  Superthin galaxies (STs) are edge-on disc galaxies with strikingly high
planar-to-vertical axes ratios of $\sim 10 - 20$ with no bulge component, and
central surface brightness in $B$-band $>$ 23 mag arcsec$^{-2}$ comparable to
low surface brightness galaxies (LSBs). Although STs and LSBs have similar
dynamical, stellar and atomic hydrogen (HI) masses on an average, it is tricky
to conclude if they constitute the same galaxy population, given the edge-on
and face-on orientations of the STs and the LSBs respectively. We
systematically study star formation rate (SFR) in a sample of STs and LSBs
using SED fitting of photometric data in ten bands including GALEX: FUV, NUV,
SDSS: u,g,r,i,z \& 2MASS: J, H, Ks using stellar population synthesis models
employing the publicly-available software MAGPHYS (Multi-Wavelength Analysis of
Galaxy Physical Properties). The estimated median SFRs for LSBs and STs are
$0.4^{+2.2}_{-0.3} $ $M_{\odot}yr^{-1}$ \& $0.2^{+0.9}_{-0.2}$
$M_{\odot}yr^{-1}$ respectively. Our calculations indicate that this deficit in
the SFR of an ST can be attributed to inclination and opacity effects.
Therefore, we conclude that STs and LSBs have equal intrinsic SFR over and
above other physical properties, which possibly implies that STs are just LSBs
seen in edge-on.
