52     ~ 363 3
21 NGC 4689 H2G 12 47 45.5568088416 +13 45 46.135889100   12.8       ~ 385 0
22 NGC 4699 EmG 12 49 02.186 -08 39 51.49   10.8   10.01 10.3 ~ 210 0

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