Discovery of X-ray pulsations from "next Geminga" - PSR J1836+5925

Abstract

We report the X-ray pulsation of ~173.3 ms for the "next Geminga", PSR J1836+5925, with recent XMM-Newton investigations. The X-ray periodicity is consistent wtih the gamma-ray ephemeris at the same epoch. The X-ray folded light curve has a sinusoidal structure which is different from the double-peaked gamma-ray pulse profile. We have also analysed the X-ray phase-averaged spectra which shows the X-ray emission from PSR J1836+5925 is thermal dominant. This suggests the X-ray pulsation mainly originates from the modulated hot spot on the stellar surface.

7 pages, 3 figures, 1 table, accepted for publication in ApJ Letter

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• Detection of 16 Gamma-Ray Pulsars Through Blind Frequency Searches Using the Fermi LAT
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Cited by in corpus (5)

• The soft gamma-ray pulsar population: an high-energy overview
• Spectral characterization of the non-thermal X-ray emission of gamma-ray pulsars
• Gamma-ray emission from PSR J0007+7303 using 7 years of Fermi Large Area Telescope observations
• Observational connection of non-thermal X-ray emission from pulsars with their timing properties and thermal emission
• AstroSat-CZTI as a hard X-ray Pulsar Monitor