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J/ApJ/842/88   A redshift survey of the central region of A2199   (Song+, 2017)

A redshift survey of the nearby galaxy cluster Abell 2199: comparison of the spatial and kinematic distributions of galaxies with the intracluster medium. Song H., Hwang Ho S., Park C., Tamura T. <Astrophys. J., 842, 88 (2017)> =2017ApJ...842...88S
ADC_Keywords: Clusters, galaxy ; Redshifts ; Spectroscopy ; Photometry, SDSS Keywords: galaxies: clusters: individual (Abell 2199); galaxies: distances and redshifts; galaxies: kinematics and dynamics; galaxies: luminosity function Abstract: We present the results from an extensive spectroscopic survey of the central region of the nearby galaxy cluster Abell 2199 (A2199) at z=0.03. By combining 775 new redshifts from the MMT/Hectospec observations with the data in the literature, we construct a large sample of 1624 galaxies with measured redshifts at R<30', which results in high spectroscopic completeness at rpetro,0<20.5 (77%). We use these data to study the kinematics and clustering of galaxies, focusing on the comparison with those of the intracluster medium (ICM) from Suzaku X-ray observations. We identify 406 member galaxies of A2199 at R<30' using the caustic technique. The velocity dispersion profile of cluster members appears smoothly connected to the stellar velocity dispersion profile of the cD galaxy. The luminosity function is well fitted with a Schechter function at Mr< -15. The radial velocities of cluster galaxies generally agree well with those of the ICM, but there are some regions where the velocity difference between the two is about a few hundred kilometers per second. The cluster galaxies show a hint of global rotation at R<5' with vrot=300-600km/s, but the ICM in the same region does not show such rotation. We apply a friends-of-friends algorithm to the cluster galaxy sample at R<60' and identify 32 group candidates, and examine the spatial correlation between the galaxy groups and X-ray emission. This extensive survey in the central region of A2199 provides an important basis for future studies of interplay among the galaxies, the ICM, and the dark matter in the cluster. Description: We used Hectospec on the MMT 6.5m telescope for spectroscopic observations. We observed four fields with 3x20min exposure each, and obtained spectra covering the wavelength range 3500-9150Å (resolution of ∼6Å). All the fields are centered on the A2199 X-ray center (RAdeg=247.1582, DEdeg=39.5487). In the end, we obtain 775 reliable redshifts from the observations of 1024 targets. We combine these data with those from SDSS DR12 (Alam+ 2015, V/147) and from the literature. See section 2 for further details. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 78 2275 Redshifts in the field of A2199 within 1 degree from the cluster center table3.dat 39 32 Galaxy group candidates within 1 degree from the center of A2199
See also: IX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999) VII/86 : Groups of Galaxies. I. Nearby Groups (Huchra+ 1982) V/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015) J/MNRAS/239/459 : Photographic study of A2197 and A2199 (Dixon+, 1989) J/AJ/116/1529 : cD clusters of galaxies. III. (Hill+, 1998) J/AJ/117/75 : BR photometry in Coma, A2199, AWM5 clusters (Conselice+, 1999) J/ApJ/518/69 : Deep Optical Catalog of galaxy systems (Mahdavi+, 1999) J/A+AS/137/299 : Hamburg/SAO Survey for ELGs. II. (Pustilnik+ 1999) J/ApJS/129/435 : NORAS galaxy cluster survey. I. (Bohringer+, 