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We propose that two recent intermediate luminosity optical transients(ILOTs), M31LRN 2015 and SN 2015bh (SNHunt 275; PTF 13efv) can be accounted forwith a stellar binary model involving mass transfer that leads to the launchingof jets. We inspect observations of the ILOT M31LRN 2015 and conclude that itcannot be explained by the onset of a common envelope evolution (CEE). Insteadwe conjecture that a $M \simeq 1 - 3 ~\rm{M_\odot}$ main sequence star accreted$\simeq 0.04 ~\rm{M_\odot}$ from the giant star, possibly during a periastronpassage. The main sequence star accreted mass through an accretion disc, thatlaunches jets. The radiation from the disk and the collision of the jets withthe ambient gas can account for the luminosity of the event. Along similarlines, we suggest that the 2013 eruption of SN 2015bh (SNHunt~275) can also beexplained by the High-Accretion-Powered ILOT (HAPI) model. In this case amassive secondary star $M_2 \gtrsim 10 ~\rm{M_\odot}$ accreted $\approx 0.05~\rm{M_\odot}$ from a much more massive and more evolved star during aperiastron passage. If the much more energetic 2015 outburst of SN 2015bh(SNHunt 275) was not a supernova explosion, it might have been a full almosthead-on merger event, or else can be accounted for by a the HAPI-jets model ina very highly eccentric orbit.

Explaining Two Recent Intermediate Luminosity Optical Transients (ILOTs) by a Binary Interaction and Jets