2019MNRAS.483.4784M


Query : 2019MNRAS.483.4784M

2019MNRAS.483.4784M - Mon. Not. R. Astron. Soc., 483, 4784-4802 (2019/March-2)

A detailed study of giant pulses from PSR B1937+21 using the Large European Array for Pulsars.

McKEE J.W., STAPPERS B.W., BASSA C.G., CHEN S., COGNARD I., GAIKWAD M., JANSSEN G.H., KARUPPUSAMY R., KRAMER M., LEE K.J., LIU K., PERRODIN D., SANIDAS S.A., SMITS R., WANG L. and ZHU W.W.

Abstract (from CDS):

We have studied 4265 giant pulses (GPs) from the millisecond pulsar B1937+21; the largest-ever sample gathered for this pulsar, in observations made with the Large European Array for Pulsars. The pulse energy distribution of GPs associated with the interpulse are well-described by a power law, with index α = -3.99 ± 0.04, while those associated with the main pulse are best-described by a broken power law, with the break occurring at ∼7 Jy s with power law indices αlow = -3.48 ± 0.04 and αhigh = -2.10 ± 0.09. The modulation indices of the GP emission are measured, which are found to vary by ∼0.5 at pulse phases close to the centre of the GP phase distributions. We find the frequency-resolved structure of GPs to vary significantly, and in a manner that cannot be attributed to the interstellar medium influence on the observed pulses. We examine the distribution of polarisation fractions of the GPs and find no correlation between GP emission phase and fractional polarisation. We use the GPs to time PSR B1937+21 and although the achievable time of arrival precision of the GPs is approximately a factor of two greater than that of the average pulse profile, there is a negligible difference in the precision of the overall timing solution when using the GPs.

Abstract Copyright: 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): pulsars:general - pulsars:individual (PSR B1937+21) - pulsars:individual (PSR J1939+2134) - stars:neutron - stars:rotation - radiation mechanisms: non-thermal

Simbad objects: 20

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Number of rows : 20
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 PSR B0031-07 Psr 00 34 08.9100 -07 21 56.000           ~ 350 0
2 FRB 170827 rB 00 49 18.66 -65 33 02.3           ~ 47 0
3 PSR J0218+42 Psr 02 18 06.3604 +42 32 17.365           ~ 365 2
4 PSR B0529-66.9 Psr 05 29 50.90000 -66 52 39.9000           ~ 42 0
5 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5476 0
6 PSR J0537-6910 Psr 05 37 46.66 -69 10 17.1           ~ 309 1
7 PSR B0540-69 Psr 05 40 11.2000490438 -69 19 54.198559829           ~ 976 3
8 PSR B0656+14 Psr 06 59 48.18800 +14 14 19.2000   24.85 24.90     ~ 943 1
9 PSR B0950+08 Psr 09 53 09.31210 +07 55 36.9000           ~ 806 2
10 PSR J1022+10 Psr 10 22 57.990 +10 01 52.92           ~ 279 2
11 PSR B1112+50 Psr 11 15 38.400 +50 30 12.29           ~ 154 0
12 PSR B1237+25 Psr 12 39 40.386 +24 53 49.87           ~ 497 1
13 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
14 PSR J1748-2446ad Psr 17 48 04.9 -24 46 04           ~ 141 1
15 PSR J1752+2359 Psr 17 52 35.42 +23 59 48.2           ~ 64 0
16 PSR J1820-30A Psr 18 23 40.4842 -30 21 39.920           ~ 168 1
17 PSR J1824-2452A Psr 18 24 32.009 -24 52 11.10           ~ 529 2
18 PSR B1933+16 Psr 19 35 47.7011639352 +16 16 40.034899524           ~ 328 1
19 PSR B1937+21.4 Psr 19 39 38.560096 +21 34 59.13552           ~ 1142 0
20 PSR J1959+2048 Psr 19 59 36.7643141520 +20 48 14.896407996   21.08 20.16 19.53 18.79 G: 854 3

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