2000) J/AJ/124/1266 : Redshift survey around Abell 2199 (Rines+, 2002) J/AJ/128/1558 : NOAO Fundamental Plane Survey (Smith+, 2004) J/AJ/135/1837 : Spectroscopy in A2199 and Virgo clusters (Rines+, 2008) J/A+A/499/47 : Lick indices of EDCSN galaxies (Sanchez-Blazquez+, 2009) J/AJ/143/102 : SHELS galaxies with 0.02<z<0.1 (Geller+, 2012) J/ApJS/199/26 : The 2MASS Redshift Survey (2MRS) (Huchra+, 2012) J/ApJ/767/15 : Hectospec Cluster Survey (HeCS) (Rines+, 2013) J/ApJ/783/52 : Redshifts in the field of A383 (Geller+, 2014) J/ApJS/213/35 : SHELS: complete galaxy redshift survey (Geller+, 2014) J/ApJ/797/106 : Redshifts in nine galaxy cluster fields (Hwang+, 2014) J/ApJ/800/80 : MIR properties of galaxies in A2199 at z∼0.03 (Lee+, 2015) J/A+A/581/A11 : 72 WINGS nearby clusters luminosity functions (Moretti+, 2015) J/ApJS/224/11 : SHELS: redshift survey of the F1 DLS field (Geller+, 2016) J/ApJ/819/63 : Hectospec survey of SZ clusters (HeCS-SZ) (Rines+, 2016) : SDSS-III home page Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 4 I4 --- Seq [1/2275] Running sequence number 6- 24 I19 --- objID SDSS DR12 object identification 26- 35 F10.6 deg RAdeg Right Ascension in decimal degrees (J2000) 37- 45 F9.6 deg DEdeg Declination in decimal degrees (J2000) 47- 52 F6.3 mag rmag [12.7/21.5] Extinction corrected r-band Petrosian magnitude 54 I1 --- Flag Point source flag (0=extended; 1=point source) 56- 62 F7.5 --- z [0/6.1] Redshift 64- 70 F7.5 --- e_z [0/0.002] Uncertainty in z 72- 73 I2 --- r_z Reference for z (1) 75 I1 --- Mm Membership flag (0=A2199 non-member; 1=member of A2199 (48 occurrences)) 77- 78 I2 --- Group [0/32] Group identification (0=not involved with groups)
Note (1): Reference as follows: 1 = This study (MMT/Hectospec ; 763 occurrences) 2 = SDSS DR12 (V/147 ; 1020 occurrences) 3 = Rines & Geller (2008, J/AJ/135/1837 ; 472 occurrences) 4 = Rines et al. (2002, J/AJ/124/1266) 5 = Hill & Oegerle (1998, J/AJ/116/1529) 6 = Smith et al. (NOAO Fundamental Plane Survey, 2004, J/AJ/128/1558) 7 = Zabludoff et al. (1990ApJS...74....1Z) 8 = Huchra et al. (2MASS Redshift Survey, 2012, J/ApJS/199/26) 9 = Pustilnik et al. (1999, J/A+AS/137/299) 10 = Bernardi et al. (2002AJ....123.2990B) 11 = Wyithe et al. (2005ApJ...634..715W)
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 2 I2 --- Group [1/32] Group identifier (1) 4- 5 A2 --- l_Nm [≥] Limit flag on Nm (2) 6- 8 I3 --- Nm [3/244] Number of member galaxies in each group (2) 10- 19 F10.6 deg RAdeg Central (median) right ascension (J2000) 21- 29 F9.6 deg DEdeg Central (median) declination (J2000) 31- 35 I5 km/s cz [8383/10180] Median line-of-sight velocity (czcen) 37- 39 I3 km/s SigP [87/954] Line-of-sight velocity dispersion (σP)
Note (1): Because the number density of the galaxy sample is different in the inner and outer regions due to the different limiting apparent magnitudes of the data, the linking length (ll) for the FoF algorithm is chosen differently. Groups 1-17 are those found at R<30' and identified with ll=0.083h-1Mpc, and Groups 18-32 are those at R=30-60' and identified with ll=0.090h-1Mpc. Note (2): For the groups close to the boundary where the limiting apparent magnitude changes (i.e. R=30') and the groups near the outermost boundary (R=1°), Nm can be underestimated. Thus we add "≥" to indicate that the given Nm is the lower limit.
History: From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 31-Jan-2018
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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