Tuesday, July 15, 2008

At COSPAR: About E15 (tuesday morning)

During the first talk this morning, S. Bhattacharya claimed that the spin frequency of NS must be measured simultaneously with the radius and the mass in order to constrain the EoS. Does anyone has a comment about that ? Is it really crucial to measure the spin frequency ?

Another comment that I would like to make concerns a question following the talk by R. Wijnands. He expressed doubts about the qLMXBs nature of those objects detected in GC since they have been observed in outbursts. I find it a quite interesting opinion, however, I don't think that we should exclude those objects from being quiescent accreting neutron stars. Only a few qLMXBs are known in globular clusters and for a several years only. The quiescent period can last more than 10 years in some cases of known field qLMXBs therefore I believe that time will tell whether or not they are transient objects and if they will go through an outburst stage.