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J/A+A/392/795    Multi-wavelength study of 2 galaxy clusters (Valtchanov+, 2002)

Abell 1451 and 1RXS J131423.6-251521: A multi-wavelength study of two dynamically perturbed clusters of galaxies. Valtchanov I., Murphy T., Pierre M., Hunstead R., Lemonon L. <Astron. Astrophys. 392, 795 (2002)> =2002A&A...392..795V
ADC_Keywords: Clusters, galaxy ; Redshifts ; Radio sources ; X-ray sources ; Magnitudes Keywords: galaxies: clusters: individual: Abell 1451, 1RXS J131423.6-251521 - X-rays: galaxies - radio lines: galaxies - galaxies: distances and redshifts - galaxies: clusters: general Abstract: We present results from optical, X-ray and radio observations of two X-ray bright (LX∼1045erg/s) galaxy clusters. Abell 1451 is at redshift z=0.1989 and has line-of-sight velocity dispersion σV=1330km/s as measured from 57 cluster galaxies. It has regular X-ray emission without signs of substructure, a Gaussian velocity distribution, lack of a cooling flow region and significant deviations from the observed scaling laws between luminosity, temperature and velocity dispersion, indicating a possible merging shock. There is only one spectroscopically confirmed cluster radio galaxy, which is close to the X-ray peak. 1RXS J131423.6-251521 (for short RXJ1314-25) has z=0.2474 and σV=1100km/s from 37 galaxies. There are two distinct galaxy groups with a projected separation of ∼700kpc. The velocity histogram is bi-modal with a redshift-space separation of ∼1700km/s, and the X-ray emission is double peaked. Although there are no spectroscopically confirmed cluster radio galaxies, we have identified a plausible relic source candidate. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 99 81 A1451 spectroscopic catalogue table4.dat 99 48 1RXS J131423.6-25152 spectroscopic catalogue table11.dat 79 40 Radio sources for Abell 1451 and 1RXS J131423.6-25152 within 1 Abell radius of the cluster centre table12.dat 50 15 Radio-optical identifications in Abell 1451 and 1RXS J131423.6-25152
Table 2: Summary of the multi-slit spectroscopic observations. -------------------------------------------------------------------------------- Date Object RA (2000) DE Airmass MOS Exposure masks/slits -------------------------------------------------------------------------------- 1993 Mar 29 Abell 1451 12:03:15 -21:31:36 1.2 1/15 900 1993 Mar 29 RXJ1314-25 13:14:29 -25:16:25 1.1 1/15 2x900+1800 1999 Apr 19/20 Abell 1451E 12:03:12 -21:33:25 1.34 2/20+21 3x1800/4x2100 1999 Apr 19/20 Abell 1451W 12:03:23 -21:33:25 1.40 2/21+19 2x3600/4x2100 1999 Apr 19/20 RXJ1314-25N 13:14:22 -25:14:55 1.06 2/17+18 2x3600/4x2100 1999 Apr 19/20 RXJ1314-25S 13:14:22 -25:17:55 1.04 2/17+18 4x1800/4x2100 Byte-by-byte Description of file: table3.dat table4.dat
Bytes Format Units Label Explanations
1- 2 I2 --- Seq Sequential number of the source in the cluster 3 A1 --- n_Seq [*] *: 1993 observations 5- 6 I2 h RAh Right ascension (J2000) 8- 9 I2 min RAm Right ascension (J2000) 11- 14 F4.1 s RAs Right ascension (J2000) 16 A1 --- DE- Declination sign (J2000) 17- 18 I2 deg DEd Declination (J2000) 20- 21 I2 arcmin DEm Declination (J2000) 23- 24 I2 arcsec DEs Declination (J2000) 26- 32 F7.4 --- z Redshift from cross-correlation or line measurements 34- 39 F6.4 --- e_z rms uncertainty on z 41- 45 F5.2 mag Bjmag ? BJ magnitude or R when BJ not available 46 A1 --- n_Bjmag [R+] R: Rmag in BJmag, +: possible magnitude problem due to blending 48 I1 --- Flag [0/5] Classification flag (1) 50- 99 A50 --- Notes Notes
Note (1): Flag codes: 0: star 1: galaxy member of the cluster 2: galaxy member of the cluster with emission lines 3: emission line galaxy not in the cluster 5: other galaxy. Magnitudes are taken from the SuperCOSMOS Sky Survey (Hambly et al., 2001MNRAS.326.1279H)
Byte-by-byte Description of file: table11.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Cluster Cluster name (Abell 1451 or RX J1314-25) 12- 14 A3 --- Source Source designation 16- 17 I2 h RAh Source right ascension (J2000) 19- 20 I2 min RAm Source right ascension (J2000) 22- 26 F5.2 s RAs Source right ascension (J2000) 28- 31 F4.2 s e_RAs rms uncertainty on right ascension 34 A1 --- DE- Source declination sign 35- 36 I2 deg DEd Source declination (J2000) 38- 39 I2 arcmin DEm Source declination (J2000) 41- 44 F4.1 arcsec DEs Source declination (J2000) 46- 48 F3.1 arcsec e_DEs rms uncertainty on declination 50- 55 F6.3 GHz Freq Observation Frequency 57- 61 F5.2 mJy Speak ? Peak flux density at frequency Freq (in mJy/beam) 63- 66 F4.2 mJy e_Speak ? rms uncertainty on Speak (in mJy/beam) 69- 73 F5.2 mJy Sint ? Integrated flux density at frequency Freq 75- 78 F4.2 mJy e_Sint ? rms uncertainty on Sint
Byte-by-byte Description of file: table12.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Cluster Cluster name (Abell 1451 or RX J1314-25) 12- 14 A3 --- Source Source designation 16- 17 I2 h RAh Source right ascension (J2000) 19- 20 I2 min RAm Source right ascension (J2000) 22- 26 F5.2 s RAs Source right ascension (J2000) 28 A1 --- DE- Source declination sign 29- 30 I2 deg DEd Source declination (J2000) 32- 33 I2 arcmin DEm Source declination (J2000) 35- 39 F5.2 arcsec DEs Source declination (J2000) 40- 44 F5.2 mag Bjmag BJ magnitude 46- 48 F3.1 arcsec Deltar Radius-vector offset between radio and SuperCOSMOS optical positions 50 I1 --- TClass [1/2] SuperCOSMOS image classification: 1 = galaxy; 2 = star
History: From electronic version of the journal
(End) Patricia Bauer [CDS] 08-Oct-2002
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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