Investigating the Lyman photon escape in local starburst galaxies with
  the Cosmic Origins Spectrograph
  We present a study of 7 star-forming galaxies from the Cosmic Evolution
Survey (COSMOS) observed with the Cosmic Origins Spectrograph (COS) on board
the Hubble Space Telescope (HST). The galaxies are located at relatively low
redshifts, $z\sim$0.3, with morphologies ranging from extended and disturbed to
compact and smooth. To complement the HST observations we also analyze
observations taken with the VIMOS spectrograph on the Very Large Telescope
(VLT). In our galaxy sample we identify three objects with double peak
Lyman-$\alpha$ profiles similar to those seen in Green Pea compact galaxies and
measure peak separations of 655, 374, and 275 km s$^{-1}$. We measure
Lyman-$\alpha$ escape fractions with values ranging between 5-13\%. Given the
low flux levels in the individual COS exposures we apply a weighted stacking
approach to obtain a single spectrum. From this COS combined spectrum we infer
upper limits for the absolute and relative Lyman continuum escape fractions of
$f_{\rm abs}(\rm LyC)$ = 0.4$^{+10.1}_{-0.4}$\% and $f_{\rm res}(\rm LyC)$ =
1.7$^{+15.2}_{-1.7}$\%, respectively. Finally, we find that most of these
galaxies have moderate UV and optical SFRs (SFRs $\lesssim$ 10 M$_{\odot}$
yr$^{-1}$).
