Accreting millisecond NS transients in quiescence: the case of IGR J0029+5934

IGR 0029+5934 is the 6th transient accreting millisecond Xray pulsar (TAMP)discovered. In outburst and in quiescence TAMP are peculiar, showing faintoutbursts, weaker quiescent luminosities and (when detected) lack of the softcomponent usually observed in other quiescent transients. Here we propose toobserve the newly discovered IGR J00291+5934. This source is the fastest TAMPwith a spin period of 599 Hz (and an orbital period of 2.5 hr). This source hasbeen observed in quiescence following during its return to quiescence thank to aChandra DDT proposal. These observations in quiescence found the source atdifferent luminosity levels. Here we ask for three observations to investigatethis variability, aiming at disentangling power law versus black body variations. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]