The first symbiotic stars from the LAMOST survey
  Symbiotic stars are interacting binary systems with the longest orbital
periods. They are typically formed by a white dwarf, a red giant and a nebula.
These objects are natural astrophysical laboratories for studying the evolution
of binaries. Current estimates of the population of Milky Way symbiotic stars
vary from 3000 up to 400000. However, the current census is less than 300. The
Large sky Area Multi-Object fiber Spectroscopic Telescope (LAMOST) survey can
obtain hundreds of thousands of stellar spectra per year, providing a good
opportunity to search for new symbiotic stars. In this work we detect 4 of such
binaries among 4,147,802 spectra released by the LAMOST, of which two are new
identifications. The first is LAMOST J12280490-014825.7, considered to be an
S-type halo symbiotic star. The second is LAMOST J202629.80+423652.0, a D-type
symbiotic star.
