Access to Astronomical Catalogues

← Click to display the menu
J/ApJ/497/188      A103, A118 and A114 morphological studies (Couch+ 1998)

Morphological studies of the galaxy populations in distant ``Butcher-Oemler'' clusters with the Hubble Space Telescope. II. AC 103, AC 118, and AC 114 at z = 0.31. Couch W.J., Barger A.J., Smail I., Ellis R.S., Sharples R.M. <Astrophys. J. 497, 188 (1998)> =1998ApJ...497..188C (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Photometry ; Equivalent widths ; Morphology Mission_Name: HST Keywords: galaxies: clusters: individual (AC 103, AC 114, AC 118) - galaxies: evolution - galaxies: interactions - galaxies: structure Abstract: We present the results of a program to study the detailed morphologies of galaxies in intermediate-redshift clusters and hence understand the physical origin of the enhanced star formation seen in the environments at earlier epochs. Deep, high-resolution imagery has been obtained of three rich clusters, AC 103, AC 118 and AC 114 at z=0.31, through the R (F702W) filter of the Wide Field Planetary Camera (WFPC2) of the Hubble Space Telescope (HST). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 110 131 New spectroscopic results table4.dat 97 738 Morphological classifications for AC 103, AC 118, and AC 114
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 6 A6 --- Cluster Cluster name 9- 11 A3 --- Tel Telescope (1) 13- 18 A6 --- Inst Instrument (2) 20- 25 A6 --- HST HST number (3) 28- 30 I3 --- CN84 ? Couch & Newell (1984ApJS...56..143C) number 31 A1 --- m_CN84 Multiplicity index on CN84 33- 35 I3 --- BAE96 ? Barger et al. (1996MNRAS.279....1B) number 37- 38 I2 h RAh Right ascension (1950) 40- 41 I2 min RAm Right ascension (1950) 43- 46 F4.1 s RAs Right ascension (1950) 48 A1 --- DE- Declination sign 49- 50 I2 deg DEd Declination (1950) 52- 53 I2 arcmin DEm Declination (1950) 55- 58 F4.1 arcsec DEs Declination (1950) 60- 64 F5.2 mag Rmag ? R magnitude 66- 70 F5.2 mag K'mag ? K' magnitude 72- 75 F4.2 mag B-R B-R (or U-i if n_B-R=a) colour index 76 A1 --- n_B-R [a] a: U-I colour index from BAE96 in B-R column 78- 83 F6.4 --- z Redshift 84 A1 --- u_z Uncertainty flag on z (4) 86- 89 F4.1 0.1nm EW(3727) ? Equivalent width of [O II] λ3727 emission line 91- 93 F3.1 0.1nm e_EW(3727) ? rms uncertainty on EW(3727) 95- 97 F3.1 0.1nm EW(Hd) ? Equivalent width of Hδ absorption line 99-101 F3.1 0.1nm e_EW(Hd) ? rms uncertainty on EW(Hd) 103-110 A8 --- SpType Spectral type (5)
Note (1): AAT: Anglo-Austalian Telescope NTT: New Technology Telescope Note (2): LDSS-1: Low Dispersion Survey Spectrograph on AAT EMMI: European Multi-Mode Imager/Spectrograph on NTT Note (3): Identity number of each object in SExtractor catalog derived from our WFPC2 images. The absence of entry indicates that the object lies outside the WFPC2 field. Note (4): The presence of a colon denotes that the measurement is based on just one line emission, assumed in all cases to be [O II] λ3727. Note (5): Psv(pec): galaxies whose spectra have all the same characteristics as the passive types but whose colors are marginally bluer.
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 6 A6 --- Cluster Cluster name 8- 15 A8 --- HST HST number 17- 19 I3 --- CN84 ? Couch & Newell (1984ApJS...56..143C) number 20 A1 --- m_CN84 Multiplicity index on CN84 22- 27 F6.1 pix xpos X coordinate from HST 29- 34 F6.1 pix ypos Y coordinate from HST 36- 41 F6.3 mag R702 R (F702W filter) magnitude 43- 50 A8 --- Mtype Hubble type 52- 53 I2 --- MDS Classifications on the numerical scheme devised by Glazebrook et al. (1995MNRAS.275L..19G) (1) 55- 63 A9 --- Status Int/Merg/Sat (2) 64- 97 A34 --- Com Comments
Note (1): 0= E 1= E/S0 2= S0 3= Sa-Sb 4= S 5= Sc-Sdm 6= Irr 7= unclassified object 8= galaxy merger -1= same "compact" morphology as found here Note (2): I or i: interactive M or m: merger T or t: tidal evidence Sat: galaxies with faint satellites
History: From the ApJ electronic version References: Couch et al., Paper I. 1994ApJ...430..121C
(End) James Marcout, Patricia Bauer [CDS] 22-Jun-1998
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

catalogue service

© UDS/CNRS

Contact