Gravitational lensing constraints on dynamical and coupled dark energy

被引：17
作者：
La Vacca, G. [1 ,2 ]
Colombo, L. P. L. [2 ,3 ,4 ]
机构：
[1] Univ Pavia, Dipartimento Fis Teor & Nucl, I-27100 Pavia, Italy
[2] Ist Nazl Fis Nucl, Sez Milano Bicocca, Rome, Italy
[3] Univ Milano Bicocca, Dipartimento Fis G Occhialini, I-20126 Milan, Italy
[4] Univ So Calif, Dept Phys & Astron, Los Angeles, CA 90089 USA
来源：
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2008年 / 04期
关键词：
dark energy theory; gravitational lensing;
D O I：
10.1088/1475-7516/2008/04/007
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Upcoming weak lensing (WL) surveys can be used to constrain dark energy (DE) properties, namely if tomographic techniques are used to improve their sensitivity. In this work, we use a Fisher matrix technique to compare the power of CMB anisotropy and polarization data with tomographic WL data, in constraining DE parameters. Adding WL data to available CMB data improves the detection of all cosmological parameters, but the impact is really strong when DE - DM coupling is considered, as WL tomography can then succeed to reduce the errors on some parameters by factors > 10.
引用
收藏
页数：22
相关论文
共 77 条
  • [51] An efficient technique to determine the power spectrum from cosmic microwave background sky maps
    Oh, SP
    Spergel, DN
    Hinshaw, G
    [J]. ASTROPHYSICAL JOURNAL, 1999, 510 (02) : 551 - 563
  • [52] OLILVARES G, 2007, ASTROPH07063860
  • [53] First intrinsic anisotropy observations with the cosmic background imager
    Padin, S
    Cartwright, JK
    Mason, BS
    Pearson, TJ
    Readhead, ACS
    Shepherd, MC
    Sievers, J
    Udomprasert, PS
    Holzapfel, WL
    Myers, ST
    Carlstrom, JE
    Leitch, EM
    Joy, M
    Bronfman, L
    May, J
    [J]. ASTROPHYSICAL JOURNAL, 2001, 549 (01) : L1 - L5
  • [54] Measurements of Ω and Λ from 42 high-redshift supernovae
    Perlmutter, S
    Aldering, G
    Goldhaber, G
    Knop, RA
    Nugent, P
    Castro, PG
    Deustua, S
    Fabbro, S
    Goobar, A
    Groom, DE
    Hook, IM
    Kim, AG
    Kim, MY
    Lee, JC
    Nunes, NJ
    Pain, R
    Pennypacker, CR
    Quimby, R
    Lidman, C
    Ellis, RS
    Irwin, M
    McMahon, RG
    Ruiz-Lapuente, P
    Walton, N
    Schaefer, B
    Boyle, BJ
    Filippenko, AV
    Matheson, T
    Fruchter, AS
    Panagia, N
    Newberg, HJM
    Couch, WJ
    [J]. ASTROPHYSICAL JOURNAL, 1999, 517 (02) : 565 - 586
  • [55] COSMOLOGICAL CONSEQUENCES OF A ROLLING HOMOGENEOUS SCALAR FIELD
    RATRA, B
    PEEBLES, PJE
    [J]. PHYSICAL REVIEW D, 1988, 37 (12): : 3406 - 3427
  • [56] Weak gravitational lensing by large-scale structure
    Refregier, A
    [J]. ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, 2003, 41 : 645 - 668
  • [57] REFREGIER A, 2006, ASTROPH0610062
  • [58] Type Ia supernova discoveries at z > 1 from the Hubble Space Telescope:: Evidence for past deceleration and constraints on dark energy evolution
    Riess, AG
    Strolger, LG
    Tonry, J
    Casertano, S
    Ferguson, HC
    Mobasher, B
    Challis, P
    Filippenko, AV
    Jha, S
    Li, WD
    Chornock, R
    Kirshner, RP
    Leibundgut, B
    Dickinson, M
    Livio, M
    Giavalisco, M
    Steidel, CC
    Benítez, T
    Tsvetanov, Z
    [J]. ASTROPHYSICAL JOURNAL, 2004, 607 (02) : 665 - 687
  • [59] Observational evidence from supernovae for an accelerating universe and a cosmological constant
    Riess, AG
    Filippenko, AV
    Challis, P
    Clocchiatti, A
    Diercks, A
    Garnavich, PM
    Gilliland, RL
    Hogan, CJ
    Jha, S
    Kirshner, RP
    Leibundgut, B
    Phillips, MM
    Reiss, D
    Schmidt, BP
    Schommer, RA
    Smith, RC
    Spyromilio, J
    Stubbs, C
    Suntzeff, NB
    Tonry, J
    [J]. ASTRONOMICAL JOURNAL, 1998, 116 (03) : 1009 - 1038
  • [60] RUDD DH, 2007, ASTROPH0703741
12345678