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## (from tabmap V6.0 (2016-08-18)) 2024-05-18T13:29:47
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#-- J/MNRAS/355/20 K magnitudes of 74MHz radio sources (Jarvis+, 2004)
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#---Table: J/MNRAS/355/20/./notes.dat Individual notes (119 records)
# Name A12 --- Source name
# Note A76 --- Text of the note
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Name |Note
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J1225.0+2146|This source is double-lobed, with an extended K-band ID towards
J1225.0+2146| the western lobe. There are two plausible candidates for the ID,
J1225.0+2146| which may be interacting, at RA=12:25:02.40, DE=21:46:52.6
J1225.0+2146| with K=20.12, and RA=12:25:02.51, DE=21:46:54.5 with K=20.20. The
J1225.0+2146| entry in Table 2 is the magnitude for the westernmost ID. There
J1225.0+2146| is also a faint infrared source at the centre of the western lobe
J1225.0+2146| (RA=12:25:02.14, DE=21:46:50.6), with a K-band magnitude K>21;
J1225.0+2146| this is unlikely to be the ID but could be enhanced emission due
J1225.0+2146| to the passage of the radio jet.
J1226.3+2418|This is a large radio source with a secure ID at the centre of the
J1226.3+2418| brightest radio emission.
J1228.9+3114|This source has a slightly extended radio morphology centred at
J1228.9+3114| RA=12:28:59.58, DE=+31:14:57.6. There is a bright K-band
J1228.9+3114| counterpart to the north-east of this centroid at RA=12:28:59.56,
J1228.9+3114| DE=+31:15:01.1, which may be the host galaxy. However, this is
J1228.9+3114| not centred on the bright radio emission, and it is possible that
J1228.9+3114| a true ID centred on the radio emission may be beyond the
J1228.9+3114| detection limit of our imaging observations at K>20.7 in a
J1228.9+3114| 3-arcsec aperture (3{sigma}).
J1229.1+3040|This source is slightly extended in the radio map. We have a total
J1229.1+3040| of 3240s integration with UKIRT on this source with no apparent
J1229.1+3040| ID down to a limiting 3{sigma} total magnitude of K=20.7 in a
J1229.1+3040| 3-arcsec aperture.
J1229.9+3712|The radio morphology for this source is such that it could be the
J1229.9+3712| lobe of a larger source. Indeed, inspection of the FIRST radio
J1229.9+3712| maps does show three aligned components with a probable core at
J1229.9+3712| RA=12:30:02.98, DE=37:12:46.1. The full extent of this radio
J1229.9+3712| source on the sky is ~3 arcmin. The FIRST radio map overplotted
J1229.9+3712| on the Digitized Sky Survey R-band image is shown in Fig. 2.
J1229.9+3712| There is no bright ID detected in the POSS-II image at the
J1229.9+3712| position of the core.
J1230.2+2326|This source has a double-lobed radio morphology with a bright
J1230.2+2326| K-band ID situated between them, along the radio axis.
J1230.6+3247|This is an extended radio source with two K-band counterparts
J1230.6+3247| close to both of the bright radio components. This could be two
J1230.6+3247| distinct sources with both of the two infrared objects hosting
J1230.6+3247| an AGN (marked A and B in Fig. 1). We note that the peak centroid
J1230.6+3247| of the 74-MHz radio map is centred closer to the south-western
J1230.6+3247| component with the fainter K-band ID at RA=12:30:37.96,
J1230.6+3247| DE=+32:47:18.2 (referred to as J1230.6+3247A), and we consider
J1230.6+3247| this to be the most likely near-infrared counterpart.
J1231.2+2538|This is a compact radio structure with a faint K-band ID at its
J1231.2+2538| centre.
J1231.3+3724|This is a compact radio source with a faint K-band ID at its centre
J1231.5+3236|This source has a very extended radio morphology with a K-band ID
J1231.5+3236| at its centre. There also seems to be an overdensity of radio
J1231.5+3236| sources close to the radio source, possibly indicative of a
J1231.5+3236| cluster.
J1232.2+2814|This is another compact radio source with a faint K-band ID at its
J1232.2+2814| centre.
J1232.6+3157|This is a small but extended radio morphology with two bright
J1232.6+3157| K-band counterparts towards each of the extended components. This
J1232.6+3157| could be a superposition of two sources or one radio source with
J1232.6+3157| two plausible IDs, or alternatively it could be lensed.
