Decametric (UTR) Survey of discrete sources in the northern sky: OCR+proof+merge by H.Andernach, part V prepared by Natalia Zabavskaja; part XI from K.P.Sokolov, 3/93 Note: part VII has two entries for GRB1454-05, part XI has two sources GRB0354+47; these were appended with suffix A and B, in increasing R.A.(1950) The first two bytes indicate the survey part in which the source was published (roman numbers translated to latin numbers); 9604 entries for 1754 sources EXAMPLE: part GR Bname RA_50 +-s Dec_50 +-d f/MHz S/Jy +-% N NRA sp.ind+- W ID ID_radio ----+-----1-----+---2----+----3----+----4----+----5----+----6----+----7----+----8----+ 0123456789012345678901234567890123456789012345678901234567890123456789012345678901234 2GRB0002+12 000217 6 +12.63 0.03 16.7* 96 4 .89 .26 A G PKS0002+12 000216 41 +12.81 0.36 12.6 85 65 7 2 000234 20 +12.81 0.15 14.7 111 12 11 2 000221 9 +12.75 0.13 16.7 93 11 20 2 000218 9 +12.78 0.06 20.0 82 13 24 3 000203 11 +12.61 0.02 25.0 67 19 23 3 2GRB0003+15 000324 15 +15.92 0.02 B Q 4C15.01 000416 36 +15.84 0.07 16.7 < 17 8 2 ....................................... 5GRB0003-00 000356 15 -00.28 0.03 16.7* 44 25 -0.97 1.08 B Q 3C2 000420 58 -00.42 0.21 14.7 < 77 000330 18 -00.34 0.10 16.7 48 30 ==========================================================================
The authors have mistakenly repeated Figure 4a instead of Figure 4c in Paper II. Here the mistake is remedied by giving Figure 4b for Figure 4c of Paper II.
The circle centre is a source from the GR catalogue. As follows from Figure 5, no source from other catalogues falls within the R = 0.65d circle. This allows us to assume a 0.99 probability for the GR source shown in the figure to be a new one.
As mentioned above, the majority of the sources were identified by the 4C catalogue. The sources not listed in the 4C catalogue were compared with those of other high frequency catalogues and have been partly identified. A total of 44 objects have been identified. Figure 6 gives the most characteristic sources of this group. Apparently, all these objects have been identified with a high degree of certainty. The following are examples of identification.
GR 0138+07 (Fig. 6a). Identified with the source 4CP+07.05A at 178 MHz. The identification is confirmed by the data of the NAIC and Ohio III surveys at 611 and 1415 MHz, respectively.
GR 0226+07 (Fig. 6b). Identified with NAIC 0226+07. Has not been detected in the Ohio survey at 1415 MHz because of the steep spectrum. The spectral index in the decametre wave-band is 1.78.
GR 0241+03 (Fig. 6c). Identified with NAIC 0242+02. The identification is confirmed by the data of the Ohio 111 survey.
GR 0436+06 (Fig. 6d). Identified with NAIC 0436+06 and confirmed in the Ohio 111 survey as OF 062.
GR 0550+08 (Fig. 6e). Identified with a source of the Cambridge survey at 38 MHz, viz. WKB 052.
GR 0805+04 (Fig. 6f). Identified with NAIC 0805+04 and confirmed in the Ohio VI survey.
Apart from the new sources reliably identified with the 4C and other catalogues, there were sources which could not be identified with known objects as there were two sources.
GR 0014+06. One can see in Figure 7a that three sources from the NAIC catalogue (0014+05, 0014+06 and 0015+06 with respective fluxes 0.43, 0.409 and 0.631 Jy at 611 MHz) and MSH 00+003 with a flux 18 Jy at 85 MHz fall within the circle. The NAIC 0015+06 source has been confirmed in Ohio III as OB 024, that survey sensitivity being 0.18 Jy. The source flux is 0.32 Jy at 1415 MHz. The MSH 00+003 source has not been confirmed by the NAIC survey whose sensitivity is 0.35 Jy at 611 MHz. Hence, the source GR 0014+06 may coincide either with OB 024 or with MSH 00+003, in the latter case it should possess a steep spectrum. But the spectral index of GR 0014+06 at decametric wavelengths (S ~ v-alpha) is 0.29. Therefore the probability of GR 0014+06 and MSH 00+003 representing the same object is low.
GR 0145+00. It follows from Figure 7b that the sources NAIC 0144-01 and 0148-00 with fluxes 0.367 and 0.354 Jy get inside the circle. The GR 0145-00 source is probably related to both objects.
