LOFAR observations of the mode-switching pulsar B0943+10
Abstract
PSR B0943+10 is an old non-recycled pulsar which for decades has been mostly known for its rapid and spontaneous radio mode switching. Recently, Hermsen et al. (2013) discovered correlated changes in the thermal X-ray emission from the polar cap, thus demonstrating that radio modes are not just a product of the local changes in the radio emission region, but a sign of some global magnetospheric transformation. At about the same time, owing to the commissioning of the new generation of low-frequency radio arrays, the broadband observations at the lowest edge of ionospheric transparency window became available. At these radio frequencies profile morphology and the single-pulse properties of PSR B0943+10's emission become very dynamic, providing details not only about the emission itself, but also about the conditions in the polar gap. Here, I will present the recent results of the LOFAR observations of PSR B0943+10 and discuss their contribution to the multiwavelength picture.
- Publication:
-
Pulsar Astrophysics the Next Fifty Years
- Pub Date:
- August 2018
- DOI:
- 10.1017/S1743921317010365
- arXiv:
- arXiv:1805.10227
- Bibcode:
- 2018IAUS..337...66B
- Keywords:
-
- pulsars: individual (B0943+10);
- telescopes: LOFAR;
- Astrophysics - High Energy Astrophysical Phenomena;
- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- Proceedings of IAU Symposium 337 - 50 Years of Pulsars. Text is based on Bilous 2017 (arXiv:1710.05621) and Bilous et al. 2014 (arXiv:1408.5272)