2020MNRAS.491.4634Y


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.14CEST14:08:24

2020MNRAS.491.4634Y - Mon. Not. R. Astron. Soc., 491, 4634-4641 (2020/February-1)

Periodic mode changing in PSR J1048-5832.

YAN W.M., MANCHESTER R.N., WANG N., WEN Z.G., YUAN J.P., LEE K.J. and CHEN J.L.

Abstract (from CDS):

By analysing the data acquired from the Parkes 64-m radio telescope at 1369 MHz, we report on the phase-stationary non-drift amplitude modulation observed in PSR J1048-5832. The high-sensitivity observations revealed that the central and trailing components of the pulse profile of this pulsar switch between a strong mode and a weak mode periodically. However, the leading component remains unchanged. Polarization properties of the strong and weak modes are investigated. Considering the similarity to mode changing, we argue that the periodic amplitude modulation in PSR J1048-5832 is periodic mode changing. The fluctuation spectral analysis showed that the modulation period is very short (∼2.1 s or 17P1), where P1 is the rotation period of the pulsar. We find that this periodic amplitude modulation is hard to explain by existing models that account for the periodic phenomena in pulsars like sub-pulse drifting.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: neutron - pulsars: general - pulsars: individual (PSR J1048-5832)

Simbad objects: 10

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Number of rows : 10

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 V* CM Tau Psr 05 34 31.93830 +22 00 52.1758           ~ 4879 1
2 PSR B0823+26 Psr 08 26 51.4 +26 37 23           ~ 474 1
3 PSR B1046-58 Psr 10 48 13.0500 -58 32 06.200           ~ 237 0
4 PSR B1133+16 Psr 11 36 03.0720 +15 51 15.500           ~ 618 0
5 PSR B1738-08 Psr 17 41 22.555 -08 40 31.80           ~ 75 0
6 PSR B1819-22 Psr 18 22 59.0000 -22 56 38.000           ~ 85 0
7 PSR B1822-09 Psr 18 25 30.5940 -09 35 21.200           ~ 312 0
8 PSR B1946+35 Psr 19 48 25.0067 +35 40 11.057           ~ 156 0
9 PSR B2003-08 Psr 20 06 16.3300 -08 07 01.000           ~ 74 0
10 NAME Carina Region reg ~ ~           ~ 165 0

    Equat.    Gal    SGal    Ecl

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2021.04.14-14:08:24

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