Pulsars are known to emit non-thermal radio emission that is generally a power-law function of frequency. In some cases, a turnover is seen at frequencies around 100 MHz. Kijak et al. have reported the presence of a new class of ‘Gigahertz Peaked Spectrum’ (GPS) pulsars that show spectral turnovers at frequencies around 1 GHz. We apply a model based on free–free thermal absorption to explain these turnovers in terms of surrounding material such as the dense environments found in H
Digital Commons Citation
Rajwade, K.; Lorimer, D. R.; and Anderson, L. D., "On gigahertz spectral turnovers in pulsars" (2016). Faculty Scholarship. 257.
Rajwade, K.., Lorimer, D. R.., & Anderson, L. D.. (2016). On Gigahertz Spectral Turnovers In Pulsars. Monthly Notices of the Royal Astronomical Society, 455(1), 493-498. http://doi.org/10.1093/mnras/stv2334