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J/ApJ/658/865   Redshifts of galaxies in X-ray-luminous groups  (Jeltema+, 2007)

The evolution of galaxies in X-ray-luminous groups. Jeltema T.E., Mulchaey J.S., Lubin L.M., Fassnacht C.D. <Astrophys. J., 658, 865-883 (2007)> =2007ApJ...658..865J
ADC_Keywords: Clusters, galaxy ; X-ray sources ; Redshifts Keywords: galaxies: clusters: general - X-rays: galaxies: clusters Abstract: We investigate the galaxy populations in seven X-ray-selected, intermediate-redshift groups (0.2<z<0.6). Overall, the galaxy populations in these systems are similar to those in clusters at the same redshift; they have large fractions of early-type galaxies (fe∼70%) and small fractions of galaxies with significant star formation (f∼30%). Description: We observed five groups (RX J1205.9+4429, RX J1256.0+2556, RX J1334.0+3750, RX J1347.9+0752, RX J1648.7+6019) with GMOS on Gemini-North during 2005 May 11-13, while two groups, RX J0329.0+0256 and RX J0720.8+7109, were observed with LRIS on Keck I during 2004 December 5-6. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 154 326 Spectroscopic catalog
See also: J/ApJ/646/133 : Redshifts in X-ray-selected groups of galaxies (Mulchaey+ 2006) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 2 I2 h RAh Hour of Right Ascension (J2000) (1) 4- 5 I2 min RAm Minute of Right Ascension (J2000) (1) 7- 11 F5.2 s RAs Second of Right Ascension (J2000) (1) 13 A1 --- DE- Sign of Declination (J2000) (1) 14- 15 I2 deg DEd Degree of Declination (J2000) (1) 17- 18 I2 arcmin DEm Arcminute of Declination (J2000) (1) 20- 23 F4.1 arcsec DEs Arcsecond of Declination (J2000) (1) 25- 31 F7.5 --- z Redshift 33- 39 E7.1 --- e_z Error in z 41 A1 --- r_z [GKP] Telescope used for redshift (2) 43- 47 F5.2 mag Rmag ? The R band magnitude 49 A1 --- f_Rmag [1] Combined R magnitude (3) 51- 54 F4.2 mag e_Rmag ? Error in Rmag 56- 68 A13 --- Morph HST morphology 70 A1 --- Type [EL-] Early/Late type classification (4) 72-154 A83 --- Com Comments on the morphology
Note (1): Galaxies identified as [JML2007] in Simbad. Note (2): Telescope code as follows: G = Gemini K = Keck P = Palomar Note (3): As our groundbased data does not have high enough spatial resolution to separate out the three components, this magnitude is the total for all three components when the flag is set to 1. Note (4): Taken from the HST imaging where available and the Gemini imaging otherwise.
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 23-Jan-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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