Conveners
Parallel 6: Pulsars II
- Andrey Timokhin (University of Zielona Góra)
The $P\dot P$ diagram is a cornerstone of pulsar research. It is used in multiple ways for classifying the population, understanding evolutionary tracks, identifying issues in our theoretical reach, and more. However, we have been looking at the same plot for more than five decades. A fresh appraisal may be healthy. Is the $P\dot P$-diagram the most useful or complete way to visualize the...
Observations with the Fermi Large Area Telescope (LAT) of the gamma-ray source 4FGL J1702.7-5655, previously classified as a candidate millisecond pulsar, show highly-significant modulation at a period of about 6 hours. The folded light curve shows the presence of narrow eclipses and this is thus likely to be orbital modulation in a redback binary system. An examination of the long-term...
AR Sco is a binary system that contains both a white and red dwarf. The spin rate of the white dwarf has been observed to slow down with time, analogous to rotation-powered radio pulsars; it has thus been dubbed a "white dwarf pulsar". We have constructed a sophisticated emission model, solving the particle dynamics from first principles, including a generalized radiation reaction force, and...
Joint multiband model fits to observed pulsar light curves (LCs) hold the potential to yield tight constraints on a variety of pulsar parameters (e.g., the magnetic inclination $\alpha$; compared to single-band fits) for a variety of pulsars. This potential is arguably yet unrealised in many cases, though, typically due to a substantial imbalance across wavebands in the observed LCs'...
The Fermi Gamma ray Burst Monitor (GBM) is a unique instrument that offers the largest instantaneous field of view of any hard X-ray instrument currently in operation. This capability along with excellent timing resolution, makes it very successful at detecting rare transient events as well as providing long integration times for pulsed signal extraction. Even though GBM has a relatively...
