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We present the timing and spectral studies of RX J0209.6-7427 during its rare2019 outburst using observations with the Soft X-ray Telescope (SXT) and LargeArea X-ray Proportional Counter (LAXPC) instruments on the AstroSat satellite.Pulsations having a periodicity of 9.29 s were detected for the first time bythe NICER mission in the 0.2-10 keV energy band and, as reported here, byAstroSat over a broad energy band covering 0.3-80 keV. The pulsar exhibits arapid spin-up during the outburst. Energy resolved folded pulse profiles aregenerated in several energy bands in 3-80 keV. To the best of our knowledgethis is the first report of the timing and spectral characteristics of this Bebinary pulsar in hard X-rays. There is suggestion of evolution of the pulseprofile with energy. The energy spectrum of the pulsar is determined and fromthe best fit spectral values, the X-ray luminosity of RX J0209.6-7427 isinferred to be ${1.6}\times 10^{39}$ ergs s$^{-1}$. Our timing and spectralstudies suggest that this source has features of an ultraluminous X-ray pulsarin the Magellanic Bridge. Details of the results are presented and discussed interms of the current ideas.

Study of Recent outburst in the Be/X-ray binary RX J0209.6-7427 with AstroSat: A new ultraluminous X-ray pulsar in the Magellanic Bridge?