Pulsar Kick and Asymmetric Iron Velocity Distribution in SN 1987A
نویسندگان
چکیده
منابع مشابه
Pulsar Kick and Asymmetric Iron Velocity Distribution in SN 1987A
We have investigated the relation of the direction of the momentum among the matter, neutrino, and proto-neutron star in a collapse-driven supernova in order to discuss the pulsar kick. In particular, we have investigated the effects of the pulsar motion on the explosion, which are neglected in the previous study. As a result, we have concluded that the direction of the total momentum of the ma...
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We analyse the sample of pulsar proper motions, taking detailed account of the selection effects of the original surveys. We treat censored data using survival statistics. From a comparison of our results with Monte Carlo simulations, we find that the mean birth speed of a pulsar is ∼ 250 − 300 km s, rather than the 450 km s found by Lyne & Lorimer (1994). The resultant distribution is consiste...
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We assume that all the energy loss of the putative pulsar in SN 1987A would contribute to the luminosity of the remnant, which acts like a bolometer. The bolometric luminosity of SN 1987A provides an upper bound on the pulsar’s rate of energy loss. An isolated pulsar spinning down by magnetic dipole radiation alone with initial rotation periods of 10–30 ms, as extrapolated for galactic young pu...
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Neutron stars formed in Type II supernovae are likely to be initially obscured by late-time fallback. Although much of the late-time fallback is quickly accreted via neutrino cooling, some material remains on the neutron star, forming an atmosphere which slowly accretes through photon emission. In this paper, we derive structure equations of the fallback atmosphere and present results of one-di...
متن کاملar X iv : a st ro - p h / 99 11 07 7 v 1 5 N ov 1 99 9 1 Pulsar Kick and Asymmetric Iron Velocity Distribution in SN 1987
We have investigated the relation of the direction of the momentum among the matter, neutrino, and proto-neutron star in a collapse-driven supernova in order to discuss the pulsar kick. In particular, we have investigated the effects of the pulsar motion on the explosion, which are neglected in the previous study. As a result, we have concluded that the direction of the total momentum of the ma...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 2000
ISSN: 0033-068X,1347-4081
DOI: 10.1143/ptp.103.713