2016A&A...592A.127W


Query : 2016A&A...592A.127W

2016A&A...592A.127W - Astronomy and Astrophysics, volume 592A, 127-127 (2016/8-1)

Investigation of nulling and subpulse drifting properties of PSR J1727-2739.

WEN Z.G., WANG N., YUAN J.P., YAN W.M., MANCHESTER R.N., YUEN R. and GAJJAR V.

Abstract (from CDS):

Aims. We intend to study of the nulling and subpulse drifting in PSR J1727-2739 in detail to investigate its radiation properties.
Methods. The observations were carried out on 20 March, 2004 using the Parkes 64-m radio telescope with a central frequency of 1518 MHz. A total of 5568 single pulses were analysed.
Results. This pulsar shows well-defined nulls with lengths lasting from 6 to 281 pulses and separated by burst phases ranging from 2 to 133 pulses. We estimate a nulling fraction of around 68%. No emission in the average pulse profile integrated over all null pulses is detected with significance above 3σ. Most transitions from nulls to bursts are within a few pulses, whereas the transitions from bursts to nulls exhibit two patterns of decay; these transitions either decrease gradually or rapidly. In the burst phase, we find that there are two distinct subpulse drift modes with vertical spacing between the drift bands of 9.7±1.6 and 5.2±0.9 pulse periods, while sometimes there is a third mode with no subpulse drifting. Some mode transitions occur within a single burst, while others are separated by nulls. Different modes have different average pulse profiles. Possible physical mechanisms are discussed.

Abstract Copyright: © ESO, 2016

Journal keyword(s): pulsars: general - pulsars: general

Simbad objects: 8

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Number of rows : 8
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 PSR B0031-07 Psr 00 34 08.9100 -07 21 56.000           ~ 292 0
2 PSR B0809+74 Psr 08 14 59.500 +74 29 05.70           ~ 376 0
3 PSR B0818-41 Psr 08 20 15.4500 -41 14 35.300           ~ 75 0
4 PSR J1502-5653 Psr 15 02 57.389 -56 53 39.21           ~ 16 0
5 PSR J1727-2739 Psr 17 27 30.99 -27 39 00.5           ~ 23 0
6 PSR J1738-2330 Psr 17 38 08.8 -23 30 47           ~ 14 0
7 PSR B1737+13 Psr 17 40 07.3455 +13 11 56.690           ~ 160 0
8 PSR J1933+2421 Psr 19 33 37.83 +24 36 39.6           ~ 135 0

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2021.12.08-09:02:50

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