Testing the Dipole Modulation Model in CMBR
  The hemispherical power asymmetry, observed in the CMBR data, has generally
been interpreted in terms of the dipole modulation model for the temperature
fluctuations. Here we point out that this model leads to several predictions,
which can be directly tested in the current data. We suggest tests of the
hemispherical power asymmetry both in real and multipole space. We find a
significant signal of the dipole modulation model in WMAP and PLANCK data with
our tests. The dipole amplitude and direction also agrees, within errors, with
earlier results based on hemispherical analysis in multipole space. We also
find evidence that the effective dipole modulation amplitude increases with the
multipole l in the range l=2-64.
