Table 1
Journal of GTC imaging observations and sample.
| Target | Alt. name | RA (J2000) | Dec (J2000) | Date | Filter | T (s) | Seeing | z | K | R−K |
|
|
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| 5C 6.17 | B2 0206+34 | 02h09m20.0s | +34d28m35s | 4/9/2010 | g | 1900 | 0.7′′–0.8′′ | (1.05) | 20.36 ± 0.07 | >4.5 |
| 4/9/2010 | r | 540 | 0.7′′–0.8′′ | |||||||
| 5C 6.62 | B2 0210+32 | 02h13m27.1s | +33d08m03s | 4/9/2010 | g | 1900 | 0.7′′–0.8′′ | (1.45) | 19.99 ± 0.08 | 4.9 ± 0.5 |
| 5C 6.83 | B2 0211+30B | 02h14m06.7s | +30d53m49s | 5/9/2010 | g | 1900 | 0.8′′–0.9′′ | (1.8) | 20.22 ± 0.08 | >4.6 |
| 5/9/2010 | r | 360 | 0.8′′–0.9′′ | |||||||
| 5C 6.242 | B2 0218+31 | 02h21m14.4s | +31d17m06s | 5/9/2010 | g | 1900 | 0.8′′–0.9′′ | (1.9) | 20.70 ± 0.10 | >5.8 |
| 5/9/2010 | r | 360 | 0.8′′–0.9′′ | |||||||
| 5C 7.47 | B2 0812+24 | 08h25m59.2s | +25d53m00s | 28/2/2011 | u | 816 | 1.1′′–1.3′′ | (1.7) | 21.44 ± 0.10 | 2.4 ± 0.2 |
| 28/2/2011 | g | 800 | 1.1′′–1.3′′ | |||||||
| 5C 7.208 | B2 0820+25 | 08h23m17.9s | +24d56m40s | 28/2/2011 | g | 800 | 1.0′′ | (2.0) | 20.03 ± 0.08 | 4.0 ± 0.2 |
| 5C 7.245 | B2 0822+26 | 08h25m57.0s | +26d43m58s | 28/2/2011 | g | 800 | 1.0′′ | 1.609 | 20.09 ± 0.08 | >4.3 |
Notes. The magnitudes colours are from Table 1 of W01 and were measured by those authors in 3′′ apertures. They are in the AB system. Redshifts shown in parentheses are tentative values from W01, based on fitting twelve simple stellar populations to their R through K broad-band SEDs, or in the case of 5C 6.62, on their tentative detection of a single emission line thought to be Hα. The firm redshift determination for 5C 7.245 comes from Humphrey et al. (2015), who detected four emission lines at z = 1.609, confirming the tentative detection of Hα at z = 1.61 reported by W01.
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