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J/ApJ/665/921    Redshift survey in the field of A1689       (Frye+, 2007)

The Sextet Arcs: a strongly lensed Lyman break galaxy in the ACS spectroscopic galaxy survey toward Abell 1689. Frye B.L., Coe D., Bowen D.V., Benitez N., Broadhurst T., Guhathakurta P., Illingworth G., Menanteau F., Sharon K., Lupton R., Meylan G., Zekser K., Meurer G., Hurley M. <Astrophys. J., 665, 921-935 (2007)> =2007ApJ...665..921F
ADC_Keywords: Clusters, galaxy ; Redshifts ; Photometry, HST Keywords: galaxies: clusters: general - galaxies: clusters: individual (A1689) - galaxies: high-redshift - gravitational lensing - methods: data analysis - techniques: spectroscopic Abstract: We present results of the HST Advanced Camera for Surveys spectroscopic ground-based redshift survey in the field of A1689. We measure 98 redshifts, increasing the number of spectroscopically confirmed objects sixfold. We present two spectra from this catalog of the Sextet Arcs, images that arise from a strongly lensed Lyman break galaxy (LBG) at a redshift of z=3.038. Gravitational lensing by the cluster magnifies its flux by a factor of ∼16 and produces six separate images with a total r-band magnitude of r625=21.7. The two spectra, each of which represents emission from different regions of the LBG, show HI and interstellar metal absorption lines at the systemic redshift. Description: Abell 1689 was observed in 2002 June as part of HST ACS GTO time. Deep exposures were taken in the g475, r625, i775, and z850 passbands, reaching limiting magnitudes of 27.5, 27.2, 27.2, and 26.7, respectively. The U-band image was acquired from the DuPont Telescope at Las Campanas. The B-band image was acquired from the Nordic Optical Telescope (NOT) at La Palma. Broadband V, R, and I images and a narrowband Z-band image taken with the NB9148 filter were obtained in 1999 March with the Low Resolution Imaging Spectrometer (LRIS) on Keck II. J, H, and Ks images were obtained with Son of Isaac (SOFI) on the ESO New Technology Telescope (NTT). A complementary Ks-band Infrared Spectrometer and Array Camera (ISAAC) VLT image was also analyzed. Spectroscopic observations were carried out at the Keck Observatory, the Very Large Telescope (VLT), and the Las Campanas Magellan-Clay Observatory. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 91 15 Objects at z>2.5 in the A1689 Field table3.dat 76 91 Spectroscopic identification of z<2.5 objects toward A1689
See also: J/A+A/382/60 : BVR photometry in Abell 1689 (Duc+, 2002) J/MNRAS/335/10 : Hα survey of Abell 1689 (Balogh+, 2002) J/ApJ/621/53 : Multiple arc systems in A1689 (Broadhurst+, 2005) J/MNRAS/372/1425 : Abell 1689 gravitational lensing analysis (Halkola+, 2006) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 2 I2 h RAh Right ascension (J2000.0) 4- 5 I2 min RAm Right ascension (J2000.0) 7- 12 F6.3 s RAs Right ascension (J2000.0) 14 A1 --- DE- Declination sign (J2000.0) 15- 16 I2 deg DEd Declination (J2000.0) 18- 19 I2 arcmin DEm Declination (J2000.0) 21- 25 F5.2 arcsec DEs Declination (J2000.0) 27- 29 F3.1 --- [BBC2005] ? Broadhurst et al. (2005, J/ApJ/621/53) name (1) 31- 35 F5.3 --- zsp ? Spectroccopic redshift 37- 41 F5.3 --- e_zsp ? rms uncertainty on zsp 42 A1 --- r_zsp [abcd] Redshift reference (2) 44- 47 F4.2 --- zph Bayesian photometric redshift 49- 52 F4.2 --- E_zph ? Error on zph (upper limit) 54- 57 F4.2 --- e_zph ? Error on zph (lower limit) 59 A1 --- l_g475 Limit flag on g475 60- 64 F5.2 mag g475 ? g475 magnitude 66- 69 F4.2 mag e_g475 ? rms uncertainty on g475 71- 75 F5.2 mag r625 ? r625 magnitude 77- 80 F4.2 mag e_r625 ? rms uncertainty on r625 82- 86 F5.2 mag i775 ? i775 magnitude 88- 91 F4.2 mag e_i775 ? rms uncertainty on i775
Note (1): Sources 1.1-1.6 comprise the Sextet, and sources 2.1-2.5 comprise the Quintet. Note (2): References as follows: b = Broadhurst et al. (2005, Cat. J/ApJ/621/53) c = Frye et al. (2002ApJ...568..558F) d = This paper
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 2 I2 h RAh Right ascension (J2000.0) 4- 5 I2 min RAm Right ascension (J2000.0) 7- 12 F6.3 s RAs Right ascension (J2000.0) 14 A1 --- DE- Declination sign (J2000.0) 15- 16 I2 deg DEd Declination (J2000.0) 18- 19 I2 arcmin DEm Declination (J2000.0) 21- 25 F5.2 arcsec DEs Declination (J2000.0) 27- 31 F5.3 --- zspec ? Spectroccopic redshift 33- 37 F5.2 mag Imag ?=- I magnitude, in AB system 39- 42 F4.2 mag e_Imag ?=- rms uncertainty on Imag 44- 47 F4.2 --- zph ?=- Bayesian photometric redshift 49- 52 F4.2 --- E_zph ?=- Error on zph (upper limit) 54- 57 F4.2 --- e_zph ?=- Error on zph (lower limit) 59- 66 A8 --- Date Observation date 68- 76 A9 --- Tel Telescospe used
Nomeclature note: Sources identified as [FCB2007] JHHMMSS.sss+DDMMSS.ss in Simbad. History: From electronic version of the journal
(End) Patricia Vannier [CDS] 05-Sep-2009
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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