J/AJ/117/102 Photometry + Spectroscopy in HDF + Flanking Fields (Barger+, 1999)
Constraints on the early formation of field elliptical galaxies.
Barger A.J., Cowie L.L., Trentham N., Fulton E., Hu E.M., Songaila A.,
Hall D.
<Astron. J., 117, 102-110 (1999)>
=1999AJ....117..102B 1999AJ....117..102B
ADC_Keywords: Galaxies, photometry ; Redshifts ; Photometry, infrared
Keywords: cosmology: observations; galaxies: evolution; galaxies: photometry
Abstract: We present the results of an HK' wide-field survey encompassing
the Hubble Deep Field and its flanking fields. Our wide-field survey
provides uniform coverage of a 61.8arcmin2 area to a depth equivalent
to K=20.1 at 5σ. We have also imaged the Hubble Deep Field in
HK', providing uniform coverage of a 7.8arcmin2 area to a depth
equivalent to K=21.2 at 5σ. Using these data in combination
with new deep University of Hawaii 8K V- and I-imaging obtained on
the Canada-France-Hawaii Telescope, we find only a small population
of objects with colors redder than an equivalent I-K=4mag, the color
expected for an evolved elliptical galaxy at z>1. We infer that only
a fraction of the local field elliptical galaxy population with
MK←23.4 could have formed in single bursts at high redshift.
The HK' observations of the HDF and its flanking fields were made with
the University of Hawaii 2.2m telescope (1996-02-06 to 1996-02-08 for
the HDF, and 1997-04-17 to 1997-04-22 for the wider area) and the 3.6m
Canada-France-Hawaii Telescope (CFHT, 1996-04-05 to 1996-04-08 for the
HDF). The deep V- and I-band observations were made with the CFHT
(1997-04-03 to 1997-04-08), and B-band observations with the Keck Low
Resolution Imaging Spectrograph in a strip across the center of the HK
wide-field image.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
cowie.dat 90 184 Results in the HDF
hff_cat.dat 76 2579 Results in the HDF flanking fields
--------------------------------------------------------------------------------
See also:
http://www.ifa.hawaii.edu/~cowie/tts/tts.html : Hawaii Active Catalog
of the Hubble Deep Field
http://www.ifa.hawaii.edu/users/cowie/hdflank/hdflank.html : Hawaii
Observations oF the HDF Flanking Fields
J/ApJS/122/109 : Galaxy structural parameters (Takamiya+, 1999)
J/ApJ/513/34 : HDF photometric redshifts catalog (Fernandez-Soto+, 1999)
J/A+A/364/517 : HDF-N spiral and irregular galaxies (Rodighiero+, 2000)
J/ApJ/538/29 : HDF-N Caltech faint galaxy redshift survey. X. (Cohen+, 2000)
J/AJ/119/2571 : UBVRI photometry of HDF QSOs and galaxies (Vanden Berk+, 2000)
J/ApJ/533/611 : 1.4GHz survey in HDF region (Richards+, 2000)
J/AJ/121/2895 : HDF-N Caltech faint galaxy redshift survey. XIII. (Cohen 2001)
J/AJ/122/598 : HDF-North serendipitously galaxies (Dawson+, 2001)
J/ApJ/551/111 : HDF early-type and spiral galaxies (Ellis+, 2001)
J/ApJ/554/742 : Chandra Deep Survey of the HDF-N (Hornschemeier+, 2001)
J/ApJ/596/748 : IR Observations in HDF-North (Thompson+, 2003)
J/MNRAS/344/887 : Sub-mm observations of HDF and Flanking Fields
(Serjeant+, 2003)
J/AJ/127/180 : The Hawaii Hubble Deep Field North (Capak+, 2004)
J/MNRAS/358/1159 : Radio sources in HDF and HFF (Muxlow+, 2005)
J/ApJ/634/128 : 16µm imaging around the HDF-N (Teplitz+, 2005)
J/A+A/472/805 : Radio-X-ray sources in the HDF(N) region. (Richards+, 2007)
Byte-by-byte Description of file: cowie.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- Cowie Galaxy number, COWIE NNN in Simbad
7- 8 I2 h RAh Right Ascension J2000 (hours) (HK' image)
10- 11 I2 min RAm Right Ascension J2000 (minutes) (HK' image)
13- 17 F5.2 s RAs Right Ascension J2000 (seconds) (HK' image)
20 A1 --- DE- Declination J2000 (sign) (HK' image)
21- 22 I2 deg DEd Declination J2000 (degrees) (HK' image)
24- 25 I2 arcmin DEm Declination J2000 (minutes) (HK' image)
27- 31 F5.2 arcsec DEs Declination J2000 (seconds) (HK' image)
36- 39 F4.1 mag HK'mag Aperture corrected 2.1um magnitude (1)
42- 45 F4.1 mag Jmag Johnson J magnitude (1)
48- 51 F4.1 mag Imag Kron-Cousins I-band magnitude (8140Å)
54- 57 F4.1 mag Vmag Johnson V-band magnitude (6020Å)
60- 63 F4.1 mag Bmag ?=**** Johnson B-band magnitude (4500Å)
66- 69 F4.1 mag UVmag ?=**** Ultraviolet magnitude (3000Å)
74- 79 F6.3 --- z(sp) Spectroscopic redshift (2)
82- 87 F6.3 --- z(6) Photometric redshift (3)
90 I1 --- RSE [0,2]? RSE type (0=ell,1=spiral,2=Irr)
--------------------------------------------------------------------------------
Note (1): Magnitudes are measured in 3 arcsecond diameter apertures and
corrected to 6 arcsecond diameters with an average offset for that
color. The zero points for the bands are Johnson K, J, V(6020) and
B(4500), Kron Cousins I(8140) and AB for UV(3000).
