SIMBAD references

2017ApJ...842...23Y - Astrophys. J., 842, 23-23 (2017/June-2)

Tight constraint on photon mass from pulsar spindown.


Abstract (from CDS):

Pulsars are magnetized rotating compact objects. They spin down due to magnetic dipole radiation and wind emission. If a photon has nonzero mass, the spin-down rate will be lower than in the zero-mass case. We show that an upper limit of the photon mass, i.e., mγ h/Pc2, may be placed if a pulsar with period P is observed to spin down. Recently, a white dwarf (WD)-M dwarf binary, AR Scorpii, was discovered to emit pulsed broadband emission. The spin-down luminosity of the WD can comfortably power non-thermal radiation from the system. Applying our results to the WD pulsar with P = 117 s, we obtain a stringent upper limit of the photon mass between mγ 6.3×10–50 g, assuming a vacuum dipole spindown, and mγ 9.6×10–50 g, assuming spindown due to a fully developed pulsar wind.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): pulsars: general - stars: winds, outflows - white dwarfs - white dwarfs

Simbad objects: 3

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