2000AJ....119.1711H

Query : 2000AJ....119.1711H

2000AJ....119.1711H - Astron. J., 119, 1711-1719 (2000/April-0)

Discrete radio sources in the spiral galaxy NGC 6946.

HYMAN S.D., LACEY C.K., WEILER K.W. and VAN DYK S.D.

Abstract (from CDS):

We analyze the 2"-resolution, high-sensitivity radio continuum observations of the nearby spiral galaxy NGC 6946 at 6 and 20 cm by Lacey, Duric, & Goss to derive a luminosity function at each wavelength for 43 H II region candidates and for 15 supernova remnant (SNR) candidates. The H II region radio luminosity functions are best fitted by power laws consistent with the shape of the optical luminosity function of Bonnarel, Boulsteix, & Marcelin. The SNR luminosity functions are fitted by considerably steeper power laws than the H II region luminosity functions. Extinctions to the H II regions are estimated from a comparison of radio flux densities with new optical fluxes derived from the Hα observations of Van Dyk. A dependence of extinction on galactocentric radius is investigated, but none is found.

Abstract Copyright: ∼

Journal keyword(s): ISM: Dust, Extinction - galaxies: individual (NGC 6946) - ISM: H II Regions - Radio Continuum - ISM: Supernova Remnants

Simbad objects: 83

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Number of rows : 83
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 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
3 NGC 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3588 2
4 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
5 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
6 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
7 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
8 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 6156 6
9 NGC 3631 AG? 11 21 02.8871865144 +53 10 10.415331660   11.0       ~ 385 1
10 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2512 4
11 M 100 AGN 12 22 54.9299993592 +15 49 20.296257960 10.04 10.05 9.35     ~ 1963 2
12 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
13 [HSH2003] 2 Rad 20 34 19.0 +60 10 10           ~ 3 0
14 [JKM2001] NGC 6946 1 HII 20 34 19.9 +60 10 06           ~ 3 0
15 [JKM2001] NGC 6946 2 HII 20 34 22.7 +60 10 34           ~ 3 0
16 SN 1939C SN* 20 34 24.0678381888 +60 09 29.851268436   13.7 13.8     SNI: 41 1
17 [LDG97] 7 Rad 20 34 30.4 +60 08 30           ~ 2 0
18 [LDG97] 8 SNR 20 34 31.05 +60 08 27.5           ~ 6 0
19 [LDG97] 9 Rad 20 34 32.1 +60 10 18           ~ 2 0
20 [JKM2001] NGC 6946 4 HII 20 34 34.0 +60 11 25           ~ 3 0
21 [LDG97] 12 SNR 20 34 34.78 +60 11 33.6           ~ 4 0
22 [LDG97] 13 SNR 20 34 34.88 +60 11 38.5           ~ 5 0
23 [LDG97] 19 SNR 20 34 36.08 +60 11 40.4           ~ 3 0
24 [LDG97] 16 SNR 20 34 36.09 +60 08 16.8           ~ 3 0
25 [HSH2003] 15 SNR 20 34 36.48 +60 09 30.4           ~ 18 0
26 [LDG97] 21 Rad 20 34 37.3 +60 08 37           ~ 2 0
27 [LDG97] 23 SNR 20 34 39.41 +60 04 52.8           ~ 4 0
28 [HSH2003] 21 SNR 20 34 41.39 +60 08 46.3           ~ 9 0
29 [LDG97] 27 Rad 20 34 43.6 +60 07 26           ~ 2 0
30 [LDG97] 28 Rad 20 34 44.1 +60 07 22           ~ 2 0
