J/A+AS/143/303 Ultra steep spectrum radio sources catalog (De Breuck+ 2000)

J/A+AS/143/303/notes.dat Individual notes (90 records)

Name (m)
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Note
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WN J0043+4719 The source 18" north of the NVSS position is not detected in
WN J0043+4719 the NVSS. This is therefore not a real USS source because the
WN J0043+4719 NVSS flux density was underestimated.
WN J0048+4137 Our VLA map probably doesn't go deep enough to detect all the
WN J0048+4137 flux of this source.
WN J0727+3020 The higher resolution FIRST map shows that both components of
WN J0727+3020 this object are indeed identified on the POSS, even though the
WN J0727+3020 NVSS position is too far off to satisfy our identification
WN J0727+3020 criterion.
WN J0717+4611 Optical and near-IR spectroscopy revealed this object as a red
WN J0717+4611 quasar at z=1.462 (De Breuck et al., 1998AJ....116...13D).
WN J0725+4123 The extended POSS identification suggest this source is
WN J0725+4123 located in a galaxy cluster.
WN J0829+3834 The NVSS position of this unresolved source is 7" (3{sigma})
WN J0829+3834 from the FIRST position, which itself is only at 2" from the
WN J0829+3834 WENSS position.
WN J0850+4830 The difference with the NVSS position indicates that our VLA
WN J0850+4830 observations are not deep enough to detect a probable
WN J0850+4830 north-eastern component.
WN J0901+6547 This 38" large source is over-resolved in our VLA
WN J0901+6547 observations, and probably even misses flux in the NVSS, and
WN J0901+6547 is therefore not a real USS source.
WN J1012+3334 The bend morphology and bright optical sources to the east
WN J1012+3334 indicate this object is probably located in a galaxy cluster.
WN J1101+3520 The faint FIRST component 20" north of the brighter Southern
WN J1101+3520 component is not listed in the FIRST catalog, but is within
WN J1101+3520 1" of a faint optical object. This might be the core
WN J1101+3520 of a 70" triple source.
WN J1152+3732 The distorted radio morphology and bright, extended POSS
WN J1152+3732 identification suggest this source is located in a
WN J1152+3732 galaxy cluster.
WN J1232+4621 This optically identified and diffuse radio source suggest
WN J1232+4621 this source is located in a galaxy cluster.
WN J1314+3515 The diffuse radio source appears marginally detected on the
WN J1314+3515 POSS.
WN J1329+3046 A,Band WN J1330+3037, WN J1332+3009 & WN J1333+3037 : The noise
WN J1329+3046 A,Bin the FIRST image is almost ten times higher than average due
WN J1329+3046 A,Bto the proximity of the S1400=15Jy source 3C 286.
WN J1330+3037 See WN J1329+3046A,B
WN J1332+3009 See WN J1329+3046A,B
WN J1333+3037 See WN J1329+3046A,B
WN J1330+5344 The difference with the NVSS position indicates that our VLA
WN J1330+5344 observations are not deep enough to detect a probable
WN J1330+5344 south-eastern component.
WN J1335+3222 Although the source appears much like the hotspot of a larger
WN J1335+3222 source with the core 90" to the east, no other hotspot is
WN J1335+3222 detected in the FIRST within 5'.
WN J1359+7446 The extended POSS identification suggests this source is
WN J1359+7446 located in a galaxy cluster.
WN J1440+3707 The equally bright galaxy 30" south of the POSS identification
WN J1440+3707 suggests that this source is located in a galaxy cluster.
WN J1509+5905 The difference with the NVSS position indicates that our VLA
WN J1509+5905 observations are not deep enough to detect a probable western
WN J1509+5905 component.
WN J1628+3932 This is the well studied galaxy NGC 6166 in the galaxy cluster
WN J1628+3932 Abell 2199 (e.g. Zabludoff et al., 1993, Cat. <J/AJ/106/1273>)
WN J1509+5905 The difference with the NVSS position indicates that our VLA
WN J1509+5905 observations are not deep enough to detect a probable
WN J1509+5905 west-south-western component.
WN J1821+3601 The source 35" south-west of the NVSS position is not detected
WN J1821+3601 in the NVSS. This is therefore not a real USS source because
WN J1821+3601 the NVSS flux density was underestimated.
WN J1832+5354 The source 19" north-east of the NVSS position is not detected
WN J1832+5354 in the NVSS. This is therefore not a real USS source because
WN J1832+5354 the NVSS flux density was underestimated.
WN J1852+5711 The extended POSS identification suggests this source is
WN J1852+5711 located in a galaxy cluster.
WN J2313+3842 The extended POSS identification suggests this source is
WN J2313+3842 located in a galaxy cluster.
TN J0233+2349 This is probably the north-western hotspot of a 35" source,
TN J0233+2349 with the south-eastern component barely detected in our
TN J0233+2349 VLA map.
TN J0309-2425 We have classified. this source as a 13" double, but the
TN J0309-2425 western component might also be the core of a 45" source, with
TN J0309-2425 the other hotspot around RA=3h9m10s, DE=-24{deg}25'50".
TN J0349-1207 The core-dominated structure is reminiscent of the
TN J0349-1207 red quasar WN J0717+4611.
TN J0352-0355 This is probably the south-western hotspot of a 30" source.
TN J0837-1053 Given the 10" difference between the positions of the NVSS and
TN J0837-1053 diffuse VLA source, this is probably the northern component
TN J0837-1053 of a larger source.
TN J0408-2418 This is the z=2.44 source MRC 0406244 (McCarthy et al., 1996,
TN J0408-2418 Cat. <J/ApJS/107/19>). The bright object on the POSS is a
TN J0408-2418 foreground star to the north-east of the R=22.7 galaxy.
TN J0443-1212 Using the higher resolution VLA image, we can identify this
TN J0443-1212 radio source with a faint object on the POSS.
TN J2106-2405 This is the z=2.491 source MRC 2104-242 (McCarthy et al.,
TN J2106-2405 1996, Cat. <J/ApJS/107/19>). The identification is an R=22.7
TN J2106-2405 object, not the star to the north-north-west of the
TN J2106-2405 NVSS position.