Search in Xamin or Browse... |
PDSOID2 - Phoenix Deep Survey Optical and Near-Infrared Counterparts Catalog 2 |
HEASARC Archive |
Two pointings (labeled 7 and 3 in Table 1 of the reference paper) were observed in BVRi, and one (pointing 11 in ibid.) in BVi on the nights of 2001 August 13 and 14, with the WFI camera on the Anglo-Australian Telescope (AAT). The same three pointings were also observed in U with the Mosaic-II camera on the Cerro Tololo Inter-American Observatory (CTIO) 4-m Blanco telescope on 2002 September 3. Finally, four of the PDS fields (2, 3, 6, 7) were observed in U with the WFI on the European Southern Observatory (ESO) 2.2-m telescope on the night of 2001 August 18.
The NIR imaging data come from the Hawaii HgCdTe 1024 x 1024 pixel array SoFI camera on the 3.6-m ESO New Technology Telescope (NTT). The field of view was 4.9' x 4.9' with a pixel scale of 0.29". Nine contiguous pointings, in a 3 x 3 pattern, were observed over the deepest region of the PDS (a sub-region of pointing 7; see Fig. 1 of the reference paper), during 2000 October 10 and October 11.
Throughout this study, the authors assume an OmegaLambda = 0.7, OmegaM = 0.3, h = 0.70 (where H0 = 100 h km s-1 Mpc-1) cosmology.
The Phoenix Deep Survey: optical and near-infrared imaging catalogs. Sullivan M., Hopkins A.M., Afonso J., Georgakakis A., Chan B., Cram L.E., Mobasher B., Almeida C. <Astrophys. J. Suppl. Ser., 155, 1-13 (2004)> =2004ApJS..155....1S The Phoenix Deep Survey: The 1.4 GHz microJansky catalog. Hopkins A.M., Afonso J., Chan B., Cram L.E., Georgakakis A., Mobasher B. <Astron. J., 125, 465-477 (2003)> =2003AJ....125..465H
Name
The Phoenix Deep Survey J2000.0 positional-based source designation, viz.
'PDF JHHMMSS.S+DDMMSS', where the prefix stands for Phoenix Deep Field and is
recommended by the CDS Dictionary of Astronomical Nomenclature in place of
the 'PDS' prefix used in the as-published table. The HEASARC notes that the
names and positions in this table (from the Sullivan et al. 2004 reference
paper) differ slightly from those given in the catalog of radio sources
(Hopkins et al. 2003). The reasons for this are not known to the HEASARC: one
possibility is that the names and positions in this table are based on the
positions of the optical/near-infrared counterparts rather than on the
positions of the radio sources themselves.
RA
The Right Ascension of the source in the selected equinox.
This was created by the HEASARC based on the J2000.0 position-based name
given herein which has a precision of 0.1 seconds of time.
Dec
The Declination of the source in the selected equinox.
This was created by the HEASARC based on the J2000.0 position-based name
given herein which has a precision of 1 arcsecond.
LII
The Galactic Longitude of the source.
BII
The Galactic Latitude of the source.
Umag_Limit
This limit flag is set to '>' if the source was not
detected in this particular band, specifically, if the net flux at the
source position was negative. The corresponding quoted magnitude in such
cases is the formal 5-sigma limit.
Umag
The U-band magnitude of the optical/NIR counterpart to the radio
source..
Umag_Error
The uncertainty in the U-band magnitude of the optical/NIR
counterpart to the radio source.
Umag_Flag
This flag parameter is set to '1' if the quoted corresponding
magnitude was for a detection at a level below the 5-sigma detection threshold
in this particular band.
Bmag_Limit
This limit flag is set to '>' if the source was not
detected in this particular band, specifically, if the net flux at the
source position was negative. The corresponding quoted magnitude in such
cases is the formal 5-sigma limit.
Bmag
The B-band magnitude of the optical/NIR counterpart to the radio
source.
Bmag_Error
The uncertainty in the B-band magnitude of the optical/NIR
counterpart to the radio source.
Bmag_Flag
This flag parameter is set to '1' if the quoted corresponding
magnitude was for a detection at a level below the 5-sigma detection threshold
in this particular band.
Vmag_Limit
This limit flag is set to '>' if the source was not
detected in this particular band, specifically, if the net flux at the
source position was negative. The corresponding quoted magnitude in such
cases is the formal 5-sigma limit
Vmag
The V-band magnitude of the optical/NIR counterpart to the radio
source.
Vmag_Error
The uncertainty in the V-band magnitude of the optical/NIR
counterpart to the radio source.
Vmag_Flag
This flag parameter is set to '1' if the quoted corresponding
magnitude was for a detection at a level below the 5-sigma detection threshold
in this particular band.
Rmag_Limit
This limit flag is set to '>' if the source was not
detected in this particular band, specifically, if the net flux at the
source position was negative. The corresponding quoted magnitude in such
cases is the formal 5-sigma limit
Rmag
The Cousins R-band magnitude Rc of the optical/NIR counterpart to
the radio source.
Rmag_Error
The uncertainty in the Cousins R-band magnitude of the
optical/NIR counterpart to the radio source.
Rmag_Flag
This flag parameter is set to '1' if the quoted corresponding
magnitude was for a detection at a level below the 5-sigma detection threshold
in this particular band.
Imag_Limit
This limit flag is set to '>' if the source was not
detected in this particular band, specifically, if the net flux at the
source position was negative. The corresponding quoted magnitude in such
cases is the formal 5-sigma limit
Imag
The Cousins I-band magnitude of the optical/NIR counterpart to the
radio source. The i-band data, however, were actually obtained through an SDSS
i-band filter and not a Cousins-I filter (Ic), and a non-negligible color
term was required to align these data into the Ic system of the standard
stars. The authors found that to convert their measured CCD photometry with
this filter, iCCD, to the standard Cousins system (Ic) required a
transformation of the form Ic = iCCD - 0.194 * (Rc - Ic),
where iCCD is the calibrated i-band magnitude with no color term applied and
Rc is the calibrated Rc-band magnitude.
Imag_Error
The uncertainty in the Cousins I-band magnitude of the
optical/NIR counterpart to the radio source.
Imag_Flag
This flag parameter is set to '1' if the quoted corresponding
magnitude was for a detection at a level below the 5-sigma detection threshold
in this particular band.
Ks_Mag_Limit
This limit flag is set to '>' if the source was not
detected in this particular band, specifically, if the net flux at the
source position was negative. The corresponding quoted magnitude in such
cases is the formal 5-sigma limit
Ks_Mag
The K-band magnitude, Ks, of the optical/NIR counterpart to the
radio source.
Ks_Mag_Error
The uncertainty in the K-band magnitude of the optical/NIR
counterpart to the radio source.
Ks_Mag_Flag
This flag parameter is set to '1' if the quoted corresponding
magnitude was for a detection at a level below the 5-sigma detection threshold
in this particular band.
Redshift
The spectroscopic redshift of the
optical/NIR counterpart to the radio source.
Phot_Redshift
The photometric redshift of the
optical/NIR counterpart to the radio source. See Section 4 of the reference
paper for the details of the photometric redshift analysis.
Phot_Redshift_Error
The uncertainty in the photometric redshift of the
optical/NIR counterpart to the radio source.