Speaker
Description
Transitional binaries are accreting pulsars observed in both Low Mass X-ray binary (LMXB) and Millisecond Radio Pulsar (MSP) phase.
They are considered the ”smoking gun" of the so-called recycling scenario, first proposed in the 70s to describe the acceleration of radio pulsars to millisecond periods.
They alternatively emit their pulsation in radio or X-rays depending on the accretion phase they are in. Polarimetry measurements of the systems in both states will yield a better determination of the magnetic field at the disk edge in order to study the centrifugal inhibition of accretion of a peculiar propeller state for these systems.
We examine the case of the three known transitional systems for which the combination of radio observations with the Sardinia Radio Telescope (SRT) and the Imaging X-ray Polarimetry Explorer (IXPE) will address a number of unresolved questions on these intriguing objects and on neutron star evolution.
We present the results of simulations which show the feasibility of the expected goals within IXPE observing cycles.
| Affiliation | INAF - Osservatorio Astronomico di Cagliari |
|---|---|
| Topic | Multi-messenger and transient astronomy |
