Navegar

Colección

Datos Estadísticas

Artículo

Estamos trabajando para incorporar este artículo al repositorio
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

Context. The evolution of the cluster abundance with redshift is known to be a powerful cosmological constraint when applied to X-ray clusters. Recently, the evolution of the baryon mass function has been proposed as a new variant that is free of the uncertainties present in the temperature-mass relation. A flat model with ΩM ≃ 0.3 was shown to be preferred in the case of a standard cold dark matter scenario. Aims. We compared the high redshift predictions of the baryon mass in clusters with data for a more general class of spectra with a varying shape factor Γ without any restriction to the standard cold dark matter scenario in models normalized to reproduce the local baryon mass function. Methods. Using various halo mass functions existing in the literature we evaluated the corresponding baryon mass functions for the case of the non-standard power spectra mentioned previously. Results. We found that models with ΩM ≃ 1 and Γ ≃ 0.12 reproduce high redshift cluster data just as well as the concordance model does. Conclusions. Finally, we conclude that the baryon mass function evolution alone does not efficiently discriminate between the more general family of flat cosmological models with non-standard power spectra. © ESO 2006.

Registro:

Documento: Artículo
Título:The baryon mass function for galaxy clusters
Autor:Nuza, S.E.; Blanchard, A.
Filiación:Instituto de Astronomía y Física Del Espacio, C.C. 67, Suc. 28, 1428, Buenos Aires, Argentina
Laboratoire d'Astrophysique de Toulouse-Tarbes, 14 avenue E. Belin, 31400 Toulouse, France
Palabras clave:Cosmology: cosmological parameters; Cosmology: large-scale structure of Universe; Cosmology: observations; Astrophysics; Band structure; Data reduction; Mathematical models; Spectrum analysis; Temperature; Baryon mass function; Cosmology: cosmological parameters; Cosmology: large-scale structure of Universe; Cosmology: observations; Redshift; Galaxies
Año:2006
Volumen:452
Número:1
Página de inicio:47
Página de fin:50
DOI: http://dx.doi.org/10.1051/0004-6361:20054465
Título revista:Astronomy and Astrophysics
Título revista abreviado:Astron. Astrophys.
ISSN:00046361
CODEN:AAEJA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v452_n1_p47_Nuza

Referencias:

  • Blanchard, A., Bartlett, J.O., (1998) A&A, L332, p. 49
  • Blanchard, A., Douspis, M., (2005) A&A, 436, p. 411
  • Blanchard, A., Valls-Gabaud, D., Mamon, G., (1992) A&A, 264, p. 365
  • Blanchard, A., Sadat, R., Bartlett, J.G., Le Dour, M., (2000) A&A, 362, p. 809
  • Colafrancesco, S., Vittorio, N., (1994) ApJ, 422, p. 443
  • Freedman, W.L., Madore, B.F., Gibson, B.K., (2001) ApJ, 553, p. 47
  • Efstathiou, G., Frenk, C.S., White, S.D.M., Davis, M., (1988) MNRAS, 235, p. 715
  • Jenkins, A., Frenk, C.S., White, S.D.M., (2001) MNRAS, 321, p. 372. , J01
  • Kaiser, N., (1986) MNRAS, 222, p. 323
  • Lacey, C., Cole, S., (1994) MNRAS, 271, p. 676
  • Lumb, D.H., Bartlett, J.G., Romer, A.K., (2004) A&A, 420, p. 853
  • Markevilch, A., (1998) ApJ, 504, p. 27
  • Navarro, J.F., Frenk, C.S., White, S.D.M., (1996) ApJ, 462, p. 563
  • Oukbir, J., Blanchard, A., (1992) A&A, 262, pp. L21
  • Oukbir, J., Blanchard, A., (1997) A&A, 317, p. 10
  • Partridge, R.B., Peebles, P.J.E., (1967) ApJ, 147, p. 868
  • Peacock, J.A., (1999) Cosmological Physics, , Cambridge University Press
  • Peacock, J.A., Dodds, S.J., (1994) MNRAS, 267, p. 1020
  • Press, W.H., Schechter, P., (1974) ApJ, 187, p. 425
  • Roussel, H., Sadat, R., Blanchard, A., (2000) A&A, 361, p. 429
  • Sadat, R., Blanchard, A., (2001) A&A, 371, p. 19
  • Sadat, R., Blanchard, A., Vauclair, S.C., (2005) A&A, 437, p. 31
  • Sheth, R.K., Tormen, G., (1999) MNRAS, 308, p. 199
  • Sheth, R.K., Mo, H.J., Tormen, G., (2001) MNRAS, 323, p. 1. , SMT
  • Vauclair, S.C., Blanchard, A., Sadat, R., (2003) A&A, 412, pp. L37
  • Vikhlinin, A., Forman, W., Jones, C., (1999) ApJ, 525, p. 47
  • Vikhlinin, A., Voevodkin, A., Mullis, C.R., (2003) ApJ, 590, p. 15. , V2003
  • Voevodkin, A., Vikhlinin, A., (2004) ApJ, 601, p. 610
  • White, M., (2002) ApJS, 143, p. 241
  • White, S.D.M., Efstathiou, G., Frenk, C., (1993) MNRAS, 262, p. 1023
  • White, S.D.M., Navarro, J.F., Evrard, A.E., Frenk, C., (1993) Nature, 366, p. 429
  • Warren, M.S., Abazajian, K., Holz, D.E., Teodoro, L., (2005) ApJL, , submitted [arXiv:astro-ph/0506395]

Citas:

---------- APA ----------
Nuza, S.E. & Blanchard, A. (2006) . The baryon mass function for galaxy clusters. Astronomy and Astrophysics, 452(1), 47-50.
http://dx.doi.org/10.1051/0004-6361:20054465
---------- CHICAGO ----------
Nuza, S.E., Blanchard, A. "The baryon mass function for galaxy clusters" . Astronomy and Astrophysics 452, no. 1 (2006) : 47-50.
http://dx.doi.org/10.1051/0004-6361:20054465
---------- MLA ----------
Nuza, S.E., Blanchard, A. "The baryon mass function for galaxy clusters" . Astronomy and Astrophysics, vol. 452, no. 1, 2006, pp. 47-50.
http://dx.doi.org/10.1051/0004-6361:20054465
---------- VANCOUVER ----------
Nuza, S.E., Blanchard, A. The baryon mass function for galaxy clusters. Astron. Astrophys. 2006;452(1):47-50.
http://dx.doi.org/10.1051/0004-6361:20054465