Cosmological parameters from the SDSS DR5 velocity dispersion function of early-type galaxies through radio-selected lens statistics

被引：33

作者：

Chae, Kyu-Hyun ^{[1
]}

机构：

[1] Sejong Univ, Dept Astron & Space Sci, Seoul 143747, South Korea

来源：

ASTROPHYSICAL JOURNAL | 2007年 / 658卷 / 02期

关键词：

cosmological parameters; galaxies : evolution; galaxies : statistics; gravitational lensing;

D O I：

10.1086/516569

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We improve strong lensing constraints on cosmological parameters in light of the new measurement of the velocity dispersion function of early-type galaxies based on the SDSS DR5 data and recent semianalytical modeling of galaxy formation. Using both the number statistics of the CLASS statistical sample and the image separation distribution of the CLASS and the PANELS radio-selected lenses, we find the cosmological matter density to be Omega(m,0) = 0.25(-0.08)(+0.12) (68% CL) assuming evolutions of galaxies predicted by a semianalytical model of galaxy formation and Omega(m,0) = 0.25(-0.08)(+0.12) assuming no evolution of galaxies for a flat cosmology with an Einstein cosmo logical constant. For a flat cosmology with a generalized dark energy, we find the nonevolving dark energy equation of state w(x) < -1.2 (w(x) < -0.5) at the 68% CL (95% CL).

引用

页码：L71 / L74

页数：4

共 44 条

[31] Morphology segregation of galaxies in color-color gradient space [J].

Park, C ;

Choi, YY .

ASTROPHYSICAL JOURNAL, 2005, 635 (01) :L29-L32

[32] ON THE POSSIBILITY OF DETERMINING HUBBLES PARAMETER AND THE MASSES OF GALAXIES FROM THE GRAVITATIONAL LENS EFFECT [J].

REFSDAL, S .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1964, 128 (04) :307-310

[33] The evolution and structure of early-type field galaxies: A combined statistical analysis of gravitational lenses [J].

Rusin, D ;

Kochanek, CS .

ASTROPHYSICAL JOURNAL, 2005, 623 (02) :666-682

[34] The velocity dispersion function of early-type galaxies [J].

Sheth, RK ;

Bernardi, M ;

Schechter, PL ;

Burles, S ;

Eisenstein, DJ ;

Finkbeiner, DP ;

Frieman, J ;

Lupton, RH ;

Schlegel, DJ ;

Subbarao, M ;

Shimasaku, K ;

Bahcall, NA ;

Brinkmann, J ;

Ivezic, Z .

ASTROPHYSICAL JOURNAL, 2003, 594 (01) :225-231

[35] An excursion set model of hierarchical clustering: ellipsoidal collapse and the moving barrier [J].

Sheth, RK ;

Tormen, G .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2002, 329 (01) :61-75

[36] First-year Wilkinson Microwave Anisotropy Probe (WMAP) observations:: Determination of cosmological parameters [J].

Spergel, DN ;

Verde, L ;

Peiris, HV ;

Komatsu, E ;

Nolta, MR ;

Bennett, CL ;

Halpern, M ;

Hinshaw, G ;

Jarosik, N ;

Kogut, A ;

Limon, M ;

Meyer, SS ;

Page, L ;

Tucker, GS ;

Weiland, JL ;

Wollack, E ;

Wright, EL .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2003, 148 (01) :175-194

[37]

SPERGEL DN, 2006, ASTROPH0603449

[38] Sloan Digital Sky Survey:: Early data release [J].

Stoughton, C ;

Lupton, RH ;

Bernardi, M ;

Blanton, MR ;

Burles, S ;

Castander, FJ ;

Connolly, AJ ;

Eisenstein, DJ ;

Frieman, JA ;

Hennessy, GS ;

Hindsley, RB ;

Ivezic, Z ;

Kent, S ;

Kunszt, PZ ;

Lee, BC ;

Meiksin, A ;

Munn, JA ;

Newberg, HJ ;

Nichol, RC ;

Nicinski, T ;

Pier, JR ;

Richards, GT ;

Richmond, MW ;

Schlegel, DJ ;

Smith, JA ;

Strauss, MA ;

SubbaRao, M ;

Szalay, AS ;

Thakar, AR ;

Tucker, DL ;

Vanden Berk, DE ;

Yanny, B ;

Adelman, JK ;

Anderson, JE ;

Anderson, SF ;

Annis, J ;

Bahcall, NA ;

Bakken, JA ;

Bartelmann, M ;

Bastian, S ;

Bauer, A ;

Berman, E ;

Böhringer, H ;

Boroski, WN ;

Bracker, S ;

Briegel, C ;

Briggs, JW ;

Brinkmann, J ;

Brunner, R ;

Carey, L .

ASTRONOMICAL JOURNAL, 2002, 123 (01) :485-548

[39] Cosmological parameters from SDSS and WMAP [J].

Tegmark, M ;

Strauss, MA ;

Blanton, MR ;

Abazajian, K ;

Dodelson, S ;

Sandvik, H ;

Wang, XM ;

Weinberg, DH ;

Zehavi, I ;

Bahcall, NA ;

Hoyle, F ;

Schlegel, D ;

Scoccimarro, R ;

Vogeley, MS ;

Berlind, A ;

Budavari, T ;

Connolly, A ;

Eisenstein, DJ ;

Finkbeiner, D ;

Frieman, JA ;

Gunn, JE ;

Hui, L ;

Jain, B ;

Johnston, D ;

Kent, S ;

Lin, H ;

Nakajima, R ;

Nichol, RC ;

Ostriker, JP ;

Pope, A ;

Scranton, R ;

Seljak, U ;

Sheth, RK ;

Stebbins, A ;

Szalay, AS ;

Szapudi, I ;

Xu, YZ ;

Annis, J ;

Brinkmann, J ;

Burles, S ;

Castander, FJ ;

Csabai, I ;

Loveday, J ;

Doi, M ;

Fukugita, M ;

Gillespie, B ;

Hennessy, G ;

Hogg, DW ;

Ivezic, Z ;

Knapp, GR .

PHYSICAL REVIEW D, 2004, 69 (10)

[40] The sloan lens acs survey. II. Stellar populations and internal structure of early-type lens galaxies [J].

Treu, T ;

Koopmans, LV ;

Bolton, AS ;

Burles, S ;

Moustakas, LA .

ASTROPHYSICAL JOURNAL, 2006, 640 (02) :662-672

← 1 2 3 4 5 →