Cosmological constraints from type ia supernovae peculiar velocity measurements

被引：80

作者：

Gordon, C. ^{[1
]}

Land, K. ^{[1
]}

Slosar, A. ^{[1
]}

机构：

[1] DWB, Oxford Astrophys Phys, Oxford OX1 3RH, England

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.99.081301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We detect the correlated peculiar velocities of nearby type Ia supernovae (SNe), while highlighting an error in some of the literature. We find sigma(8)=0.79 +/- 0.22 from SNe, and examine the potential of this method to constrain cosmological parameters in the future. We demonstrate that a survey of 300 low-z SNe (such as the nearby SNfactory) will underestimate the errors on w by similar to 35% if the coherent peculiar velocities are not included.

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页数：4

相关论文

共 38 条

[11]

Dodelson S., 2003, MODERN COSMOLOGY

[12] Final results from the Hubble Space Telescope key project to measure the Hubble constant [J].

Freedman, WL ;

Madore, BF ;

Gibson, BK ;

Ferrarese, L ;

Kelson, DD ;

Sakai, S ;

Mould, JR ;

Kennicutt, RC ;

Ford, HC ;

Graham, JA ;

Huchra, JP ;

Hughes, SMG ;

Illingworth, GD ;

Macri, LM ;

Stetson, PB .

ASTROPHYSICAL JOURNAL, 2001, 553 (01) :47-72

[13] ON THE PATTERN OF PERTURBATIONS OF THE HUBBLE FLOW [J].

GORSKI, K .

ASTROPHYSICAL JOURNAL, 1988, 332 (01) :L7-L11

[14] AN ESTIMATE OF THE VELOCITY CORRELATION TENSOR - COSMOLOGICAL IMPLICATIONS [J].

GROTH, EJ ;

JUSZKIEWICZ, R ;

OSTRIKER, JP .

ASTROPHYSICAL JOURNAL, 1989, 346 (02) :558-565

[15]

HAMUY M, ASTROPH0512039

[16]

HANNESTAD S, ASTROPH07050979

[17]

HAUGBOELLE T, ASTROPH0612137

[18] Correlation properties of the kinematic Sunyaev-Zel'dovich effect and implications for dark energy [J].

Hernandez-Monteagudo, Carlos ;

Verde, Licia ;

Jimenez, Raul ;

Spergel, David N. .

ASTROPHYSICAL JOURNAL, 2006, 643 (02) :598-615

[19] Correlated fluctuations in luminosity distance and the importance of peculiar motion in supernova surveys [J].

Hui, Lam ;

Greene, Patrick B. .

PHYSICAL REVIEW D, 2006, 73 (12)

[20] Improved distances to type Ia supernovae with multicolor light-curve shapes: MLCS2k2 [J].

Jha, Saurabh ;

Riess, Adam G. ;

Kirshner, Robert P. .

ASTROPHYSICAL JOURNAL, 2007, 659 (01) :122-148

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