J/AZh/94/598Magnetic fields of radio pulsars (Nikitina+, 2017)

Magnetic fields of radio pulsars. Nikitina E.B., Malov I.F. <Astron. Zh. 94, 598 (2017)> =2017AZh....94..598N (SIMBAD/NED BibCode) =2017ARep...61..591NADC_Keywords: Pulsars ; Radio sourcesAbstract: 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:

FileName Lrecl Records Explanations

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

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

Bytes Format Units Label Explanations

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 <beta> Resulting mean beta angle value

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.

Byte-by-byte Description of file: table2.dat table3.dat

Bytes Format Units Label Explanations

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 <beta> Mean beta value 37- 44 E8.3 G Bcalc Calculated magnetic field 46- 53 E8.3 G 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

History: From electronic version of the journal(End)Patricia Vannier [CDS] 17-Jul-2017

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