Fulltext

The 2dF Galaxy Redshift Survey: correlation with the ROSAT-ESO flux-limited X-ray galaxy cluster survey

Hilton, Matt ; Collins, Chris ; de Propris, Roberto ; Baldry, Ivan K. ; Baugh, Carlton M. ; Bland-Hawthorn, Joss ; Bridges, Terry ; Cannon, Russell ; Cole, Shaun ; Colless, Matthew ; Couch, Warrick J. ; Dalton, Gavin B. ; Driver, Simon P. ; Efstathiou, George ; Ellis, Richard S. ; Frenk, Carlos S. ; Glazebrook, Karl ; Jackson, Carole A. ; Lahav, Ofer ; Lewis, Ian ; Lumsden, Stuart ; Maddox, Steve J. ; Madgwick, Darren ; Norberg, Peder ; Peacock, John A. ; Peterson, Bruce A. ; Sutherland, Will ; Taylor, Keith

In: Monthly Notices of the Royal Astronomical Society, 2005, vol. 363, no. 2, p. 661-674

Ajouter à la liste personnelle
    Titre
    • The 2dF Galaxy Redshift Survey: correlation with the ROSAT-ESO flux-limited X-ray galaxy cluster survey
    Auteur
    • Hilton, Matt. Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Egerton Wharf, Birkenhead CH41 1LD
    • Collins, Chris. Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Egerton Wharf, Birkenhead CH41 1LD
    • de Propris, Roberto. Research School of Astronomy & Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia
    • Baldry, Ivan K.. Department of Physics & Astronomy, Johns Hopkins University, Baltimore, MD 21118-2686, USA
    • Baugh, Carlton M.. Department of Physics, University of Durham, South Road, Durham DH1 3LE
    • Bland-Hawthorn, Joss. Anglo-Australian Observatory, PO Box 296, Epping, NSW 2111, Australia
    • Bridges, Terry. Department of Physics, Queen's University, Kingston, Ontario, K7L 3N6, Canada
    • Cannon, Russell. Anglo-Australian Observatory, PO Box 296, Epping, NSW 2111, Australia
    • Cole, Shaun. Department of Physics, University of Durham, South Road, Durham DH1 3LE
    • Colless, Matthew. Anglo-Australian Observatory, PO Box 296, Epping, NSW 2111, Australia
    • Couch, Warrick J.. Department of Astrophysics, University of New South Wales, Sydney, NSW 2052, Australia
    • Dalton, Gavin B.. Department of Physics, University of Oxford, Keble Road, Oxford OX1 3RH
    • Driver, Simon P.. Research School of Astronomy & Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia
    • Efstathiou, George. Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA
    • Ellis, Richard S.. Department of Astronomy, California Institute of Technology, Pasadena, CA 91025, USA
    • Frenk, Carlos S.. Department of Physics, University of Durham, South Road, Durham DH1 3LE
    • Glazebrook, Karl. Department of Physics & Astronomy, Johns Hopkins University, Baltimore, MD 21118-2686, USA
    • Jackson, Carole A.. CSIRO Australia Telescope National Facility, PO Box 76, Epping, NSW 1710, Australia
    • Lahav, Ofer. Department of Physics & Astronomy, University College London, Gower Street, London WC1E 6BT
    • Lewis, Ian. Department of Physics, University of Oxford, Keble Road, Oxford OX1 3RH
    • Lumsden, Stuart. Department of Physics, University of Leeds, Woodhouse Lane, Leeds LS2 9JT
    • Maddox, Steve J.. School of Physics & Astronomy, University of Nottingham, Nottingham NG7 2RD
    • Madgwick, Darren. Department of Astronomy, University of California, Berkeley, CA 94720, USA
    • Norberg, Peder. ETHZ Institut für Astronomie, HPF G3.1, ETH Hönggerberg, CH-8093 Zürich, Switzerland
    • Peacock, John A.. Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ
    • Peterson, Bruce A.. Research School of Astronomy & Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia
    • Sutherland, Will. Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ
    • Taylor, Keith. Department of Astronomy, California Institute of Technology, Pasadena, CA 91025, USA
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Monthly Notices of the Royal Astronomical Society, 2005, vol. 363, no. 2, p. 661-674. Blackwell Science Ltd
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:294145
    Summary
    The ROSAT-European Southern Observatory (ESO) flux-limited X-ray (REFLEX) galaxy cluster survey and the Two-degree Field Galaxy Redshift Survey (2dFGRS), respectively, comprise the largest, homogeneous X-ray selected cluster catalogue and completed galaxy redshift survey. In this work, we combine these two outstanding data sets in order to study the effect of the large-scale cluster environment, as traced by X-ray luminosity, on the properties of the cluster member galaxies. We measure the LX−σr relation from the correlated data set and find it to be consistent with recent results found in the literature. Using a sample of 19 clusters with LX≥ 0.36 × 1044 erg s−1 in the 0.1-2.4 keV band, and 49 clusters with lower X-ray luminosity, we find that the fraction of early spectral type (η=−1.4), passively evolving galaxies is significantly higher in the high-LX sample within R200. We extend the investigation to include composite bJ cluster luminosity functions, and find that the characteristic magnitude of the Schechter-function fit to the early-type luminosity function is fainter for the high-LX sample compared to the low-LX sample (ΔM*= 0.58 ± 0.14). This seems to be driven by a deficit of such galaxies with MbJ∼−21. In contrast, we find no significant differences between the luminosity functions of star-forming, late-type galaxies. We believe these results are consistent with a scenario in which the high-LX clusters are more dynamically evolved systems than the low-LX clusters