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2015

Probing Cosmological Isotropy With Type IA Supernovae

Bengaly Jr., C. A. P., Bernui, A., Alcaniz, J. S.

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We investigate the validity of the Cosmological Principle by mapping the cosmological parameters $H_0$ and $q_0$ through the celestial sphere.

In our analysis, performed in a low-redshift regime to follow a model-independent approach, we use two compilations of type Ia Supernovae (SNe Ia), namely the Union2.1 and the JLA datasets.
Firstly, we show that the angular distributions for both SNe Ia datasets are statistically anisotropic at high confidence level ($p$-value $<$ 0.0001), in particular the JLA sample.
Then we find that the cosmic expansion and acceleration are mainly of dipolar type, with maximal anisotropic expansion [acceleration] pointing towards $(l,b) \simeq (326^{\circ},12^{\circ})$ [$(l,b) \simeq (174^{\circ},27^{\circ})$], and $(l,b) \simeq (58^{\circ},-60^{\circ})$ [$(l,b) \simeq (225^{\circ},51^{\circ})$] for the Union2.1 and JLA data, respectively.

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Padmanabhan, T., 1993, Structure formation in the Universe, Cambridge Univ. Press, Cambridge
1993
Earlier work this paper cites.
Goodman, J., 1995, PRD, 52, 1821
1995
Earlier work this paper cites.
Riess, A. G., et al
1998
Earlier work this paper cites.
Perlmutter, S., et al
1999
Earlier work this paper cites.
Kolatt, T. S. & Lahav, O., 2001, MNRAS, 323, 859
2001
Earlier work this paper cites.
Eriksen, H. K. et al
2004
Earlier work this paper cites.
Eisenstein, D. J. et al
2005
Earlier work this paper cites.
Górski, K. M. et al
2005
Earlier work this paper cites.
Hutsemékers, D. et al
2005
Earlier work this paper cites.
Simon, J. et al
2005
Earlier work this paper cites.
Bernui, A. et al
2006
Earlier work this paper cites.
Bernui, A. et al
2007
Earlier work this paper cites.
Schwarz, D. J. & Weinhorst, B., 2007, A & A, 474, 717
2007
Earlier work this paper cites.
Bernui, A. et al
2008
Earlier work this paper cites.
Abell, P. A. et al
Original
2009
Earlier work this paper cites.

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