A Spin-down Power Threshold for Pulsar Wind Nebula Generation?
نویسندگان
چکیده
منابع مشابه
A Spin-down Power Threshold for Pulsar Wind Nebula Generation?
A systematic X-ray survey of the most energetic rotationpowered pulsars known, based on spin-down energy loss rate, Ė = Iωω̇, shows that all energetic pulsars with Ė > Ėc ≈ 3.4 × 10 36 erg s are X-ray bright, manifest a distinct pulsar wind nebula (PWN), and are associated with a supernova event, either historically or via a thermal remnant, with over half residing in shell-like supernova remnan...
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A multipole spin-down equation based on a monopolar term is derived from the general expression ν̇ = −f(ν, t) and used to study pulsar evolution. We show that the time-independent version of such equation cannot reproduce the observed properties of pulsars and conclude that there is no equation of the form ν̇ = −f(ν) consistent with the P − Ṗ diagram and braking index measurements. We explore the...
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We have examined Chandra observations of the recently discovered X-ray thread G0.13-0.11 in the Galactic center Radio Arc region. Part of the Chandra data was studied by Yusef-Zadeh, Law, & Wardle (2002), who reported the detection of 6.4-keV line emission in this region. We find, however, that this line emission is not associated with G0.13-0.11. The X-ray spectrum of G0.13-0.11 is well charac...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 2004
ISSN: 0074-1809
DOI: 10.1017/s0074180900181045