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BAXGALCLUS - BAX X-Ray Galaxy Clusters and Groups Catalog

HEASARC
Archive

Overview

This table contains the BAX X-Ray Galaxy Clusters and Groups Catalog. BAX (`Base de Donnees Amas de Galaxies X': see http://bax.ast.obs-mip.fr/ for more details) is a multi-wavelength database dedicated to X-ray clusters and groups of galaxies which allows detailed information retrieval. BAX is designed to support astronomical research by providing access to published measurements of the main physical quantities and to the related bibliographic references: basic data stored in the database are cluster/group identifiers, equatorial coordinates, redshift, flux, X-ray luminosity (in the ROSAT band) and temperature, and (in the online version at http://bax.ast.obs-mip.fr/) links to additional linked parameters (in X-rays, such as spatial profile parameters, as well as SZ parameters of the hot gas, lensing measurements, and data at other wavelengths, such as the optical and radio bands). The clusters and groups in the online BAX database can be queried by the basic parameters as well as the linked parameters or combinations of these.

The authors expect BAX to become an important tool for the astronomical community. BAX will optimize various aspects of the scientific analysis of X-ray clusters and groups of galaxies, from proposal planning to data collection, interpretation and publication, from both ground based facilities like MEGACAM (CFHT), VIRMOS (VLT) and from space missions like XMM-Newton, Chandra and Planck.


Catalog Bibcode

2004A&A...424.1097S

References

X-Rays Galaxy Clusters Database.
     Sadat R., Blanchard A., Kneib J.-P., Mathez G., Madore B., Mazzarella J.M.
     <Astron. Astrophys. 424, 1097 (2004)>
     =2004A&A...424.1097S        (SIMBAD/NED BibCode)

Provenance

This table was created by the HEASARC in October 2004 based on CDS table B/bax/bax.dat.

HEASARC Implementation

Entries in the original CDS table for which all parameters other than the name were blank or -99.99 (the equivalent of null) have been deleted from this HEASARC table. There remain a small number of entries which have null ra and dec values in this table which thus cannot be found using position-based searches, namely the clusters 'Abell0548S', 'RXJ0847.2+3449', and 'Abell1750N': these clusters can only be found either by doing an unconstrained search of the table to find all entries or by doing a parameter search on the name field using these names.

Parameters

Name
The cluster designation.

RA
The Right Ascension of the cluster in the selected equinox. This was given in J2000 equatorial coordinates in degrees with a precision of 0.0001 degrees in the originating table.

Dec
The Declination of the cluster in the selected equinox. This was given in J2000 equatorial coordinates in degrees with a precision of 0.0001 degrees in the originating table.

LII
The Galactic Longitude of the cluster.

BII
The Galactic Latitude of the cluster.

Redshift
The redshift of the cluster.

Flux
The flux in the ROSAT (0.1 - 2.4 keV) band, in erg/s/cm^2.

Bibcode_Flux
The ADS-style reference bibcode for the flux information.

Lx
The X-ray luminosity in the ROSAT (0.1 - 2.4 keV) band, in erg/s.

Bibcode_Lx
The ADS-style reference bibcode for the X-ray luminosity information.

Tx
The temperature of the X-ray emitting intracluster gas, in keV.

Tx_Lower_Err
The lower mean error in the temperature, in keV.

Tx_Upper_Err
The upper mean error in the temperature, in keV.

Bibcode_Tx
The ADS-style reference bibcode for the X-ray temperature information.


Contact Person

Questions regarding the BAXGALCLUS database table can be addressed to the HEASARC User Hotline.

Page Author: Browse Software Development Team
Last Modified: 8-Nov-2004