J/AJ/130/425 Catalog of distant compact groups of galaxies (De Carvalho+, 2005) ================================================================================ A catalog of distant compact groups using the Digitized Second Palomar Observatory Sky Survey. De Carvalho R.R., Goncalves T.S., Iovino A., Kohl-Moreira J.L., Gal R.R., Djorgovski S.G. =2005AJ....130..425D ================================================================================ ADC_Keywords: Clusters, galaxy ; Photometry ; Redshifts Keywords: clusters: general - methods: statistical - surveys Abstract: In this paper we present an objectively defined catalog of 459 small, high-density groups of galaxies out to z~0.2 in a region of ~6260deg^2^ in the northern sky derived from the Digitized Second Palomar Observatory Sky Survey. Our catalog extends down to r=19.0 and has a median redshift of z_med_=0.12, making it complementary to Hickson's catalog (Cat. ) for the nearby universe (z_med_=0.03). File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table1.dat 73 459 Characteristic parameters of the groups in our sample table2.dat 80 1889 Catalog of group members -------------------------------------------------------------------------------- See also: J/AJ/125/1660 : Distant compact groups from DPOSS (Iovino+, 2003) VII/213 : Hickson's Compact groups of Galaxies (Hickson+ 1982-1994) J/AJ/127/1811 : Catalog of SDSS compact groups of galaxies (Lee+, 2004) J/ApJS/110/1 : Galaxies around HCGs (de Carvalho+ 1997) Byte-by-byte Description of file: table1.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 3 A3 --- --- [PCG] 4- 16 A13 --- PCG Group name (JHHMMSS+DDMMSS) 18- 19 I2 h RAh Hour of Right Ascension (J2000) (1) 21- 22 I2 min RAm Minute of Right Ascension (J2000) (1) 24- 28 F5.2 s RAs Second of Right Ascension (J2000) (1) 30 A1 --- DE- Sign of the Declination (J2000) (1) 31- 32 I2 deg DEd Degree of Declination (J2000) (1) 34- 35 I2 arcmin DEm Arcminute of Declination (J2000) (1) 37- 41 F5.2 arcsec DEs Arcsecond of Declination (J2000) (1) 43- 47 F5.3 arcmin Rad Group radius 49- 53 F5.2 mag rmag Total r band group magnitude 55- 59 F5.2 mag/arcsec2 SuBr Mean group r band surface brightness 61- 65 F5.3 mag Dmag Faintest minus brightest galaxy magnitude 67- 71 F5.3 mag Dout ? Magnitude difference between the brightest group member and brightest outlier galaxy within the isolation radius 73 I1 --- Nmemb Number of galaxies in the group -------------------------------------------------------------------------------- Note (1): Of group center. -------------------------------------------------------------------------------- Byte-by-byte Description of file: table2.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 3 A3 --- --- [PCG] 4- 16 A13 --- PCG Group name (JHHMMSS+DDMMSS) 18 A1 --- Seq Individual group galaxy identification (1) 20- 21 I2 h RAh Hour of Right Ascension (J2000) 23- 24 I2 min RAm Minute of Right Ascension (J2000) 26- 30 F5.2 s RAs Second of Right Ascension (J2000) 32 A1 --- DE- Sign of the Declination (J2000) 33- 34 I2 deg DEd Degree of Declination (J2000) 36- 37 I2 arcmin DEm Arcminute of Declination (J2000) 39- 43 F5.2 arcsec DEs Arcsecond of Declination (J2000) 45- 50 F6.3 mag rmag Total r band magnitude 52- 57 F6.3 mag g-r Total (g-r) color index 59- 63 F5.1 deg PA [-90,90] Position Angle (2) 65- 69 F5.3 --- Ellip Ellipticity (1-b/a) 71- 75 F5.3 --- z ? Redshift 77- 80 A4 --- r_z Redshift from SDSS spectra -------------------------------------------------------------------------------- Note (1): Ordered from brightest to faintest. Note (2): Measured counter-clockwise. -------------------------------------------------------------------------------- History: From electronic version of the journal ================================================================================ (End) Greg Schwarz [AAS], Marianne Brouty [CDS] 24-Oct-2005