Why are Neutron Star Transients Brigher in Quiescence than Black Holes

Quiescent Xray transients provide a superb laboratory for investigatingthe properties of the residual accretion flow onto their neutron star (NS)and black hole (BH) compact objects. It has been claimed that thepresence of an event horizon causes a significant difference in theirquiescent behaviour. However, current results are equivocal as there are avariety of factors which can complicate the NS behaviour as well asdetermining whether their mass transfer rates really are similar. It istherefore essential to observe NS systems with greater sensitivity. Ourproposal is to observe 4 NS transients in quiescence, in order to quantifythe luminosity difference and properties of these two classes of SXTs. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]