A local void and the accelerating Universe

被引：154

作者：

Tomita, K ^{[1
]}

机构：

[1] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2001年 / 326卷 / 01期

关键词：

cosmology : observations; large-scale structure of Universe;

D O I：

10.1046/j.1365-8711.2001.04597.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Corresponding to the recent observational claims that we are in a local void (an underdense region) on scales of 200-300 Mpc, the magnitude-redshift relation in a cosmological model with a local void is investigated. It is already evident that the accelerating behaviour of high-z supernovae can be explained in this model, because the local void plays a role similar to the positive cosmological constant. In this paper the dependence of the behaviour on the gaps of cosmological parameters in the inner (low-density) region and the outer (high-density) region, the radius of the local void, and the clumpiness parameter is studied and its implications are discussed.

引用

页码：287 / 292

页数：6

共 40 条

[21]

NAKAMURA TT, 1995, ASTROPHYS J, V447, pL65, DOI 10.1086/309580

[22] Measurements of Ω and Λ from 42 high-redshift supernovae [J].

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 .

ASTROPHYSICAL JOURNAL, 1999, 517 (02) :565-586

[23]

PHILLIPS LA, 1998, ASTROPH9802352

[24] Gravitational lensing of distant supernovae in cold dark matter universes [J].

Porciani, C ;

Madau, P .

ASTROPHYSICAL JOURNAL, 2000, 532 (02) :679-693

[25] Observational evidence from supernovae for an accelerating universe and a cosmological constant [J].

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 .

ASTRONOMICAL JOURNAL, 1998, 116 (03) :1009-1038

[26] Is there an indication of evolution of type Ia supernovae from their rise times? [J].

Riess, AG ;

Filippenko, AV ;

Li, WD ;

Schmidt, BP .

ASTRONOMICAL JOURNAL, 1999, 118 (06) :2668-2674

[27] The case for an accelerating universe from supernovae [J].

Riess, AG .

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 2000, 112 (776) :1284-1299

[28] The High-Z Supernova Search: Measuring cosmic deceleration and global curvature of the universe using Type IA supernovae [J].

Schmidt, BP ;

Suntzeff, NB ;

Phillips, MM ;

Schommer, RA ;

Clocchiatti, A ;

Kirshner, RP ;

Garnavich, P ;

Challis, P ;

Leibundgut, B ;

Spyromilio, J ;

Riess, AG ;

Filippenko, AV ;

Hamuy, M ;

Smith, RC ;

Hogan, C ;

Stubbs, C ;

Diercks, A ;

Reiss, D ;

Gilliland, R ;

Tonry, J ;

Maza, J ;

Dressler, A ;

Walsh, J ;

Ciardullo, R .

ASTROPHYSICAL JOURNAL, 1998, 507 (01) :46-63

[29]

Schneider P, 1992, Gravitational Lenses

[30]

Shectman SA, 1996, ASTROPHYS J, V470, P172, DOI 10.1086/177858

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