  We consider a relativistic, degenerate, electron gas under the influence of a
strong magnetic field, which describes magnetized white dwarfs. Landau
quantization changes the density of states available to the electrons, thus
modifying the underlying equation of state. We obtain the mass-radius relations
for such white dwarfs and show that it is possible to have magnetized white
dwarfs with a mass significantly greater than the Chandrasekhar limit in the
range 2.3 - 2.6 M_sun. Recent observations of peculiar type Ia supernovae - SN
2006gz, SN 2007if, SN 2009dc, SN 2003fg - seem to suggest
super-Chandrasekhar-mass white dwarfs with masses up to 2.4 - 2.8 M_sun, as
their most likely progenitors and interestingly our results lie within the
observational limits.
