2005A&A...439..963T

Query : 2005A&A...439..963T

2005A&A...439..963T - Astronomy and Astrophysics, volume 439963-972 (2005/9-1)

Investigation of flat spectrum radio sources by the interplanetary scintillation method at 111 MHz.

TYUL'BASHEV S.A. and AUGUSTO P.

Abstract (from CDS):

Interplanetary scintillation observations of 48 of the 55 Augusto et al. (1998MNRAS.299.1159A) flat spectrum radio sources were carried out at 111MHz using the interplanetary scintillation method on the Large Phased Array (LPA) in Russia. Due to the large size of the LPA beam (1°x0.5°) a careful inspection of all possible confusion sources was made using extant large radio surveys: 37 of the 48 sources are not confused. We were able to estimate the scintillating flux densities of 13 sources, getting upper limits for the remaining 35. Gathering more or improving extant VLBI data on these sources might significantly improve our results. This proof-of-concept project tells us that compact (<1'') flat spectrum radio sources show strong enough scintillations at 111MHz to establish/constrain their spectra (low-frequency end).

Abstract Copyright: ∼

Journal keyword(s): galaxies: general - galaxies: active - galaxies: quasars: general

Simbad objects: 88

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Number of rows : 88
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 NVSS J004640+315125 Rad 00 46 40.92 +31 51 25.1           ~ 4 1
2 NGC 262 Bla 00 48 47.14147900 +31 57 25.0845702 14.04 13.90 13.06 8.53   ~ 778 2
3 NVSS J011559+520915 Rad 01 15 56.87414 +52 09 13.0342           ~ 7 1
4 NVSS J011755+320622 Rad 01 17 55.09000 +32 06 22.6960           ~ 3 0
5 Z 502-27 rG 01 19 35.00087601 +32 10 50.0619670   16 14.5     ~ 249 1
6 4C 14.06 QSO 01 29 55.34714987 +14 46 47.8365262   20.23 19.90     ~ 59 1
7 4C 72.03 BLL 02 09 51.79040544 +72 29 26.6698973   17.5   20.7   ~ 53 1
8 6C 021803+354230 BLL 02 21 05.4920852208 +35 56 13.848581904   20.0 20.0 19.60   ~ 603 3
9 NVSS J022753+190113 Rad 02 27 53.33470 +19 01 14.0820           ~ 7 1
10 NVSS J023701+434204 Rad 02 37 01.2098 +43 42 04.183           ~ 11 1
11 PMN J0348+0842 Rad 03 48 10.41780 +08 42 08.8730           ~ 8 1
12 6C 035156+390029 QSO 03 55 16.5915056280 +39 09 09.809359488           ~ 18 1
13 NVSS J040212+824135 rG 04 02 12.67711660 +82 41 35.1280121           ~ 17 1
14 NVSS J042051+145916 Rad 04 20 51.084245 +14 59 15.57540           ~ 7 2
15 QSO J0431+1731 BLL 04 31 57.37923719 +17 31 35.7751096       21.3   ~ 54 1
16 PMN J0532+0120 Rad 05 32 08.77600 +01 20 06.3300           ~ 6 1
17 NVSS J063929+354336 Rad 06 39 29.80 +35 43 37.1           ~ 4 1
18 NVSS J063958+353256 Rad 06 39 58.2829 +35 32 56.743           ~ 5 1
