Books
Biemond, Jacob
The origin of the magnetic field of pulsars and the gravitomagnetic theory. Book
Nova Science Publishers, New York, 2007, ISBN: 1594545677.
@book{citeulike:13266189,
title = {The origin of the magnetic field of pulsars and the gravitomagnetic theory.},
author = {Jacob Biemond},
editor = {J A Lowry},
url = {http://books.google.nl/books?id=mo47g5aVlvUC&lpg=PP1&dq=isbn%3A1594545677&hl=nl&pg=PA25#v=onepage&q&f=false},
isbn = {1594545677},
year = {2007},
date = {2007-01-01},
booktitle = {Trends in pulsar research},
pages = {25--52},
publisher = {Nova Science Publishers},
address = {New York},
chapter = {2},
abstract = {Many authors consider a gravitational origin of the magnetic field of celestial bodies. In this chapter the validity of the so-called Wilson Blackett formula for pulsars is investigated. This formula predicting a dipolar magnetic field for all rotating bodies has previously been deduced from general relativity, e.g., by application of a special interpretation of the gravitomagnetic theory. Other consequences from this theory will also be considered in this chapter.
First, the standard quadrupolar charge density and a monopolar charge for pulsars are derived from the gravitomagnetic theory. In addition, contributions to the total magnetic dipole moment from moving charge are deduced. It appears that these contributions may enforce or weaken the basic magnetic dipole moment from gravitomagnetic origin. Many of these results also result from the so-called ” dome and torus” model for pulsars. A tentative extension of this model is given, in order to ensure charge neutrality of the system pulsar plus surroundings.
The observed magnetic field for fourteen slowly rotating, binary, accreting X-ray pulsars resembles more the gravitomagnetic prediction than the value calculated from the standard magnetic dipole radiation model. At this moment, for five isolated X-ray pulsars such a comparison is difficult, owing to uncertainty in the assignment of the cyclotron lines determining the observed magnetic field.
For a sample of 100 pulsars the averaged (gravito)magnetic field, extracted from the magnetic dipole spin-down model, may be compatible with the gravitomagnetic prediction. Unfortunately, the (gravito)magnetic field itself has not yet directly been measured.
Finally, first and second order braking indices are discussed. It appears that they do not depend on the magnetic field from gravitomagnetic origin.},
keywords = {},
pubstate = {published},
tppubtype = {book}
}
Many authors consider a gravitational origin of the magnetic field of celestial bodies. In this chapter the validity of the so-called Wilson Blackett formula for pulsars is investigated. This formula predicting a dipolar magnetic field for all rotating bodies has previously been deduced from general relativity, e.g., by application of a special interpretation of the gravitomagnetic theory. Other consequences from this theory will also be considered in this chapter.
First, the standard quadrupolar charge density and a monopolar charge for pulsars are derived from the gravitomagnetic theory. In addition, contributions to the total magnetic dipole moment from moving charge are deduced. It appears that these contributions may enforce or weaken the basic magnetic dipole moment from gravitomagnetic origin. Many of these results also result from the so-called ” dome and torus” model for pulsars. A tentative extension of this model is given, in order to ensure charge neutrality of the system pulsar plus surroundings.
The observed magnetic field for fourteen slowly rotating, binary, accreting X-ray pulsars resembles more the gravitomagnetic prediction than the value calculated from the standard magnetic dipole radiation model. At this moment, for five isolated X-ray pulsars such a comparison is difficult, owing to uncertainty in the assignment of the cyclotron lines determining the observed magnetic field.
For a sample of 100 pulsars the averaged (gravito)magnetic field, extracted from the magnetic dipole spin-down model, may be compatible with the gravitomagnetic prediction. Unfortunately, the (gravito)magnetic field itself has not yet directly been measured.
Finally, first and second order braking indices are discussed. It appears that they do not depend on the magnetic field from gravitomagnetic origin.
First, the standard quadrupolar charge density and a monopolar charge for pulsars are derived from the gravitomagnetic theory. In addition, contributions to the total magnetic dipole moment from moving charge are deduced. It appears that these contributions may enforce or weaken the basic magnetic dipole moment from gravitomagnetic origin. Many of these results also result from the so-called ” dome and torus” model for pulsars. A tentative extension of this model is given, in order to ensure charge neutrality of the system pulsar plus surroundings.
The observed magnetic field for fourteen slowly rotating, binary, accreting X-ray pulsars resembles more the gravitomagnetic prediction than the value calculated from the standard magnetic dipole radiation model. At this moment, for five isolated X-ray pulsars such a comparison is difficult, owing to uncertainty in the assignment of the cyclotron lines determining the observed magnetic field.
For a sample of 100 pulsars the averaged (gravito)magnetic field, extracted from the magnetic dipole spin-down model, may be compatible with the gravitomagnetic prediction. Unfortunately, the (gravito)magnetic field itself has not yet directly been measured.
Finally, first and second order braking indices are discussed. It appears that they do not depend on the magnetic field from gravitomagnetic origin.
Biemond, Jacob
Gravito-magnetism, second enlarged edition Book
Second, 1999, ISBN: 9090077278.
@book{BiemondGravito,
title = {Gravito-magnetism, second enlarged edition},
author = {Jacob Biemond},
url = {http://www.gravito.nl/book/},
isbn = {9090077278},
year = {1999},
date = {1999-01-01},
pages = {1--84},
edition = {Second},
keywords = {},
pubstate = {published},
tppubtype = {book}
}
Biemond, Jacob
Gravito-magnetism, first edition Book
First, 1984, ISBN: 90-9000621-4.
@book{citeulike:13266193,
title = {Gravito-magnetism, first edition},
author = {Jacob Biemond},
isbn = {90-9000621-4},
year = {1984},
date = {1984-01-01},
pages = {1--21},
edition = {First},
keywords = {},
pubstate = {published},
tppubtype = {book}
}