Browse > Article
http://dx.doi.org/10.5303/PKAS.2015.30.2.349

PROBING GALAXY FORMATION MODELS IN COSMOLOGICAL SIMULATIONS WITH OBSERVATIONS OF GALAXY GROUPS  

HABIB. G., KHOSROSHAHI (School of Astronomy, Institute for Research in Fundamental Sciences)
GOZALIASL, GHASSEM (School of Astronomy, Institute for Research in Fundamental Sciences)
FINOGUENOV, ALEXIS (Department of Physics, University of Helsinki)
RAOUF, MOJTABA (School of Astronomy, Institute for Research in Fundamental Sciences)
MIRAGHEE, HALIME (School of Astronomy, Institute for Research in Fundamental Sciences)
Publication Information
Publications of The Korean Astronomical Society / v.30, no.2, 2015 , pp. 349-353 More about this Journal
Abstract
We use multi-wavelength observations of galaxy groups to probe the formation models for galaxy formation in cosmological simulations, statistically. The observations include Chandra and XMM-Newton X-ray observations, optical photometry and radio observations at 1.4 GHz and 610 MHz. Using a large sample of galaxy groups observed by the XMM-Newton X-ray telescope as part of the XMM-Large Scale Survey, we carried out a statistical study of the redshift evolution of the luminosity gap for a well defined mass-selected group sample and show the relative success of some of the semi-analytic models in reproducing the observed properties of galaxy groups up to redshift z ~ 1.2. The observed trend argues in favour of a stronger evolution of the feedback from active galactic nuclei at z < 1 compared to the models. The slope of the relation between the magnitude of the brightest cluster galaxy and the value of the luminosity gap does not evolve with redshift and is well reproduced by the models. We find that the radio power of giant elliptic galaxies residing in galaxy groups with a large luminosity gap are lower compared to giant ellipticals of the same stellar masses but in typical galaxy groups.
Keywords
Galaxies; Galaxy Groups; Cosmological Simulations;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Adami, C., Mazure, A., & Pierre, M., et al., 2011, The XMM-LSS Survey: Optical Assessment and Properties of Different X-ray Selected Cluster Classes, A&A, 526, A18   DOI   ScienceOn
2 Alshino A., Khosroshahi H. G., Ponman T., Willis J., Pierre M., Pacaud F., & Smith G. P., 2009, MNRAS, 401, 941
3 Birzan L., Rafferty D. A., McNamara B. R., Wise M. W., & Nulsen P. E. J., 2004, A Systematic Study of Radio-induced X-Ray Cavities in Clusters, Groups, and Galaxies, ApJ, 607, 800   DOI
4 Dariush A. A., Khosroshahi H. G., Ponman T. J., Pearce F., Raychaudhury S., & Hartly W., 2007, The Mass Assembly of Fossil Groups of Galaxies in the Millennium Simulation, MNRAS, 382, 433   DOI   ScienceOn
5 Dariush A. A., Raychaudhury S., Ponman T. J., Khosroshahi H. G., Benson A. J., Bower R. G., & Pearce F., 2010, The Mass Assembly of Galaxy Groups and the Evolution of the Magnitude Gap, MNRAS, 405, 1873
6 De Lucia, G., & Blaizot, J., 2007, The Hierarchical Formation of the Brightest Cluster Galaxies, MNRAS , 375, 2   DOI   ScienceOn
7 Erben, T., Hildebrandt, H., & Miller, L., et al., 2013, CFHTLenS: the Canada-France-Hawaii Telescope Lensing Survey - imaging Data and Catalogue Products, MNRAS, 433, 2545   DOI
8 Fabian A. C., ARA&A, 1994, 32, 277   DOI   ScienceOn
9 Gozaliasl, G., Finoguenov, A., & Khosroshahi, H. G., et al., 2014, Mining the Gap: Evolution of the Magnitude Gap in X-ray Galaxy Groups from the 3-square-degree XMM Coverage of CFHTLS, A&A, 566, A140   DOI
10 Gozaliasl, G., & Khosroshahi, H. G., et al., 2014, Evolution of the Galaxy Luminosity Function in Progenitors of Fossil Groups, A&A, 571, 49   DOI
11 Guo, Q., White, S., Boylan-Kolchin, M., De Lucia, G., Kaumann, G., Lemson, G., Li C., Springel, V., & Weinmann, S., 2011, From Dwarf Spheroidals to cD galaxies: Simulating the Galaxy Population in a CDM Cosmology, MNRAS, 413, 101   DOI   ScienceOn
12 Jones L.R., Ponman T.J., Horton A., Babul A., Ebeling H., & Burke D.J., 2003, The Nature and Space Density of Fossil Groups of Galaxies, MNRAS, 343, 627   DOI   ScienceOn
13 Khosroshahi H. G., Jones L. R., & Ponman T. J., 2004, An Old Galaxy Group: Chandra X-ray Observations of the Nearby Fossil Group NGC 6482, MNRAS, 349, 1240   DOI   ScienceOn
14 Khosroshahi H. G., Ponman T. J., & Jones L. R., 2006, The Central Elliptical Galaxy in Fossil Groups and Formation of Brightest Cluster Galaxies, MNRAS,372, L68   DOI   ScienceOn
15 Khosroshahi, H.G., Ponman, T.J., & Jones, L.R., 2007, Scaling Relations in Fossil Galaxy Groups, MNRAS, 377, 595   DOI   ScienceOn
16 Pierre, M., et al., 2007, The XMM-Large Scale Structure Catalogue: X-ray Sources and Associated Optical Data. Version I, MNRAS, 382, 279   DOI   ScienceOn
17 Le Fevre, O., et al., 2005, The VIMOS VLT Deep Survey. First Epoch VVDS-Deep Survey: 11 564 Spectra with 17.5 IAB 24, and the Redshift Distribution over 0 z 5, A&A, 439, 845   DOI   ScienceOn
18 Miraghaei, H., Khosroshahi, H. G., Klckner, H.-R., Ponman, T. J., Jetha, N. N., & Raychaudhury, S., 2014, IGM Heating and AGN activity in Fossil Galaxy Groups, IAUS, 304, 349
19 Ponman T. J., Allan D. J., Jones L. R., Merrifield M., & MacHardy I. M., 1994, A Possible Fossil Galaxy Group, Nature, 369, 462   DOI   ScienceOn
20 Smith, Graham P., Khosroshahi, Habib G., Dariush, A., Sanderson, A. J. R., Ponman, T. J., Stott, J. P., Haines, C. P., Egami, E., & Stark, D. P., 2010, LoCuSS: Connecting the Dominance and Shape of Brightest Cluster Galaxies with the Assembly History of Massive Clusters, MNRAS, 409, 169   DOI   ScienceOn
21 Springel, V. and White, S. D. M. and Jenkins, A. and Frenk, C. S., Yoshida, N., Gao, L., Navarro, J., & Thacker, R., et al., 2005, Simulations of the Formation, Evolution and Clustering of Galaxies and Quasars, Nature, 435, 629   DOI   ScienceOn
22 Raouf, M., Khosroshahi, H. G., Ponman, T. J., Dariush, A. A., Molaeinezhad, A., & Tavasoli, S., 2014, Ultimate Age-dating Method for Galaxy Groups; Clues from the Millennium Simulations, MNRAS, 442, 1578   DOI
23 Sun, M., Forman, W., Vikhlinin, A., Hornstrup, A., Jones, C., & Murray, S. S., 2004, ESO 3060170: A Massive Fossil Galaxy Group with a Heated Gas Core?, ApJ, 612, 805   DOI