J/AJ/130/445 X-ray-luminous galaxy cluster RX J0142.0+2131 (Barr+, 2005) ================================================================================ RX J0142.0+2131. I. The galaxy content of an X-ray-luminous galaxy cluster at z=0.28. Barr J., Davies R., Jorgensen I., Bergmann M., Crampton D. =2005AJ....130..445B ================================================================================ ADC_Keywords: Clusters, galaxy ; Photometry, SDSS ; X-ray sources Keywords: galaxies: clusters: individual (RX J0142.0+2131) - galaxies: evolution - galaxies: stellar content Abstract: We present a photometric and spectroscopic study of stellar populations in the X-ray-luminous cluster of galaxies RX J0142.0+2131 at z=0.280. This paper analyzes the results of high signal-to-noise ratio spectroscopy, as well as g'-, r'-, and i'-band imaging, using the Gemini Multi-Object Spectrograph on Gemini North. Description: Imaging and spectroscopy of RX J0142.0+2131 were obtained with the Gemini Multi-Object Spectrograph on Gemini North (GMOS-N) in semester 2001B as part of the GMOS-N System Verification program, GN-2001B-SV-51. Observations were made within the period UT 2001 October 20 to November 18. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table7.dat 56 43 Photometric properties of the spectroscopic sample table8.dat 46 43 Results from the template fitting table9.dat 173 42 Line indices (excluding the M star) -------------------------------------------------------------------------------- See also: J/A+A/406/535 : Hamburg/RASS Cat. of optical ident. V3.0 (Zickgraf+, 2003) J/ApJS/129/435 : NORAS galaxy cluster survey. I. (Bohringer+, 2000) J/MNRAS/318/333 : Extended ROSAT Bright Cluster Sample (Ebeling+ 2000) Byte-by-byte Description of file: table7.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 4 I4 --- [BDJ2005] Identification number 6 I1 h RAh Hour of Right Ascension (J2000) (1) 8- 9 I2 min RAm Minute of Right Ascension (J2000) (1) 11- 15 F5.2 s RAs Second of Right Ascension (J2000) (1) 16 A1 --- DE- Sign of the Declination (J2000) (1) 17- 18 I2 deg DEd Degree of Declination (J2000) (1) 20- 21 I2 arcmin DEm Arcminute of Declination (J2000) (1) 23- 26 F4.1 arcsec DEs Arcsecond of Declination (J2000) (1) 28- 32 F5.2 mag g'mag The g' band magnitude (2) 34- 38 F5.2 mag r'mag The r' band magnitude (2) 40- 44 F5.2 mag i'mag The i' band magnitude (2) 46- 49 F4.2 mag g'-r' The (g'-r') color index (2) 51- 54 F4.2 mag g'-i' The (g'-i') color index (2) 56 A1 --- B/D [BD] Bulge or disk like code (3) -------------------------------------------------------------------------------- Note (1): Right ascension and declination are consistent with USNO, with an rms scatter of ~0.7". Note (2): Magnitudes and colors are corrected for galactic extinction. Note (3): An estimate (for cluster members) of whether the r' band morphology is bulge-like (B) or disk-like (D) (see text). -------------------------------------------------------------------------------- Byte-by-byte Description of file: table8.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 4 I4 --- [BDJ2005] Identification number 6- 11 F6.4 --- z Redshift 13 I1 --- Memb [0/1] Member code (1) 15- 19 F5.3 [km/s] logsigma ? Logarithm of the velocity dispersion 21- 25 F5.3 [km/s] logsigmac ? Logarithm of the corrected velocity dispersion (2) 27- 31 F5.3 [km/s] e_logsigma ? Error in logsigma 33- 36 F4.2 --- B8V ? Fraction of B8 V spectrum in the template mix 38- 41 F4.2 --- G1V ? Fraction of G1 V spectrum in the template mix 43- 46 F4.2 --- K0III ? Fraction of K0 III spectrum in the template mix -------------------------------------------------------------------------------- Note (1): Member code, defined as follows: 1 = Galaxy is a member of RXJ0142.0+2131; 0 = spectroscopic target is not a member of RXJ0142.0+2131. Note (2): Corrected to a standard-sized aperture equivalent to a circular aperture with a diameter of 3.4" at the distance of the Coma cluster. -------------------------------------------------------------------------------- Byte-by-byte Description of file: table9.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 4 I4 --- [BDJ2005] Identification number 6- 8 A3 --- f_[BDJ2005] Flag on [BDJ2005] (1) 10- 14 F5.3 mag CN3883 ? The CN3883 line index 16- 21 F6.3 0.1nm CaHK ? The CaHK line index (2) 23- 27 F5.3 --- D4000 ? The D4000 line index 29- 34 F6.3 0.1nm HdA ? The H{delta}_A_ line index (2) 36- 40 F5.3 mag CN2 ? The CN2 line index 42- 47 F6.3 0.1nm G4300 ? The G4300 line index (2) 49- 55 F7.3 0.1nm HgA ? The H{gamma}_A_ line index (2) 57- 62 F6.3 0.1nm C4668 ? The C4668 line index (2) 64- 69 F6.3 0.1nm HbG ? The H{beta}_G_ line index (2) 71- 76 F6.3 0.1nm Mgb ? The Mgb line index (2) 78- 83 F6.3 0.1nm Fe5270 ? The Fe5270 line index (2) 85- 89 F5.3 0.1nm Fe5335 ? The Fe5335 line index (2) 91- 95 F5.3 --- ? Average of Fe5270 and Fe5335 97-101 F5.3 mag e_CN3883 ? Uncertainty in CN3883 103-107 F5.3 0.1nm e_CaHK ? Uncertainty in CaHK (2) 109-113 F5.3 --- e_D4000 ? Uncertainty in D4000 115-119 F5.3 0.1nm e_HdA ? Uncertainty in Hd (2) 121-125 F5.3 mag e_CN2 ? Uncertainty in CN2 127-131 F5.3 0.1nm e_G4300 ? Uncertainty in G4300 (2) 133-137 F5.3 0.1nm e_HgA ? Uncertainty in HgA (2) 139-143 F5.3 0.1nm e_C4668 ? Uncertainty in C4668 (2) 145-149 F5.3 0.1nm e_HbG ? Uncertainty in HbG (2) 151-155 F5.3 0.1nm e_Mgb ? Uncertainty in Mgb (2) 157-161 F5.3 0.1nm e_Fe5270 ? Uncertainty in Fe5270 (2) 163-167 F5.3 0.1nm e_Fe5335 ? Uncertainty in Fe5335 (2) 169-173 F5.3 --- e_ ? Uncertainty in -------------------------------------------------------------------------------- Note (1): Flag on [BDJ2005], defined as follows: a = is calculated from Fe5270 only assuming the best fitting linear relation between Fe5270 and Fe5335 derived from cluster members. b = Emission-line galaxy. c = H{delta}_A_ + H{gamma}_A_ is derived from H{delta}_A_ only assuming the best fitting linear relation between H{delta}_A_ and H{delta}_A_ + H{gamma}_A_ for cluster members. Note (2): In units of Angstroms. -------------------------------------------------------------------------------- History: From electronic version of the journal ================================================================================ (End) Greg Schwarz [AAS], Marianne Brouty [CDS] 05-Jul-2006