J/MNRAS/301/235 Multifrequency polarimetry of 300 pulsars (Gould+, 1998)
Multifrequency polarimetry of 300 radio pulsars.
Gould D.M., Lyne A.G.
<Mon. Not. R. Astron. Soc. 301, 235 (1998)>
=1998MNRAS.301..235G 1998MNRAS.301..235G
ADC_Keywords: Pulsars ; Radio sources ; Polarization
Keywords: polarization - pulsars: general
Abstract:
Polarimetric observations of 300 pulsars have been conducted with the
76-m Lovell telescope at Jodrell Bank at radio frequencies centred
around 230, 400, 600, 920, 1400 and 1600MHz. More than half of the
pulsars have no previously published polarization profiles and this
compilation represents about three times the sum of all previously
published pulsar polarization data. A selection of integrated
polarization profiles is provided. Tables of pulse widths and the
degree of both linear and circular polarization are given for all
pulsars, and these act as an index for all the data, which are
available by anonymous ftp in numerical and graphical form.
Description:
The observations were made with the 76-m Lovell telescope at Jodrell
Bank; the polarimeters consisted of 2 orthogonal dipoles and a hybrid
or quarter wave plate, providing the left-hand (L) and right-hand (R)
circular polarizations. The observations were carried out over a
period of almost 4years, from 1987-12-01 to 1991-09-09.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 81 305 Degree of polarization
table4.dat 113 305 Pulse widths
fig/* . 311 Plots of polarisation profiles at up to 6
frequencies for 300 radio pulsars
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See also:
VII/156 : Catalog of 558 Pulsars (Taylor+ 1993)
J/MNRAS/273/411 : Multifrequency fluxes of 280 pulsars (Lorimer+ 1995)
J/ApJS/121/171 : Arecibo polarimetry of 98 pulsars (Weisberg+, 1999)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- PSRB PSR B designation (hhmm+dd)
9 A1 --- m_PSRB [imB] Multiplicity index (m=main, i=interpulse)
11- 19 A9 --- PSRJ PSRJ designation (hhmm+ddmm)
20 A1 --- m_PSRJ [imB] Multiplicity index on PSRJ
21 A1 --- f_PSRJ [a-e] Flag for possible scattering (1)
23- 24 I2 % L230 [0/99]? Mean percentage linear polarisation
at 230MHz
26- 27 I2 % |V|230 [0/99]? Percentage circular polarization
without regard to handedness at 230MHz
29- 31 I3 % V230 [-99/99]? Percentage circular polarization
with regard to handedness at 230MHz
33- 34 I2 % L400 [0/99]? Mean percentage linear polarisation
at 400MHz
36- 37 I2 % |V|400 [0/99]? Percentage circular polarization
without regard to handedness at 400MHz
39- 41 I3 % V400 [-99/99]? Percentage circular polarization
with regard to handedness at 400MHz
43- 44 I2 % L600 [0/99]? Mean percentage linear polarisation
at 600MHz
46- 47 I2 % |V|600 [0/99]? Percentage circular polarization
without regard to handedness at 600MHz
49- 51 I3 % V600 [-99/99]? Percentage circular polarization
with regard to handedness at 600MHz
53- 54 I2 % L920 [0/99]? Mean percentage linear polarisation
at 920MHz
56- 57 I2 % |V|920 [0/99]? Percentage circular polarization
without regard to handedness at 920MHz
59- 61 I3 % V920 [-99/99]? Percentage circular polarization
with regard to handedness at 920MHz
63- 64 I2 % L1400 [0/99]? Mean percentage linear polarisation
at 1400MHz
66- 67 I2 % |V|1400 [0/99]? Percentage circular polarization
without regard to handedness at 1400MHz
69- 71 I3 % V1400 [-99/99]? Percentage circular polarization
with regard to handedness at 1400MHz
73- 74 I2 % L1600 [0/99]? Mean percentage linear polarisation
at 1600MHz
76- 77 I2 % |V|1600 [0/99]? Percentage circular polarization
without regard to handedness at 1600MHz
79- 81 I3 % V1600 [-99/99]? Percentage circular polarization
with regard to handedness at 1600MHz
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Note (1): the flag indicates that some of the data are belived to be
affected by interstellar scatteing at frequencies of ≤400MHz(a),
≤600MHz(b), ≤920MHz(c), ≤1400MHz(d), or ≤1600MHz(e)
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- PSRB PSR B name
9 A1 --- m_PSRB [miB] Multiplicity index on PSRB
11- 14 F4.1 deg 230W50 [0/360]? 230MHz pulse width at half of
peak intensity (1)
16- 20 F5.1 deg 230W10 [0/360]? 230MHz pulse width at one-tenth of
peak intensity (1)
22- 25 F4.1 deg 230W [0/360]? 230MHz equivalent width
27- 31 F5.1 deg 400W50 [0/360]? 400MHz pulse width at half of
peak intensity (1)
33- 37 F5.1 deg 400W10 [0/360]? 400MHz pulse width at one-tenth of
peak intensity (1)
39- 43 F5.1 deg 400W [-6/140]? 400MHz equivalent width
45- 49 F5.1 deg 600W50 [0/360]? 600MHz pulse width at half of
peak intensity (1)
51- 55 F5.1 deg 600W10 [0/360]? 600MHz pulse width at one-tenth of
peak intensity (1)
57- 61 F5.1 deg 600W [0/360]? 600MHz equivalent width
63- 67 F5.1 deg 920W50 [0/360]? 920MHz pulse width at half of
peak intensity (1)
69- 73 F5.1 deg 920W10 [0/360]? 920MHz pulse width at one-tenth of
peak intensity (1)
75- 78 F4.1 deg 920W [0/360]? 920MHz equivalent width
80- 84 F5.1 deg 1400W50 [0/360]? 1400MHz pulse width at half of
peak intensity (1)
86- 90 F5.1 deg 1400W10 [0/360]? 1400MHz pulse width at one-tenth of
peak intensity (1)
92- 96 F5.1 deg 1400W [0/360]? 1400MHz equivalent width
98-102 F5.1 deg 1600W50 [0/360]? 1600MHz pulse width at half of
peak intensity (1)
104-108 F5.1 deg 1600W10 [0/360]? 1600MHz pulse width at one-tenth of
peak intensity (1)
110-113 F4.1 deg 1600W [0/360]? 1600MHz equivalent width
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Note (1): Pulse full widths measured in degrees of longitude.
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History: Prepared via OCR at CDS.
Figures copied at ftp.jb.man.ac.uk
(End) James Marocut, Patricia Bauer [CDS] 26-Jun-2000