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J/A+A/440/61        FORS spectroscopy of HDFS galaxies       (Rigopoulou+, 2005)

FORS spectroscopy of galaxies in the Hubble Deep Field South. Rigopoulou D., Vacca W.D., Berta S., Franceschini A., Aussel H. <Astron. Astrophys. 440, 61 (2005)> =2005A&A...440...61R
ADC_Keywords: Surveys ; Galaxies, photometry ; Photometry, UBVRIJKLMNH ; Redshifts ; Spectroscopy Keywords: cosmology: observations - surveys - galaxies: luminosity function, mass function - galaxies: starburst Abstract: We present low resolution multi-object spectroscopy of an I-band magnitude limited (IAB∼23-23.5) sample of galaxies located in an area centered on the Hubble Deep Field-South (HDFS). The observations were obtained using the Focal Reducer/low dispersion Spectrograph (FORS) on the ESO Very Large Telescope. Thirty-two primary spectroscopic targets in the HST-WFPC2 HDFS were supplemented with galaxies detected in the Infrared Space Observatory's survey of the HDFS and the ESO Imaging Deep Survey to comprise a sample of 100 galaxies for spectroscopic observations. Based on detections of several emission lines, such as [OII]3727, Hβ and [OIII]5007, or of other spectroscopic features, we measured accurate redshifts for 50 objects in the central HDFS and flanking fields. The redshift range of the current sample of galaxies is 0.6-1.2, with a median redshift of 1.13 (at I∼23.5 not corrected for completeness). The sample is dominated by starburst galaxies with only a small fraction of ellipticals (∼10%). For the emission line objects, the extinction corrected [OII]3727 line strengths yield estimates of star formation rates in the range 0.5-30M/yr. We used the present data to derive the [OII]3727 luminosity function up to redshift of 1.2. When combined with [OII]3727 luminosity densities for the local and high redshift Universe, our results confirm the steep rise in the star formation rate (SFR) to z∼1.3. Description: Table 2 : IDs and photometric data for the spectroscopic targets. For each galaxy coordinates (J2000), IDs and U,B,V,R,I,J,H,K photometry is given. Table 3: spectroscopic redshifts for each target together with the detected emission lines. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 99 94 Identifications and photometry table3.dat 51 100 Spectroscopic redshifts and line detections
See also: J/A+A/379/740 : ESO Imaging Survey (EIS) (Arnouts+, 2001) J/ApJ/548/127 : Hubble Deep Field-South region (Teplitz+ 2001) J/AJ/119/486 : HDF-S: STIS imaging (Gardner+, 2000) J/AJ/120/2747 : HDF-South WFPC2 observations (Casertano+, 2000) J/AJ/122/2190 : HDF-South multicolor observations (Vanzella+, 2001) J/AJ/122/2205 : HDF-South K photometric redshift catalog (Rudnick+, 2001) J/AJ/126/1208 : UVBI magnitudes and redshifts in HDF-South (Sawicki+, 2003) J/ApJ/538/493 : HDF-South NICMOS field (Yahata+, 2000) http://archive.stsci.edu/pub/hdf-south/version1 : WFPC2 flanking fields Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 2 I2 -- Seq Object number 4 A1 --- n_Seq [*] *: two galaxies in slit (1) 6- 7 I2 h RAh Right ascension (J2000.0) 9- 10 I2 min RAm Right ascension (J2000.0) 12- 16 F5.2 s RAs Right ascension (J2000.0) 18 A1 --- DE- Declination sign (J2000.0) 19- 20 I2 deg DEd Declination (J2000.0) 22- 23 I2 arcmin DEm Declination (J2000.0) 25- 28 F4.1 arcsec DEs Declination (J2000.0) 31- 38 A8 --- Name IDs of objects (2) 42- 46 F5.2 mag Umag ? U{AB} magnitude 48- 52 F5.2 mag Bmag ? B{AB} magnitude 54- 58 F5.2 mag Vmag ? V{AB} magnitude 60- 64 F5.2 mag Rmag ? R{AB} magnitude 65 A1 --- u_Rmag [?] Uncertainty flag on Rmag 67- 71 F5.2 mag Imag ? I{AB} magnitude 73- 77 F5.2 mag Jmag ? J{AB} magnitude 79- 83 F5.2 mag Hmag ? H{AB} magnitude 85- 89 F5.2 mag Kmag ? K{AB} magnitude 91- 96 A6 --- HST HST identification (3) 98- 99 I2 --- ISO ? ISO identification (4)
Note (1): Coordinates given from the original sample galaxy. Note (2): Identifications are: BTCnnnnn: identifications correspond to the Big Throughput Camera (BTC, Teplitz et al., 2001 , Cat. J/ApJ/548/127) catalogue EISnnnn: identifications correspond to the ESO-EIS Deep catalogue (da Costa et al., 1998, in prep., astroph/9812105) STAR: stands for star, no photometry is given. Note (3): HST identifications are: Number (nnnn) taken from WFPC2 main catalogue (Casertano et al., 2000 Cat. J/AJ/120/2747, [CDD2000] NNNN in Simbad), Wn-nnn from WFPC2 flanking fields catalogue (http://archive.stsci.edu/pub/hdf-south/version1), ID number and field are reported. Note (4): Identification numbers taken from ISO sources (Aussel et al., 2005, in prep.)
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 2 I2 -- Seq Object number 3 A1 --- m_Seq [ab] Multiplicity index on Seq 5 A1 --- n_Seq [345] Note on Seq (1) 8- 12 F5.3 -- z ? Redshift (2) 13 A1 --- u_z Uncertainty flag on z 14 A1 --- n_z [s)] s for star, ) for literature redshifts (3) 16- 21 A6 -- line Description of emission/absorption line (4) 26- 31 F6.3 mW/m2 [OII] ? [OII] emission line flux 33- 37 F5.3 mW/m2 Hbeta ? Hβ emission line flux 39- 44 F6.3 mW/m2 [OIII] ? [OIII] emission line flux 46- 51 F6.3 solMass/yr SFR([OII]) ? [OII] star formation rates
Note (1): Note on Seq is numbered as follows: 3 = two galaxies in slit 4 = This is a type I AGN (Franceschini et al. 2003A&A...403..501F). From the present observations we have detected CIV 1909 and MgII 2798 lines. 5 = The Hbeta line is very close to a night-sky line. The quoted flux is a "de-blended" one. Hα has also been detected. Note (2): Redshift measured from emission or absorption lines Note (3): Literature redshifts from Rigopoulou et al., 2000ApJ...537L..85R or Franceschini et al., 2003A&A...403..501F Note (4): Description of spectrum use the following abbreviations: em = emission lines detected H+K = absorption features detected cont = continuum detected but no lines f.cont = faint continuum, no lines
Acknowledgements: D. Rigopoulou, dar(at)astro.ox.ac.uk References: da Costa et al., 1998, astroph/9812105 : ESO Imaging Survey. Hubble Deep Field South: Optical-Infrared Observations, Data Reduction and Photometry.
(End) Patricia Vannier [CDS] 12-Jul-2005
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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