Access to Astronomical Catalogues

← Click to display the menu
J/AJ/132/514        Galaxies of RX J1416.4+2315 cluster      (Cypriano+, 2006)

Velocity dispersion, mass, and the luminosity function of the fossil cluster RX J1416.4+2315. Cypriano E.S., Mendes de Oliveira C.L., Sodre L.Jr <Astron. J., 132, 514-520 (2006)> =2006AJ....132..514C
ADC_Keywords: Clusters, galaxy ; Galaxies, photometry ; Radial velocities Keywords: cosmology: observations - galaxies: clusters: individual (RX J1416.4+2315) - galaxies: elliptical and lenticular, cD - galaxies: evolution - galaxies: kinematics and dynamics - galaxies: luminosity function, mass function Abstract: We study the properties of the fossil cluster RX J1416.4+2315 through g'- and i'-band imaging and spectroscopy of 25 member galaxies. The system is at a mean redshift of 0.137 and has a velocity dispersion of 584km/s. Superposed onto one quadrant of the cluster field is a group of five galaxies at a mean redshift of 0.131, which, if included as part of the cluster, increases the velocity dispersion to 846km/s. The central object of RX J1416.4+2315 is a normal elliptical galaxy with no cD envelope. Description: The imaging and multislit spectroscopic observations of the galaxy group RX J1416.4+2315 were done with the Gemini Multi-Object Spectrograph (GMOS) mounted on the Gemini North telescope on 2005 February 22 and 2005 March 67, respectively. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 59 54 Properties of the Galaxies in the RX J1416.4+2315 Field
Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 10 A10 --- [CMS2006] Galaxy name (Gss.s+mmss) (1) 12- 13 I2 h RAh Right ascension (J2000.0) 15- 16 I2 min RAm Right ascension (J2000.0) 18- 21 F4.1 s RAs Right ascension (J2000.0) 23 A1 --- DE- Declination sign (J2000.0) 24- 25 I2 deg DEd Declination (J2000.0) 27- 28 I2 arcmin DEm Declination (J2000.0) 30- 31 I2 arcsec DEs Declination (J2000.0) 33- 37 F5.2 mag i'mag Total i' magnitude (in AB system) 39- 42 F4.2 mag g'-i' Aperture g'-i' colour index 44- 49 I6 km/s RV Radial velocity 51- 53 I3 km/s e_RV rms uncertainty on RV 55- 58 F4.2 --- R ? Tonry & Davis (1979AJ.....84.1511T) cross-correlation coefficient 59 A1 --- n_RV [e] Redshift measured from emission lines
Note (1): The names of the galaxies are based on their J2000.0 celestial coordinates (seconds of right ascension and arcminutes and arcseconds of declination). Thus, galaxy Gab.c+defg is located at 14:16:ab.c +23:de:fg.
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 08-Feb-2008
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