Unveiling an old disk around a massive young leaking blueberry in
  SDSS-IV MaNGA
  Extreme emission-line galaxies, such as blue compact dwarfs (BCDs), Green
Peas (GPs) and blueberries in the local Universe are the potential candidates
to understand the nature of galaxies that re-ionized the early Universe. Being
low-mass, metal-poor starburst systems they are understood as local analogs of
the high redshift Lyman Continuum (LyC) and Lyman-${\alpha}$ emitters (LAEs).
Even with their proximity to us, we know little about their spatially resolved
properties, most of the blueberries and GPs are indeed compact, remain
unresolved. Here, we report the detection of a disk-like lower-surface
brightness (LSB) stellar host with very old population around a blueberry LAE
system using broad i-band imaging and integral field spectroscopic data from
SDSS and SDSS-IV MaNGA surveys, respectively. The LSB stellar host is
structurally similar to that observed around15 local starburst BCDs.
Furthermore, the kinematics of the studied blueberry source bear sign of
misalignment between the gas and stellar components. Our findings establish an
intriguing thread connecting the blueberry and an LSB disk with old stellar
population, and suggest that blueberries and their high redshift counterparts
such as GPs do not represent peculiar cases of dwarf galaxy evolution. In fact,
with respect to the structural properties of their host galaxies, they are
compatible with a common evolutionary track of the main population of local
BCDs.
