A catalogue of H$\alpha$ emission-line point sources in the vicinity
  fields of M31 and M33 from the LAMOST survey
  We present a catalogue of 3,305 H$\alpha$ emission-line point sources
observed with the Large Sky Area Multi-Object Fiber Spectroscopic Telescope
(LAMOST) in the vicinity fields of M31 and M33 during September 2011 and
January 2016. The catalogue contains 1,487 emission-line stars, 532
emission-line nebulae including 377 likely planetary nebulae (PNe), 83
H~{\textsc{ii}} regions candidates and 20 possible supernovae remnants (SNRs)
and 1,286 unknown objects. Among them, 24 PN candidates, 19 H~{\sc ii} region
candidates, 10 SNR candidates and 1 symbiotic star candidate are new
discoveries. Radial velocities and fluxes estimated from the H$\alpha$ line and
those quantities of seven other major emission lines including H$\beta$,
[O~{\textsc{iii}}]~$\lambda$4959, [O~{\textsc{iii}}]~$\lambda$5007,
[N~{\textsc{ii}}]~$\lambda$6548, [N~{\textsc{ii}}]~$\lambda$6583,
[S~{\textsc{ii}}]~$\lambda$6717 and [S~{\textsc{ii}}]~$\lambda$6731 lines of
all the catalogued sources yielded from the LAMOST spectra are also presented
in our catalogue. Our catalogue is an ideal starting point to study the
chemistry properties and kinematics of M31 and M33.