Note (2): Spectrosopic redshifts z(sp) are all from the Hawaii and Caltech
samples except for objects with z>2.4 where the values are from
Steidel et al. (1996AJ....112..352S 1996AJ....112..352S). Peculiar values are:
0.00=unidentified object, -1.00=unobserved object, and -2=star.
Note (3): z(6) is an SED-estimated redshift from the 6 colors.
The peculiar value z=-3 means that there are two distinct objects
corresponding to the K image and no SED redshift can be obtained
using the six color estimator.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: hff_cat.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- HDFFF Galaxy number, HDFFF MMSSs-MMSS in Simbad (3)
13- 14 I2 h RAh Right Ascension J2000 (hours)
16- 17 I2 min RAm Right Ascension J2000 (minutes)
19- 23 F5.2 s RAs Right Ascension J2000 (seconds)
25 A1 --- DE- Declination J2000 (sign)
26- 27 I2 deg DEd Declination J2000 (degrees)
29- 30 I2 arcmin DEm Declination J2000 (minutes)
32- 35 F4.1 arcsec DEs Declination J2000 (seconds)
39 A1 --- l_HK'mag [>] Indicates an upper limit in HK' brightness
40- 44 F5.2 mag HK'mag Aperture corrected 2.1um magnitude (1)
47- 51 F5.2 mag Imag Kron-Cousins I magnitude (1)
53 A1 --- l_Imag [>] Indicates an upper limit in I brightness
54- 58 F5.2 mag Vmag Johnson V magnitude (1)
60 A1 --- l_Vmag [>] Indicates an upper limit in V brightness
61- 65 F5.2 mag Bmag ?=0.0 Johnson B magnitude (1)
68- 73 F6.3 --- z ?=0.0 Spectroscopic redshift (4)
76 I1 --- r_z Source of redshift (2)
--------------------------------------------------------------------------------
Note (1): All magnitudes are computed in 3arcsec diameter apertures and
corrected to 6arcsec magnitudes using a median offset. HK' magnitudes
are described in Wainscoat and Cowie (1992AJ....103..332W 1992AJ....103..332W).
The conversion to conventional K magnitudes are:
* for galaxies (almost irrespective of redshift): K = HK' - 0.3.
* for stars: K = HK' - 0.13 - 0.05(I-K).
Note (2): Sources are numbered as follows:
1 = Steidel et al., 1998AJ....115.1418H 1998AJ....115.1418H
2 = Cohen et al., 1996ApJ...471L...5C 1996ApJ...471L...5C
3 = Lowenthal et al., 1997ApJ...481..673L 1997ApJ...481..673L
4 = Redshift from spectrum of the Hawaii group (see
http://www.ifa.hawaii.edu/users/cowie/hdf_2000_spectra.fits.gz)
5 = Hogg et al., 1996AJ....112..352S 1996AJ....112..352S
Note (3): The name is composed of the minutes, seconds and tenth in RA,
and the minutes and seconds in declination.
Note (4): Peculiar values are:
0.00=unidentified object, -1.00=unobserved object, and -2=star.
--------------------------------------------------------------------------------
History:
From http://www.ifa.hawaii.edu/users/cowie and
http://www.ifa.hawaii.edu/~cowie/tts/
(End) Francois Ochsenbein [CDS] 11-Sep-2008