Can I read Polarized Multiwavelength Emission from Pulsar Wind - Accretion Disk Interaction in a Transitional Millisecond Pulsar on EtoBox?

Polarized Multiwavelength Emission from Pulsar Wind - Accretion Disk Interaction in a Transitional Millisecond Pulsar by Baglio, M. C.; Zelati, F. Coti; Di Marco, A.; La Monaca, F.; Papitto, A.; Hughes, A. K.; Campana, S.; Russell, D. M.; Torres, D. F.; Carotenuto, F.; Covino, S.; de Martino, D.; Giarratana, S.; Motta, S. E.; Alabarta, K.; D'Avanzo, P.; Illiano, G.; Messa, M. M.; Zanon, A. Miraval; Rea, N. is a scholarly article available to read on EtoBox.

What is Polarized Multiwavelength Emission from Pulsar Wind - Accretion Disk Interaction in a Transitional Millisecond Pulsar about?

Transitional millisecond pulsars (tMSPs) bridge the evolutionary gap between accreting neutron stars in low-mass X-ray binaries and millisecond radio pulsars. These systems exhibit a unique subluminous X-ray state characterized by the presence of an accretion disk and rapid switches between high and low X-ray emission modes. The high mode features coherent millisecond pulsations spanning from the X-ray to the optical band. We present multiwavelength polarimetric observations of the tMSP PSR J1023+0038 aimed at conclusively identifying the physical mechanism powering its emission in the subluminous X-ray state. During the high mode, we detect polarized emission in the 2-6 keV energy range, with a polarization degree of 12% +/- 3% and a polarization angle of -2deg +/- 9deg (1sigma) measured counterclockwise from the North celestial pole towards East. At optical wavelengths, we find a polarization degree of 1.41% +/- 0.04% and a polarization angle aligned with that in the soft X-rays, suggesting a common physical mechanism operating across these bands. Remarkably, the polarized flux spectrum matches the pulsed emission spectrum from optical to X-rays. The polarization properties diffe

Author

Baglio, M. C.; Zelati, F. Coti; Di Marco, A.; La Monaca, F.; Papitto, A.; Hughes, A. K.; Campana, S.; Russell, D. M.; Torres, D. F.; Carotenuto, F.; Covino, S.; de Martino, D.; Giarratana, S.; Motta, S. E.; Alabarta, K.; D'Avanzo, P.; Illiano, G.; Messa, M. M.; Zanon, A. Miraval; Rea, N.

Published

2024

Language

EN