Disentangling Doppler modulation, aberration and the temperature dipole in the CMB

@article{Ferreira2021DisentanglingDM,
  title={Disentangling Doppler modulation, aberration and the temperature dipole in the CMB},
  author={Pedro da Silveira Ferreira and Miguel Quartin},
  journal={Physical Review D},
  year={2021}
}
An observer in relative motion to the Cosmic Microwave Background (CMB) rest frame is sensitive to both aberration and Doppler effects. Both effects introduce similar but non-identical off-diagonal couplings in the spherical harmonic coefficients. The CMB temperature dipole may have additional contributions from an intrinsic component, which in turn produces different aberration and Doppler couplings. Moreover, the standard conversion from intensity measurements into temperature also introduces… Expand
1 Citations

Figures and Tables from this paper

First Constraints on the Intrinsic CMB Dipole and Our Velocity with Doppler and Aberration.
We test the usual hypothesis that the cosmic microwave background (CMB) dipole, its largest anisotropy, is due to our peculiar velocity with respect to the Hubble flow by measuring independently theExpand

References

SHOWING 1-10 OF 46 REFERENCES
Interpreting the CMB aberration and Doppler measurements: boost or intrinsic dipole?
The aberration and Doppler coupling effects of the Cosmic Microwave Background (CMB) were recently measured by the Planck satellite. The most straightforward interpretation leads to a directExpand
First Constraints on the Intrinsic CMB Dipole and Our Velocity with Doppler and Aberration.
We test the usual hypothesis that the cosmic microwave background (CMB) dipole, its largest anisotropy, is due to our peculiar velocity with respect to the Hubble flow by measuring independently theExpand
Non-Gaussianity and CMB aberration and Doppler
The peculiar motion of an observer with respect to the CMB rest frame induces a deflection in the arrival direction of the observed photons (also known as CMB aberration) and a Doppler shift in theExpand
Aberrating the CMB sky: fast and accurate computation of the aberration kernel
It is well known that our motion with respect to the cosmic microwave background (CMB) rest frame introduces a large dipolar CMB anisotropy, with an amplitude∝β = v/c∼ 10 −3 . In addition it shouldExpand
CMB Aberration and Doppler Effects as a Source of Hemispherical Asymmetries
Our peculiar motion with respect to the CMB rest frame represents a preferred direction in the observed CMB sky since it induces an apparent deflection of the observed CMB photons (aberration) and aExpand
Measuring our peculiar velocity on the CMB with high-multipole off-diagonal correlations
Our peculiar velocity with respect to the CMB rest frame is known to induce a large dipole in the CMB. However, the motion of an observer has also the effect of distorting the anisotropies at allExpand
Fast and accurate computation of the aberration kernel for the cosmic microwave background sky
It is well known that our motion with respect to the cosmic microwave background (CMB) rest frame introduces a large dipolar CMB anisotropy, with an amplitude ∝β=v/c∼ 10−3. In addition it should leadExpand
Peculiar velocity effects in high-resolution microwave background experiments
We investigate the impact of peculiar velocity effects due to the motion of the solar system relative to the microwave background (CMB) on high resolution CMB experiments. It is well known that onExpand
Cosmological parameter estimation: impact of CMB aberration
The peculiar motion of an observer with respect to the CMB rest frame induces an apparent deflection of the observed CMB photons, i.e. aberration, and a shift in their frequency, i.e. Doppler effect.Expand
Footprints of Doppler and aberration effects in cosmic microwave background experiments: statistical and cosmological implications
In the frame of the Solar System, the Doppler and aberration effects cause distortions in the form of mode couplings in the cosmic microwave background (CMB) temperature and polarization powerExpand
...
1
2
3
4
5
...