19 NVSS J064135+353957 Rad 06 41 35.85425 +35 39 57.6234           ~ 8 1
20 NVSS J064243+353301 Rad 06 42 43.435 +35 32 59.92           ~ 3 1
21 NVSS J064348+352834 Rad 06 43 49.042 +35 28 34.13           ~ 3 1
22 87GB 073259.1+234805 Q? 07 35 59.92066428 +23 41 02.8697195           ~ 13 1
23 NVSS J073752+235244 rG 07 37 52.2692296224 +23 52 44.805486828           ~ 6 1
24 NVSS J082206+075346 Rad 08 22 06.858 +07 53 45.53           ~ 2 1
25 NVSS J082216+705308 Rad 08 22 16.76488 +70 53 07.9785           ~ 9 1
26 PMN J0822+0804 Rad 08 22 33.1537 +08 04 53.523           ~ 6 1
27 FIRST J082250.2+075826 Rad 08 22 52.8 +07 57 40           ~ 2 0
28 NVSS J082323+390629 rG 08 23 23.71403 +39 06 38.5456           ~ 7 1
29 NVSS J082339+081430 Rad 08 23 39.148 +08 14 30.46           ~ 3 1
30 4C 39.23B rG 08 25 23.6790 +39 19 45.707   17.0       ~ 46 1
31 NVSS J082714+390546 Rad 08 27 14.620 +39 05 42.86           ~ 1 0
32 7C 082426.60+353501.00 Bla 08 27 38.58824866 +35 25 05.0779331   21.09 20.77 18.48   ~ 90 1
33 7C 082535.79+353427.00 AG? 08 28 47.9630 +35 24 26.233           ~ 4 1
34 NVSS J083620+552858 Rad 08 36 20.600 +55 28 59.43           ~ 4 1
35 NVSS J083752+554543 Rad 08 37 52.913 +55 45 36.59           ~ 3 1
36 4C 41.19 Rad 09 07 34.149 +41 34 49.19           ~ 23 2
37 6C 090521+420339 Bla 09 08 35.8635727776 +41 50 46.206718512   19.03 18.80 19.1   ~ 72 2
38 8C 0916+718 Bla 09 21 23.94515635 +71 36 12.4022594   18.4 18.7 18.6   ~ 37 1
39 ICRF J100631.7+171317 BLL 10 06 31.76592567 +17 13 17.1103339           ~ 18 1
40 SDSS J100727.78+173354.7 QSO 10 07 27.7849857264 +17 33 54.879636024   20.24 20.04     ~ 18 1
41 NVSS J101206+284243 rG 10 12 06.75656 +28 42 43.5683           ~ 2 1
42 NVSS J101302+282910 Rad 10 13 02.99946 +28 29 10.9620           ~ 13 1
43 7C 101020.69+493334.00 QSO 10 13 29.9328506424 +49 18 40.968485316   19.27 19.10     ~ 68 1
44 RX J1015.0+4926 BLL 10 15 04.1396533776 +49 26 00.706055496   16.56 16.15 14.58   ~ 400 3
45 7C 1058+2430 AG? 11 01 23.51430 +24 14 29.5170           ~ 10 1
46 7C 114300.29+443702.00 BLL 11 45 38.51859906 +44 20 21.9141720   18.79 18.15     ~ 34 1
47 4C 09.39 Bla 11 53 12.5520470448 +09 14 02.276002572   18.26 18.14     ~ 89 1
48 NVSS J121253+330123 Rad 12 12 53.155 +33 01 26.97           ~ 3 1
49 7C 121132.7+332625 QSO 12 14 04.1161319184 +33 09 45.597741480   17.84 17.89     ~ 110 1
50 NGC 4203 LIN 12 15 05.0549203560 +33 11 50.383965120   12.98 11.99     ~ 514 2
51 NVSS J123311+533956 rG 12 33 11.43903 +53 39 54.6802           ~ 4 1
52 NVSS J123341+533723 Rad 12 33 41.854 +53 37 23.99           ~ 3 1
53 NVSS J123513+534906 rG 12 35 13.32269 +53 49 06.4702           ~ 3 1
54 6C 123328+535632 QSO 12 35 48.2287563168 +53 40 04.949735520   20.37 20.13     ~ 26 1
