Our Peculiar Motion Inferred from Number Counts of Mid Infra Red AGNs
  and the Discordance Seen with the Cosmological Principle
  The dipole anisotropy in the Cosmic Microwave Background Radiation (CMBR) has
given a peculiar velocity vector 370 km s$^{-1}$ along
$l=264^\circ,b=48^\circ$. However, some other dipoles, for instance, from the
number counts, sky brightness or redshift distributions in large samples of
distant Active Galactic Nuclei (AGNs), have yielded values of the peculiar
velocity many times larger than that from the CMBR, though surprisingly, in all
cases the directions agreed with the CMBR dipole. Here we determine our
peculiar motion from a sample of ~0.28 million AGNs, selected from the Mid
Infra Red Active Galactic Nuclei (MIRAGN) sample comprising more than a million
sources. From this, we find a peculiar velocity, which is more than four times
the CMBR value, although the direction seems to be within $\sim 2\sigma$ of the
CMBR dipole. A genuine value of the solar peculiar velocity should be the same
irrespective of the data or the technique employed to estimate it. Therefore,
such discordant dipole amplitudes, might mean that the explanation for these
dipoles, including that of the CMBR, might in fact be something else. But, the
observed fact that the direction in all cases, is the same, though obtained
from completely independent surveys using different instruments and techniques,
by different sets of people employing different computing routines, might
nonetheless indicate that these dipoles are not merely due to some systematics,
otherwise why would they all be pointing along the same direction. It might
instead suggest a preferred direction in the Universe, implying a genuine
anisotropy, which would violate the Cosmological Principle, the core of the
modern cosmology.