GR 0311+07. It follows from Figure 7c that two sources from the NAIC catalogue, viz. 0311+0756 and 0311+0707, get within the circle, which are not confirmed in the Ohio surveys. Therefore, no identification is possible.
GR 0333+01. Figure 7d shows two NAIC sources within the circle, viz. 0332+01 and 0334+01, both confirmed in the Ohio III survey as OE 055 and OE 058. Identification with one of them is not possible with the data available.
GR 0405+07. It follows from Figure 7e that two sources from the NAIC survey (0404+07 and 0405+07 with respective fluxes 0.437 and 0.558 Jy) are within the circle. The source NAIC 0404+07 is confirmed in the Ohio III survey (OF 008, flux 0.3 Jy). Besides, there is another source within the circle, viz. OF 010 with a flux of 0.4 Jy, which is not confirmed in the NAIC survey, probably because of its flat spectrum. This kind of source could not be detected with the UTR-2. The GR 0405+07 might be a sum of the NAIC 0404+07 and 0405+07 sources.
GR 0454+04. As follows from Figure 7f, there are three sources from the NA1C survey which fall within the circle, viz. 0454+03, 0455+04 and 0456+04 with fluxes of 0.37, 0.66 and 0.70 Jy, respectively. The source 0454+03 has been confirmed in the Parkes survey at 408 MHz, i.e., PKS 0454+039, and in Ohio III at 1415 MHz, i.e., OF 092. Judging by the position and fluxes of the sources, there is a probability that GR 0454+04 is a sum of the two objects.
GR 0456+08. Figure 8a shows two sources within the circle, viz. NAIC 0456+08 and 0455+09 with fluxes 0.43 and 0.38 Jy. The sources have not been detected in the Ohio survey. Their position and fluxes lead to a belief that the flux of the GR 0456+08 is a sum of the two.
GR 0501+05. As follows from Figure 8b, there are the sources NAIC 0500+06 and 0502+05, approximately equally separated from the GR source. The Ohio surveys do not contain these sources. No positive identification is possible here.
GR 0516+03. Figure 8c shows three NAIC sources within the circle, viz. 0516+03, 0516+0325 and 0516+0312 with fluxes of 0.3, 0.995 and 0.57 Jy. The sources 0516+0312 and 0516+0325 have been confirmed in the Ohio III survey as OG 026 and OG 028. The 0516+03 source has not been found in the Ohio survey. The data available do not allow certain identification.
GR 0541+07. The circle of Figure 8d contains the source NAIC 0539+07 with a flux of 0.37 Jy not observed in Ohio, apparently because of a steep spectrum, and two sources from the Ohio III catalogue, viz. OG 065 and OG 069 with fluxes 0.33 and 0.3 Jy. The latter sources were not observed in the NAIC survey, probably due to their flat spectra. Therefore, the GR 0541+07 source is probably related to NAIC 0539+07.
GR 0542-01. It follows from Figure 8e that within the circle are NAIC 0542-01 and 0543-01 (fluxes 0.46 and 0.485 Jy) not observed in the Ohio survey, possibly because the spectra are too steep. There are also sources from Ohio III (OG 069, flux 0.49 Jy) and Parkes (PKS 0542-01, flux 0.4 Jy at 1400 MHz). None of the objects has been observed at 611 MHz, therefore the flux of GR 0542-01 is possibly a sum of the fluxes of NAIC 0542-01 and 0543-01.
GR 0545+02. According to Figure 8f, there are two sources within the circle, viz. NAIC 0544+02 and 0546+02 with fluxes of 0.43 and 0.49 Jy. No identification is possible.
GR 0613+07. Figure 9a shows within the circle around the Grakovo source the Ohio VI sources OH 023 and OH 024 with fluxes of 0.33 and 0.2 Jy. The OH 023 source has been confirmed in the NAIC survey where at 611 MHz the flux was 0.96 Jy. If the absence in the NAIC of the OH 024 source is due to its flat spectrum, then it should not be observable with the UTR-2. In this case GR 0613+07 can be identified with OH 023.
GR 0646-01. Figure 9b shows three sources within the circle, viz. NAIC 0644-01, NAIC 0647-01 and NAIC 0648-01 with fluxes 0.46, 0.89 and 0.4 Jy. It follows from the figure that GR 0646-01 is possibly related to all the three sources.