55 NVSS J123634+532541 Rad 12 36 34.840 +53 25 45.55           ~ 4 1
56 NVSS J123702+532528 Rad 12 37 02.307 +53 25 28.77           ~ 3 1
57 NVSS J123750+533338 Rad 12 37 50.645 +53 33 43.34           ~ 4 1
58 9C J1238+5325 Bla 12 38 07.7762081208 +53 25 55.910474904   17.68 17.53 17.7   ~ 62 1
59 NVSS J124310+731600 rG 12 43 11.21710248 +73 15 59.2498613           ~ 35 1
60 NVSS J131820+194647 Rad 13 18 20.01 +19 46 47.1           ~ 1 0
61 NVSS J131952+194135 Rad 13 19 52.07360 +19 41 35.4810           ~ 7 1
62 NVSS J134246+340222 rG 13 42 46.49011 +34 02 24.4816           ~ 3 1
63 6C 134225+341135 QSO 13 44 37.1041280784 +33 55 46.216173288   19.77 19.58     ~ 29 1
64 LEDA 53985 LIN 15 07 21.8815 +10 18 44.988           ~ 20 1
65 87GB 162737.7+212336 QSO 16 29 47.541 +21 17 18.12   19.67 19.31     ~ 11 1
66 NVSS J163011+213134 Rad 16 30 11.23054976 +21 31 34.3081139           ~ 23 1
67 4C 12.60 rG 16 40 47.93882656 +12 20 02.0793087   19.5       ~ 53 1
68 JVAS B1642+054 Rad 16 44 56.174 +05 18 37.03           ~ 2 0
69 NVSS J172149+560750 Rad 17 21 49.647 +56 07 49.82           ~ 3 1
70 7C 172202.60+561407.00 Rad 17 22 57.9 +56 11 24           ~ 3 0
71 ICRF J174648.2+260320 BLL 17 46 48.2793534480 +26 03 20.362096440   17.0       ~ 26 1
72 NVSS J180251+032702 Rad 18 02 51.151 +03 27 02.06           ~ 3 1
73 ICRF J180356.2+034107 Bla 18 03 56.28252156 +03 41 07.6074008   19.5 18.5 17.4   ~ 44 1
74 4C 41.37 Bla 18 14 22.70618455 +41 13 05.6083421     19.60 18.6   ~ 40 1
75 NVSS J185729+630529 Rad 18 57 29.1989603640 +63 05 30.023005164           ~ 9 1
76 NVSS J185948+630436 Rad 18 59 48.786 +63 04 37.33           ~ 4 1
77 WISE J192820.58+681459.3 blu 19 28 20.54599746 +68 14 59.2707990           ~ 16 1
78 NVSS J194736+675016 Rad 19 47 36.2599 +67 50 16.928           ~ 8 1
79 NVSS J210236+663634 Rad 21 02 36.6288736080 +66 36 34.225231500           ~ 8 1
80 NVSS J215145+174307 Rad 21 51 45.12 +17 43 06.6           ~ 3 1
81 QSO B2150+173 BLL 21 52 24.81939266 +17 34 37.7950210     17.9 17.98   ~ 186 2
82 BWE 2150+1226 QSO 21 53 04.6586948448 +12 41 05.200456992   19.82 19.59     ~ 30 1
83 NAME SMM J21536+1741 BiC 21 53 36.82670 +17 41 43.7260     19.58     ~ 49 2
84 QSO B2152+172 QSO 21 54 40.9004785800 +17 27 50.791568040   17.1 18.0 17.3   ~ 27 1
85 Z 403-19 BLL 22 04 17.6521146096 +04 40 02.027503020   16.20 15.2 10.2   ~ 223 2
86 87GB 221052.8+083253 BLL 22 13 21.7359287256 +08 47 29.963647212           ~ 11 1
87 2MASX J22502534+1419519 Sy1 22 50 25.3475290512 +14 19 52.095751140   17.28 16.97 17.243   ~ 210 1
88 NVSS J234736+113517 rG 23 47 36.40620 +11 35 17.8930           ~ 10 1

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