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Contents of the TKRS Tables
The TKRS tables list the data resulting from the Team Keck Redshift
Survey of the GOODS-North region imaged by HST/ACS. Two
versions of the tables are provided, one ordered by serial number
and one by Right Ascension. The contents of the two tables are
identical and are described below.
Columns in the TKRS Tables
| Column |
Name |
Data Type |
Units |
Description |
| 1 |
id |
integer |
|
Object serial number in TKRS catalog |
| 2 |
ra |
double |
hours |
Right Ascension (J2000) |
| 3 |
dec |
double |
degrees |
Declination (J2000) |
| 4 |
rmag |
real |
mag |
SExtractor "total" magnitude |
| 5 |
mask |
integer |
|
TKRS slitmask number on which object appears |
| 6 |
slit |
integer |
|
Slit number in whcih object appears on slitmask |
| 7 |
z |
real |
|
TKRS redshift |
| 8 |
zq |
integer |
|
TKRS redshift quality code, explained below |
| 9 |
z_alt |
real |
|
Alternate redshift |
| 10 |
z_ref |
integer |
|
Reference for alternate redshift, explained below |
| 11 |
x |
real |
px |
X position on TKRS DEIMOS R-band mosaic image |
| 12 |
y |
real |
px |
Y position on TKRS DEIMOS R-band mosaic image |
| 13 |
field |
integer |
|
sector number in which object lies in HST/ACS imaging
mosaic |
| 14 |
x_acs |
real |
px |
X position on HST/ACS sector image |
| 15 |
y_acs |
real |
px |
Y position on HST/ACS sector image |
| 16 |
sma |
real |
arcsec |
Semi-major axis length in TKRS DEIMOS R-band mosaic
image |
| 17 |
e2 |
real |
|
Ellipticity in TKRS DEIMOS R-band mosaic image |
| 18 |
pa |
r |
degrees |
Major axis position angle in DEIMOS R-band mosaic image
(North=0, East=+90) |
| 19 |
id2 |
string |
|
Object name in HST/ACS GOODS-North v1.0 catalog |
TKRS Redshift Quality Codes (parameter zq)
| Value |
Meaning |
| 4 |
Very secure redshift, with at least a 99% probability of
being correct. At least two spectral features were
identified. |
| 3 |
Secure redshift, with at least a 95% probability of
being correct. Spectrum features one strong line and
another weak but identifiable feature, or a single
wide line, typically [O II] 3727 blend. |
| 2 |
Uncertain redshift; signal is present but no unambiguous
spectral line identified. This spectrum may yield a
redshift in subsequent analysis. |
| 1 |
No redshift; S/N too poor. |
| -1 |
Star. |
| -2 |
No redshift measured because of instrumental artifacts
in spectrum |
References for Alternate Redshifts (parameter z_ref)
| Value |
Meaning |
| 1 |
Cowie, L. L., et al. 2004, AJ, submitted, astro-ph/0401354 |
|
| 2 |
Cohen,
J., et al. 1996, ApJ, 471, 5 |
| 3 |
Cohen, J., et al. 2000, ApJ, 538, 29 |
| 8 |
Cohen, J., 2001, AJ, 121, 2895 |
| 9 |
Phillips, A., et al. 1997, ApJ, 489, 543 and
Lowenthal, J., et al. 1997, ApJ, 481, L673 |
| 11 |
Dawson, S., et al. 2001, AJ, 122, 598 |
| 12 |
Steidel, C., et al. 2003, ApJ, 592, 728 and
Steidel, C., et al. 1999, ApJ, 519, 1 |
| 15 |
Dickinson, M. 1998, in The Hubble Deep Field,
ed. M. Livio, S. M. Fall, \& P. Madau (New York: Cambridge
Univ. Press), 219
|
| 17 |
Zepf,
S. E., Moustakas, L. A., & Davis, M. 1997, ApJ, 474, L1 and
Moustakas (private communication, data available at
this http URL) |
| 18 |
Cowie, L. L., Songaila, A., Hu, E. M. &
Cohen, J. G. 1996, AJ, 112, 839
, data available at
this http url |
| 19 |
Bunker, A. J., Stern, D., Spinrad, H., Dey, A., Steidel, C. C.
1998, BAAS, 192, 7008
|
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