J1232.6+3157| Spectroscopy will be needed to distinguish between these
J1232.6+3157| possibilities. The K-band magnitudes of both the northern object
J1232.6+3157| (J1232.6+3157N) and southern object (J1232.6+3157S) are given in
J1232.6+3157| Tables 2 and 3. Given the similarity in K-band magnitude, the
J1232.6+3157| distribution in K-band magnitude of this sample is not affected
J1232.6+3157| significantly by choosing one counterpart over the other for
J1232.6+3157| this radio source.
J1234.3+2605|This is a double-lobed radio source with a plausible K-band ID
J1234.3+2605| towards the eastern lobe. There is also a fainter K-band source
J1234.3+2605| at the centre of the eastern lobe at RA=12:34:24.12,
J1234.3+2605| DE=26:05:51.4. Both are within 1.5-arcsec of the centre of the
J1234.3+2605| radio lobe and either could be the ID. We assume for this paper
J1234.3+2605| that the brighter source is the ID, as it lies along the radio
J1234.3+2605| axis.
J1238.2+2613|This is a compact radio source with a K-band ID at its centre.
J1238.8+3559|This is a double-lobed radio source with a bright K-band source at
J1238.8+3559| the centre of the radio structure, which we take to be the ID.
J1238.8+3559| There are also two further K-band sources stretching along the
J1238.8+3559| western lobe, which could be due to jet-induced star formation,
J1238.8+3559| although spectroscopy will be needed to confirm that these
J1238.8+3559| objects are at the same redshift as the radio source.
J1243.7+2830|This is a compact radio structure with a K-band ID at its centre.
J1243.7+2830| There is also another K-band source of similar magnitude that may
J1243.7+2830| be interacting with this central galaxy 1.3-arcsec to the
J1243.7+2830| north-east.
J1245.9+3320|This is a slightly extended radio source with a faint K-band ID
J1245.9+3320| at its centre.
J1246.4+2516|This is a compact radio source with a faint K-band ID in the centre
J1248.2+2747|This source has a slightly extended radio morphology with a fairly
J1248.2+2747| bright K-band ID close to (~1-arcsec away from) the centre.
J1249.0+3615|This is an extended radio source with a bright K-band ID at the
J1249.0+3615| centre of the brightest point in the radio emission, which we
J1249.0+3615| take to be the core. This galaxy has a very close possible
J1249.0+3615| companion ~1-arcsec to the north with which it may be interacting.
J1249.0+3615| The 74MHz centroid for this source is ~12arcsec to the north of
J1249.0+3615| the core position quoted here. This may be because the 74-MHz
J1249.0+3615| emission arises from a more extended, optically thin lobe.
J1249.7+3408|This is a compact radio source with a very faint K-band ID at the
J1249.7+3408| centre. There are also three fainter sources in the immediate
J1249.7+3408| vicinity (<6-arcsec away) of the ID, which may be associated with
J1249.7+3408| an overdensity of galaxies at high redshift (the K-band magnitude
J1249.7+3408| of this source means that it is likely to be at z>4).
J1250.4+2941|This source is a highly extended double-lobed radio source in the
J1250.4+2941| eastwest direction. There is a bright ID at the centre of the
J1250.4+2941| source, with a line of three fainter sources aligned along the
J1250.4+2941| western lobe. This is highly unlikely to be a chance alignment,
J1250.4+2941| and therefore these three sources may be due to gas compression
J1250.4+2941| by the jet causing increased star formation, or could be due to
J1250.4+2941| a preferred orientation of galaxy overdensities with respect to
J1250.4+2941| the jet axis. Spectroscopy will be needed to confirm whether
J1250.4+2941| these are actually at the same redshift as the radio source.
J1252.7+2207|This is a fairly compact source with a K-band ID near its centre.
J1252.7+2207| The astrometry on this image is only good to ~1.5-arcsec;
J1252.7+2207| therefore it is very plausible that the ID is actually at the
J1252.7+2207| centre of the radio centroid.
J1253.4+2703|This source has a very unusual morphology in the radio, and in
J1253.4+2703| Cohen et al. (2004, Cat. <J/ApJS/150/417>) we suggested that it
J1253.4+2703| could be a cluster relic. There is a bright K-band source near
J1253.4+2703| the centre of the radio emission, but spectroscopy will be needed
J1253.4+2703| to confirm whether this is associated with the radio emission.
J1253.6+2509|This is a double-lobed radio source with a K-band ID centred on
J1253.6+2509| the northernmost extent of the southern lobe, along the axis of
J1253.6+2509| the radio emission.
J1256.9+2811|This is a compact source with a very faint K-band ID consistent
J1256.9+2811| with being at its centre.
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