GR 0655+02. Figure 9c shows the circle to include two sources of the NAIC catalogue, viz. 0654+02 and 0655+02 with fluxes 0.47 and 0.79 Jy, the former absent from the Ohio survey, probably due to its steep spectrum, and the latter is confirmed in Ohio VI. Apparently, the flux of GR 0655+02 is a sum of the NAIC 0655+02 and NAIC 0654+02 fluxes.
GR 0705+02. Figure 9d shows two NAIC sources within the circle, viz. 0705+0231 and 0705+0202 with fluxes 1.218 and 0.36 Jy. The first source coincides with OI 069 of the Ohio catalogue, the other has not been confirmed by that catalogue. The GR 0705+02 flux is probably a sum of the two sources.
GR 0755+03. Figure 9e shows three sources inside the circle, viz. NAIC 0754+03, NAIC 0755+02 and NAIC 0756+03 with fluxes of 0.39, 1.4 and 0.4 Jy. These sources are absent from the Ohio survey. The GR 0755+03 flux is probably a sum of the three.
GR 0757+08. The circle in Figure 9f has four sources inside, viz. NAIC 0755+08, NAIC 0756+08, NAIC 0757+08 and NAIC 0759+08 with fluxes 0.78, 0.62, 0.95 and 0.5 Jy, respectively. The sources NAIC 0755+08 and 0757+08 were confirmed in the Ohio VI survey as OI 092 and OI 096 with fluxes 0.44 and 0.35 Jy. The other two sources were not detected at 1415MHz, probably because their spectra are too steep. It is possible that the GR 0757+08 flux is determined by the nearest Iying sources (R~0.15d) NAIC 0756+08 and 0757+08.
GR 0817-01. Figure lea shows two sources inside the circle, viz. NAIC 0816-02 with a flux of 0.68 Jy (confirmed in the Parkes survey at 1410 MHz as PKS815-02 with a flux of 0.4 Jy), and Ohio VI OI030 with a flux of 0.28 Jy. The OI030 source was not detected at 611MHz (NAIC), therefore GR 0817-01 possibly coincides with NAIC 0816-02.
GR 0838+03. According to Figure lob, there are four sources inside the circle, viz. NAIC 0837+03, 0838+0328, 0838+0310 and Ohio VI OI+063 with fluxes 0.63,0.57 and 0.45 Jy at 611 MHz, and 0.39 Jy at 1415 MHZ. The NAIC sources are absent from the Ohio survey possibly due to their steep spectra. The OI+063 source <===========??? was not detected in the NAIC survey possibly due to the negative curvature of the spectrum. It is probable that the GR 0838+03 flux is mainly a sum of the fluxes of rather close sources (R ~ 0.2d),viz. NAIC 0837+03 and NAIC 0838+0328.
GR 0859-01. The circle in Figure lOc has two sources inside, viz. NAIC 0859-01 and 0901-01 with equal fluxes of 0.36 Jy, the NAIC 0901-01 source being confirmed in the Ohio VI survey as OK003 with a flux of 0.16 Jy. The flux of GR 0859-01 should evidently be viewed as a sum of the fluxes from NAIC 0859-01 and NAIC 0901-01.
GR 0900+07. The following sources are inside the circle in Figure led, viz. NAIC 0900+08 and 0901+07 with fluxes of 0.45 and 0.64 Jy, and Ohio VI OK 001 with a flux of 0.3 Jy. The sources have been detected in only one survey. GR 0900+07 might be related to the NAIC sources but both of them are near the boundary of the circle which makes identification with one of them impossible.
GR 0912+02. As follows from Figure lee, two NAIC sources, viz. 0912+03 and 0912+02 (fluxes 0.7 and 0.77 Jy) are within the circle. The first one is confirmed in the Ohio VI survey as OK 020 with a flux of 0.42 Jy and the other is absent from Ohio VI, which indicates a steep spectrum. It is very close to GR 0912+02 (R ~ 0.2d). It might be probable that the two sources represent the same object.
GR 0929+07. Figure lOf shows the following sources inside the circle: NAIC 0930+07 and 0931+07 with fluxes 0.54 and 0.72 Jy, and OK 052 from the Ohio survey with a flux of 0.23 Jy. The sources of the NAIC survey were not detected in Ohio, apparently due to steep spectra. The OK 052 source is absent from the NAIC survey, possibly due to a negative curvature of its spectrum. It is therefore probable that the GR 0929+07 flux is a sum of the NATC 0930+07 and NAIC 0931+07 fluxes.
