EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 494 / No 2 (February I 2009) A&A, 494 2 (2009) 579-589 Full HTML
Free Access
   

Table 4:

Astrometry and optical photometry for the 19 type-1 and type-2 newly discovered quasars in a sub-region of the XMM-LSS field. Column 1 gives the identifier of the source. Columns 2 and 3 provide the right ascension and declination for the equinox 2000, respectively. Column 4 provides the photometric redshift of the source. Columns 5-12 give the 3'' photometry (Vega) and its error for the CFHTLS u*, g', r', i' and z'-bands, respectively.

ID		 RA (J2000) Dec (J2000) Redshift u* $\sigma_{u^*}$ g' $\sigma_{g'}$ r' $\sigma_{r'}$ i' $\sigma_{i'}$ z' $\sigma_{z'}$
  h m s ${^{\circ}}~ ' ~ ''$   (Vega)   (Vega)   (Vega)   (Vega)   (Vega)  
2 2 22 42.54 -4 30 18.49 1.110 21.371 0.020 21.304 0.020 20.540 0.013 20.527 0.014 20.326 0.018
3 2 22 42.92 -4 33 14.64 1.513 20.511 0.013 20.995 0.013 20.445 0.013 20.113 0.011 19.822 0.012
17 2 22 58.89 -4 58 52.41 0.710 19.693 0.009 20.006 0.009 19.217 0.007 18.790 0.006 18.376 0.005
19 2 23 04.15 -4 44 35.40 2.262 20.355 0.011 20.656 0.011 20.138 0.010 19.710 0.009 19.323 0.009
20 2 23 06.05 -4 33 23.93 0.910 20.381 0.011 20.693 0.011 20.292 0.012 20.156 0.011 19.779 0.012
27 2 23 25.63 -4 22 54.00 1.574 22.246 0.032 22.426 0.032 21.360 0.021 21.147 0.021 20.756 0.026
33 2 23 36.87 -4 30 51.84 1.679 23.928 0.093 23.817 0.093 22.509 0.044 21.181 0.021 20.479 0.020
37 2 23 40.78 -4 22 55.38 0.910 19.666 0.009 19.818 0.009 19.188 0.007 19.085 0.007 18.717 0.006
45 2 23 50.77 -4 31 58.25 1.158 19.731 0.010 19.922 0.010 19.200 0.006 18.810 0.006 18.660 0.006
2S 2 23 52.18 -4 30 31.81 2.113 19.679 0.012 19.975 0.012 19.514 0.007 19.149 0.007 18.859 0.007
47 2 23 52.54 -4 18 21.65 2.361 20.712 0.014 20.750 0.014 20.125 0.010 19.747 0.010 19.309 0.009
57 2 24 16.65 -4 56 43.02 1.481 21.270 0.019 21.381 0.019 20.663 0.014 20.373 0.013 19.965 0.014
1S 2 24 24.17 -4 32 29.85 1.901 18.842 0.006 19.207 0.006 18.841 0.005 18.449 0.005 18.318 0.005
78 2 25 15.34 -4 40 08.86 2.295 19.712 0.009 19.966 0.009 19.554 0.009 19.140 0.007 19.017 0.008
80 2 25 34.82 -4 24 01.69 0.910 20.595 0.014 20.985 0.014 20.524 0.012 20.233 0.012 19.767 0.013
81 2 25 37.16 -4 21 32.85 0.974 19.541 0.009 19.694 0.009 19.130 0.006 18.981 0.006 18.740 0.007
83 2 25 37.55 -4 54 40.29 2.445 21.448 0.021 21.111 0.021 20.115 0.017 19.586 0.010 19.324 0.011
84 2 25 39.36 -4 22 28.02 1.007 21.025 0.017 21.390 0.017 20.816 0.014 20.486 0.014 19.948 0.014
85 2 25 55.43 -4 39 18.16 0.948 20.769 0.015 21.027 0.015 20.371 0.011 20.166 0.012 19.806 0.012
Notes on individual objects: objects 1S and 2S are the quasars found among the point-like sources, using the SWIRE color-diagram. A third object found in the same way (see text for more details) coincides with the 2dF quasar #23 (see Table 3). Object $\char93 $33 is the only QSO with typical SED features of a type-2 object. Due to the lack of spectroscopic information, the objects presented in this table were characterized as type-1 quasars based on their SED. For objects 2,3, 20 and 27 we have recently obtained VIMOS spectra, which have indeed confirmed the SED classification. The measured spectroscopic redshift is 1.165, 1.900, 1.085 and 2.148 respectively.

Source LaTeX | All tables | In the text

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.