J/AZh/88/22 Angles rotation/magnetic moment in pulsars (Malov+, 2011)
Angles between the rotational axis and magnetic moment in 80 pulsars from
observations near 1 GHz.
Malov I.F., Nikitina E.B.
<Astron. Zh. 88, 22 (2011)>
=2011AZh....88...22M 2011AZh....88...22M
=2011ARep...55...19M 2011ARep...55...19M
ADC_Keywords: Pulsars
Abstract:
Data on the pulse structure and variations of the linear polarization
angle at frequencies near 1GHz have been used to estimate the angles
β between the rotational axis and magnetic moment of the neutron
stars associated with 80 pulsars.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 41 80 Calculated angles β
table2.dat 33 80 Initial pulsar parameters
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See also:
J/AZh/71/762 : Radio luminosities of 232 pulsars (Malov+, 1994)
J/AZh/74/63 : Cluster analysis of pulsar parameters (Malov+, 1997)
J/AZh/77/499 : Flux densities of 235 pulsars at 102.5MHz (Malofeev+, 2000)
J/PAZh/29/571 : X-ray fluxes of radio pulsars (Malov, 2003)
J/AZh/83/542 : Integrated Radio Luminosities of Pulsars (Malov+, 2006)
J/AZh/87/238 : Pulse profiles of radio pulsars at 102 and 111MHz (Malov+ 2010)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Seq Pulsar sequential number
4- 7 F4.1 deg beta1 β angle from Eq. (7) (1)
9- 12 F4.1 deg beta2+ ? β angle value from Eq.(12) for C>0 (1)
14- 17 F4.1 deg beta2- ? β angle value from Eq.(12) for C<0 (1)
19- 23 F5.2 deg beta3- ? β angle value from Eq.(16)-(19) for C<0 (1)
25- 29 F5.2 deg beta3+ ? β angle value from Eq.(16)-(19) for C>0 (1)
31- 35 F5.2 deg zeta3+ ? ζ angle value from Eq.(16)-(19) for C>0 (1)
37- 41 F5.2 deg theta3+ ? θ angle value from Eq.(16)-(19) for C>0 (1)
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Note (1): Definitions of the angles:
* β (beta) is the angle between the rotational axis and
magnetic moment of the neutron star associated with the pulsar
* ζ (zeta) is the angle between the observer's line of sight
and the pulsar rotational axis
* θ (theta) is the angular radius of the emission cone
See text for equations.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Seq Pulsar sequential number
4- 10 A7 --- PSR PSR name (HHMM-DD)
12- 16 F5.3 s Per Spin period
18- 22 F5.2 --- C ? Derivative of the polarization angle with
respect to longitude (dψ/dφ)max (1)
24- 29 F6.4 --- D D parameter (D=cos(W10/2), where W10 is
the profile width at 10% level) (1)
31- 33 A3 --- n Ratio of the emission-cone half-width θ
to the angular distance where the line of sight
crosses this cone (ζ-β) (1)
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Note (1): Initial values of the parameters for the solution of Eq. (12)
Eq. (14) and Eq. (15). See text for equations.
Values studied for n = θ/(ζ-β) are
5/4, 3/2, 2, 4 and infinity (inf)
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 27-Jan-2011