GR1021+02. Figure lla shows two sources, viz. NAIC 1020+02 and NAIC 1021+02, inside the circle (fluxes 0.65 and 0.716 Jy). The latter source has been confirmed in the Ohio VI survey as O1 036 with a flux of 0.32 Jy. The GR 1021+02 source flux apparently is a sum of both NAIC fluxes.
GR 1027+03. Figure llb shows two sources within the circle, viz. NAIC 1025+04 and 1028+03 with fluxes of 0.49 and 0.36 Jy. The fluxes and the positions of the sources suggest that GR 1027+03 is a sum of these sources.
GR 1030+08. Figure I Ic has three sources inside the circle: NAIC 1028+09 (flux 0.556 Jy) confirmed in the Ohio VI survey as OL 047 (flux 0.32 Jy) and in Parkes as PKS 1028+09 at 408 MHz (flux 1.6 Jy). The second source, i.e., NAIC 1031+08 with a flux of 0.4 Jy, is confirmed in Ohio VI as OL+051.9, the third one, an Ohio VI source OL 053 (flux 0.23 Jy), was not detected at either 408 or 611 MHz, apparently due to a flat spectrum. Hence, the GR 1030+08 flux is a sum of the NAIC 1028+09 and NAIC 1031+08 fluxes.
GR 1114+08. It follows from Figure l Id that the sources NAIC 1112+08 (flux 0.45 Jy) and Ohio VI OH 021 (flux 0.24 Jy) are inside the circle. Each of the sources has been observed in only one of the surveys. This means that the OH 021 spectrum might be flat while that of NAIC 1112+08 is steep. Hence, GR 1114+08 and NAIC 1112+08 represent the same object.
GR 1155-01. The circle in Figure 11e has two sources inside: OM 095 (flux 0.17 Jy, a limit value for the Ohio VI survey), not confirmed at lower frequencies, and MSH 11-018 with a flux of 16Jy at 85 MHz. This source can be identified with GR 1155-01.
GR 1349+07. According to Figure l If the following sources are within the circle: 4CP+07.33 (flux 2.4 Jy at 178 MHz) confirmed in the Ohio VI survey as OP 081 with a flux of 0.3 Jy, and OP+082.1 with a flux of 0.21 Jy. The latter source was not observed at lower frequencies. Therefore, GR 1349+07 should be considered as identified with 4CP+07.33.
GR 1350+06. Figure 12a shows two sources within the circle. The source OP 086 (flux 0.18 Jy) from the Ohio VI catalogue (maximum sensitivity of the survey) has not been confirmed at lower frequencies. The other source is MSH 13+011 with a flux of 54 Jy at 85 MHz. Taking into account that the spectral index of GR 1350+06 is, according to the data obtained on the UTR-2 radio-telescope, it = 1.83, the sources MSH 13+011 and GR 1350+06 should be considered identical.
GR 1445+06. Figure 12b shows two Ohio VI sources inside the circle, viz. OQ 076 and OQ+073.5 with fluxes of 0.23 and 0.32 Jy. The data available do not allow these sources to be identified with GR 1445+06.
GR 1545+07. Figure 12c shows two Ohio III sources within the circle: 4CP+07.41A with a flux of 3.7 Jy at 178 MHz and OR 076 with a flux of 1.48 Jy. The latter has not been detected at lower frequencies, but one should not exclude the possibility that, despite the difference in coordinates (RADEC=154549+073806 for 4CP+07.41A, and 0C =154547+0750 for OR 076), the two sources actually represent the same object which can be identified with GR 1545+07.
GR 1748-01. Figure 12d shows three sources inside the circle, viz. MSH 17-012 with a flux of 53 Jy at 85 MHz, confirmed in the Ohio VII survey as OT-080.1 <========== has 0.8 mJy in Dixon! (flux 0.4 Jy), and OT-078.8 and OT-081.4 with fluxes of 0.3 and 0.4 Jy. The latter have not been observed at lower frequencies. Thus, the sources GR 1748-01 and MSH 17-012 may be considered as the same object.
GR 2333+05. According to Figure 12e, within the circle lies the source OZ 057 from the Ohio survey with a flux of 0.38 Jy. The NAIC survey shows three nearby sources, viz. 2334+0527, 2333+0502 and 2334+0502 with fluxes of 0.65, 0.45 and 0.35 Jy. The flux of GR 2333+05 possibly is a sum of the fluxes of the three NAIC objects.