A strong ν̈ − ν̇ correlation in radio pulsars with implications for torque variations
نویسندگان
چکیده
A strong¨ν − ˙ ν correlation in radio pulsars with implications for torque variations ABSTRACT We present an analysis of the spin-down parameters for 131 radio pulsars for which¨ν has been well determined. These pulsars have characteristic ages ranging from 10 3 −10 8 yr and spin periods in the range 0.4–30 s; nearly equal numbers of pulsars havë ν > 0 as¨ν < 0. We find a strong correlation of¨ν with ˙ ν, independent of the sign of¨ν. We suggest that this trend can be accounted for by small, stochastic deviations in the spin-down torque that are directly proportional (in magnitude) to the spin-down torque.
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