31 SN 1917A SN* 20 34 46.9 +60 07 29   13.6       SNII 52 1
32 [LDG97] 37 Rad 20 34 48.4 +60 08 21           ~ 3 0
33 [JKM2001] NGC 6946 6 HII 20 34 49.5 +60 08 01           ~ 3 0
34 [LDG97] 44 SNR 20 34 49.69 +60 12 40.4           ~ 3 0
35 [LDG97] 45 SR? 20 34 50.1 +60 09 12           ~ 3 0
36 [LDG97] 47 SNR 20 34 50.80 +60 07 47.9           ~ 6 0
37 [FHL2008] NGC 6946 45 SNR 20 34 50.94 +60 10 20.6           ~ 10 0
38 SN 1969P SN* 20 34 51.3 +60 06 14   14.2       ~ 33 1
39 [LDG97] 52 Rad 20 34 51.4 +60 09 39           ~ 2 0
40 [LDG97] 54 SR? 20 34 51.4 +60 09 34           ~ 3 0
41 [LDG97] 51 SNR 20 34 51.50 +60 07 39.0           ~ 11 0
42 [LDG97] 58 Rad 20 34 52.3 +60 12 46           ~ 2 0
43 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2661 2
44 [LDG97] 59 SNR 20 34 52.73 +60 08 59.4           ~ 3 0
45 [LDG97] 60 SNR 20 34 52.80 +60 07 54.2           ~ 6 0
46 [LDG97] 61 Rad 20 34 52.8 +60 09 30           ~ 2 0
47 [LDG97] 62 SNR 20 34 52.84 +60 08 51.7           ~ 3 0
48 [LDG97] 64 Rad 20 34 53.3 +60 07 18           ~ 2 0
49 [LDG97] 66 SR? 20 34 53.4 +60 07 16           ~ 5 0
50 [LDG97] 69 SNR 20 34 53.72 +60 09 18.8           ~ 6 0
51 [LDG97] 70 SNR 20 34 53.85 +60 10 29.7           ~ 3 0
52 [JKM2001] NGC 6946 7 HII 20 34 54.3 +60 08 53           ~ 3 0
53 [JKM2001] NGC 6946 8 HII 20 34 54.6 +60 07 39           ~ 3 0
54 [LDG97] 78 Rad 20 34 55.1 +60 09 24           ~ 2 0
55 [LDG97] 80 SNR 20 34 56.69 +60 08 26.3           ~ 4 0
56 SN 1968D SN* 20 34 58.40 +60 09 34.4   13.5 13.5     SNII 74 1
57 [LDG97] 83 SNR 20 34 58.65 +60 10 51.9           ~ 6 0
58 NAME NGC 6946 SNR SNR 20 35 00.74 +60 11 30.6           ~ 117 0
59 [JKM2001] NGC 6946 10 HII 20 35 03.7 +60 11 00           ~ 3 0
60 [LDG97] 89 SNR 20 35 04.18 +60 10 54.7           ~ 4 0
61 [LDG97] 96 Rad 20 35 06.0 +60 11 01           ~ 2 0
62 [VAR77] C HII 20 35 06 +60 11.0           ~ 4 0
63 [LDG97] 97 SNR 20 35 06.09 +60 10 56.3           ~ 3 0
64 [LDG97] 98 Rad 20 35 06.6 +60 11 00           ~ 2 0
65 [LDG97] 100 Rad 20 35 07.0 +60 10 47           ~ 2 0
66 [HSH2003] 65 SNR 20 35 08.08 +60 11 13.1           ~ 9 0
67 [LDG97] 102 SNR 20 35 08.26 +60 09 53.6           ~ 3 0
68 [LDG97] 104 Rad 20 35 11.0 +60 08 57           ~ 2 0
69 [LDG97] 105 SNR 20 35 11.24 +60 10 34.5           ~ 3 0
70 [LDG97] 106 SNR 20 35 11.44 +60 10 31.6           ~ 3 0
71 [LDG97] 108 Rad 20 35 12.9 +60 08 50           ~ 2 0
72 [LDG97] 110 Rad 20 35 16.7 +60 11 00           ~ 3 0
73 [LDG97] 112 Rad 20 35 20.6 +60 07 41           ~ 2 0
74 SN 1948B SN* 20 35 21.5 +60 10 16   14.0 14.0     SNIIP 77 1
75 [LDG97] 115 SNR 20 35 23.65 +60 09 50.1           ~ 4 0
76 [LDG97] 117 Rad 20 35 24.8 +60 10 00           ~ 3 0
77 [LDG97] 118 SNR 20 35 25.25 +60 09 57.9           ~ 5 0
78 SN 1980K SN* 20 35 30.07 +60 06 23.7   11.6       SNIIL 482 1
79 NGC 6951 Sy2 20 37 14.1228088488 +66 06 20.049916392   11.64 10.65     ~ 553 2
80 [VAR77] C1 HII ~ ~           ~ 2 0
81 [VAR77] C3 HII ~ ~           ~ 2 0
82 NAME Local Group GrG ~ ~           ~ 9325 0
83 [VAR77] C2 HII ~ ~           ~ 2 0

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