In this paper we determine the dipole in the Pantheon+ data. We find that,
while its amplitude roughly agrees with the dipole found in the cosmic
microwave background which is attributed to the motion of the solar system with
respect to the cosmic rest frame, the direction is different at very high
significance. While the amplitude depends on the lower redshift cutoff, the
direction is quite stable. For redshift cuts of order $z_cut 0.05$
and higher, the dipole is no longer detected with high statistical significant.
An important rôle seems to be played by the redshift corrections for peculiar
velocities.
%0 Generic
%1 sorrenti2022dipole
%A Sorrenti, Francesco
%A Durrer, Ruth
%A Kunz, Martin
%D 2022
%K tifr
%T The Dipole of the Pantheon+SH0ES Data
%U http://arxiv.org/abs/2212.10328
%X In this paper we determine the dipole in the Pantheon+ data. We find that,
while its amplitude roughly agrees with the dipole found in the cosmic
microwave background which is attributed to the motion of the solar system with
respect to the cosmic rest frame, the direction is different at very high
significance. While the amplitude depends on the lower redshift cutoff, the
direction is quite stable. For redshift cuts of order $z_cut 0.05$
and higher, the dipole is no longer detected with high statistical significant.
An important rôle seems to be played by the redshift corrections for peculiar
velocities.
@misc{sorrenti2022dipole,
abstract = {In this paper we determine the dipole in the Pantheon+ data. We find that,
while its amplitude roughly agrees with the dipole found in the cosmic
microwave background which is attributed to the motion of the solar system with
respect to the cosmic rest frame, the direction is different at very high
significance. While the amplitude depends on the lower redshift cutoff, the
direction is quite stable. For redshift cuts of order $z_{\rm cut} \simeq 0.05$
and higher, the dipole is no longer detected with high statistical significant.
An important r\^ole seems to be played by the redshift corrections for peculiar
velocities.},
added-at = {2022-12-21T10:35:50.000+0100},
author = {Sorrenti, Francesco and Durrer, Ruth and Kunz, Martin},
biburl = {https://www.bibsonomy.org/bibtex/295a0aa1d769d772dce557e9a93bc35e0/citekhatri},
description = {The Dipole of the Pantheon SH0ES Data},
interhash = {5772a4acf2942d36a611191fd814678c},
intrahash = {95a0aa1d769d772dce557e9a93bc35e0},
keywords = {tifr},
note = {cite arxiv:2212.10328Comment: 17 pages, 9 figures},
timestamp = {2022-12-21T10:35:50.000+0100},
title = {The Dipole of the Pantheon+SH0ES Data},
url = {http://arxiv.org/abs/2212.10328},
year = 2022
}