J/AZh/94/598 Magnetic fields of radio pulsars (Nikitina+, 2017)
Magnetic fields of radio pulsars.
Nikitina E.B., Malov I.F.
<Astron. Zh. 94, 598 (2017)>
=2017ARep...61..591N 2017ARep...61..591N
=2017AZh....94..598N 2017AZh....94..598N (SIMBAD/NED BibCode)
ADC_Keywords: Pulsars ; Radio sources
Abstract:
The mechanism of magnetodipole braking of radio pulsars is used to
calculate new values of the surface magnetic fields of neutron stars.
The angles β between the spin axes and magnetic moments of the
neutron stars were estimated for 376 radio pulsars using three
different methods. It is shown that small inclinations of magnetic
axes dominate. The equatorial magnetic fields for the considered
sample of pulsars are calculated using the β values obtained. As a
rule, these magnetic fields are a factor of a few higher than the
corresponding values in known catalogs.
Description:
Some methods for calculations of the angle β between rotation and
magnetic axes were applied to obtain the values of β for 376
radio pulsars.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 41 376 The angles β (angle between the rotation
axis and the magnetic moment) in degrees
table2.dat 58 324 Equatorial magnetic fields of pulsars with
small differences in their beta estimates
table3.dat 58 51 Equatorial magnetic fields of pulsars with
large differences in their beta estimates
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See also:
B/psr : ATNF Pulsar Catalogue (Manchester+, 2005)
J/AZh/88/22 : Angles rotation/magnetic moment in pulsars (Malov+, 2011)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- No Sequential number
5- 14 A10 --- Name Pulsar name (JHHMM+DDMM)
16- 17 I2 deg beta1-10cm ?=- beta angle at 10cm with Malov & Nikitina,
2011, Cat. J/AZh/88/22 a method
19- 20 I2 deg beta1-20cm ?=- beta angle at 20cm with Malov & Nikitina,
2011, Cat. J/AZh/88/22 a method
22- 23 I2 deg beta1-30cm ?=- beta angle at 30cm with Malov & Nikitina,
2011, Cat. J/AZh/88/22 a method
25- 26 I2 deg beta2-10cm ?=- beta angle at 10cm with this paper
Eq. (13) method
28- 29 I2 deg beta2-20cm ?=- beta angle at 20cm with this paper
Eq. (13) method
31- 32 I2 deg beta2-30cm ?=- beta angle at 30cm with this paper
Eq. (13) method
34- 35 I2 deg beta3-30cm+ ?=- beta angle at 30cm, C>0 with this paper
Eq. (14)-(18) method (1)
37- 38 I2 deg beta3-30cm- ?=- beta angle at 30cm, C<0 with this paper
Eq. (14)-(18) method (1)
40- 41 I2 deg Resulting mean beta angle value
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Note (1): Where C is the maximum derivative of the polarization angle with
respect to longitude.
C=(dψ/dφ)max=sinβ/[sin(ζ-β)],
where zeta is the angle between the line of sight and the rotation axis.
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Byte-by-byte Description of file: table2.dat table3.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- No Sequential number
5- 14 A10 --- Name Pulsar name (JHHMM+DDMM)
16- 23 F8.6 s P Period
25- 33 E9.3 --- dP/dt Period derivative
34- 35 I2 deg Mean beta value
37- 44 E8.3 gauss Bcalc Calculated magnetic field
46- 53 E8.3 gauss Bcat Magnetic field from ATNF Pulsar Catalogue
(Manchester et al, 2005, Cat. B/psr)
55- 58 F4.1 --- Bcalc/Bcat Calculated to catalog magnetic field ratio
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 17-Jul-2017