The 2dF galaxy redshift survey: Correlation with the ROSAT-ESO flux-limited X-ray galaxy cluster survey
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 th...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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2005
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| _version_ | 1797057223983104000 |
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| author | Hilton, M Collins, C De Propris, R Baldry, I Baugh, C Bland-Hawthorn, J Bridges, T Cannon, R Cole, S Colless, M Couch, W Dalton, G Driver, S Efstathiou, G Ellis, R Frenk, C Glazebrook, K Jackson, C Lahav, O Lewis, I Lumsden, S Maddox, S Madgwick, D Norberg, P Peacock, J |
| author_facet | Hilton, M Collins, C De Propris, R Baldry, I Baugh, C Bland-Hawthorn, J Bridges, T Cannon, R Cole, S Colless, M Couch, W Dalton, G Driver, S Efstathiou, G Ellis, R Frenk, C Glazebrook, K Jackson, C Lahav, O Lewis, I Lumsden, S Maddox, S Madgwick, D Norberg, P Peacock, J |
| author_sort | Hilton, M |
| collection | OXFORD |
| description | 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 L X - σ r 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 L X ≥ 0.36 × 10 44 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-L X sample within A 200- We extend the investigation to include composite b j 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-L x sample compared to the low-L x sample (ΔM* = 0.58 ± 0.14). This seems to be driven by a deficit of such galaxies with M bJ, ∼ -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-L X clusters are more dynamically evolved systems than the low-L X clusters. © 2005 RAS. |
| first_indexed | 2024-03-06T19:33:14Z |
| format | Journal article |
| id | oxford-uuid:1e2d0153-6b4d-48ed-aa46-d56a1fbab57b |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:33:14Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:1e2d0153-6b4d-48ed-aa46-d56a1fbab57b2022-03-26T11:14:56ZThe 2dF galaxy redshift survey: Correlation with the ROSAT-ESO flux-limited X-ray galaxy cluster surveyJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:1e2d0153-6b4d-48ed-aa46-d56a1fbab57bEnglishSymplectic Elements at Oxford2005Hilton, MCollins, CDe Propris, RBaldry, IBaugh, CBland-Hawthorn, JBridges, TCannon, RCole, SColless, MCouch, WDalton, GDriver, SEfstathiou, GEllis, RFrenk, CGlazebrook, KJackson, CLahav, OLewis, ILumsden, SMaddox, SMadgwick, DNorberg, PPeacock, JThe 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 L X - σ r 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 L X ≥ 0.36 × 10 44 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-L X sample within A 200- We extend the investigation to include composite b j 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-L x sample compared to the low-L x sample (ΔM* = 0.58 ± 0.14). This seems to be driven by a deficit of such galaxies with M bJ, ∼ -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-L X clusters are more dynamically evolved systems than the low-L X clusters. © 2005 RAS. |
| spellingShingle | Hilton, M Collins, C De Propris, R Baldry, I Baugh, C Bland-Hawthorn, J Bridges, T Cannon, R Cole, S Colless, M Couch, W Dalton, G Driver, S Efstathiou, G Ellis, R Frenk, C Glazebrook, K Jackson, C Lahav, O Lewis, I Lumsden, S Maddox, S Madgwick, D Norberg, P Peacock, J The 2dF galaxy redshift survey: Correlation with the ROSAT-ESO flux-limited X-ray galaxy cluster survey |
| title | The 2dF galaxy redshift survey: Correlation with the ROSAT-ESO flux-limited X-ray galaxy cluster survey |
| title_full | The 2dF galaxy redshift survey: Correlation with the ROSAT-ESO flux-limited X-ray galaxy cluster survey |
| title_fullStr | The 2dF galaxy redshift survey: Correlation with the ROSAT-ESO flux-limited X-ray galaxy cluster survey |
| title_full_unstemmed | The 2dF galaxy redshift survey: Correlation with the ROSAT-ESO flux-limited X-ray galaxy cluster survey |
| title_short | The 2dF galaxy redshift survey: Correlation with the ROSAT-ESO flux-limited X-ray galaxy cluster survey |
| title_sort | 2df galaxy redshift survey correlation with the rosat eso flux limited x ray galaxy cluster survey |
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