التفاصيل البيبلوغرافية
| العنوان: |
The 2dF Galaxy Redshift Survey: correlation with the ROSAT-ESO flux-limited X-ray galaxy cluster survey |
| المؤلفون: |
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 |
| المصدر: |
Monthly Notices of the Royal Astronomical Society, 363(2), 661-674, (2005-10-21) |
| بيانات النشر: |
Royal Astronomical Society |
| سنة النشر: |
2005 |
| المجموعة: |
Caltech Authors (California Institute of Technology) |
| مصطلحات موضوعية: |
galaxies: evolution, galaxies: luminosity function, mass function, cosmology: observations, X-rays: galaxies: clusters |
| الوصف: |
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 Lâ‚“ ≥ 0.36 × 10â´â´ erg sâ»Â¹ 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-Lâ‚“ sample within R₂₀₀. We extend the investigation to include composite bâ±¼ 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-Lâ‚“ sample compared to the low-Lâ‚“ 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-Lâ‚“ clusters are more dynamically evolved systems than the low-Lâ‚“ clusters. ; © 2005 RAS. Accepted 2005 July 27. Received 2005 July 26; in original form 2005 June 21. We thank everyone involved in the success of both the 2dFGRS and the REFLEX cluster survey, without which of course this work would not have been possible. Thanks to Phil James for some useful suggestions that improved the clarity of this paper. Thanks also to the referee, Hans Böhringher, who provided useful feedback, which improved this manuscript. MH acknowledges the support of a studentship from ... |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| العلاقة: |
http://arxiv.org/abs/astro-ph/0508207Test; https://doi.org/10.1111/j.1365-2966.2005.09470.xTest; oai:authors.library.caltech.edu:g2nkc-kjv47; eprintid:104371; resolverid:CaltechAUTHORS:20200713-181756654 |
| DOI: |
10.1111/j.1365-2966.2005.09470.x |
| الإتاحة: |
https://doi.org/10.1111/j.1365-2966.2005.09470.xTest |
| حقوق: |
info:eu-repo/semantics/openAccess ; Other |
| رقم الانضمام: |
edsbas.2D0A324A |
| قاعدة البيانات: |
BASE |
