2018A&A...615A..73R


Query : 2018A&A...615A..73R

2018A&A...615A..73R - Astronomy and Astrophysics, volume 615A, 73-73 (2018/7-1)

A new X-ray look into four old pulsars.

RIGOSELLI M. and MEREGHETTI S.

Abstract (from CDS):

We report on the X-ray properties of four rotation-powered pulsars with characteristic ages in the range 0.3-5Myr, derived from the analysis of XMM-Newton archival observations. We found convincing evidence of thermal emission only in the phase-averaged spectrum of PSR B0114+58, which is well fitted by a blackbody with temperature kT=0.17±0.02keV and emitting radius R=405+110–90m, consistent with the size of its polar cap. The three other considered pulsars, PSR B0628-28, PSR B0919+06, and PSR B1133+16, have phase-averaged spectra that can be described well by single power laws with photon index Γ∼3. The 3σ upper limits on the bolometric luminosity of a possible thermal component with temperatures in the range ∼0.05-2keV are Lbol≤3.2x1028erg/s and Lbol≤2.4x1029erg/s, for PSR B0628-28 and PSR B0919+06, respectively. On the other hand, we found possible evidence that the pulsed emission of PSR B0628-28 is thermal. Two absorption lines at ∼0.22keV and ∼0.44keV are detected in the spectrum of PSR B1133+16. They are best interpreted as proton cyclotron features, implying the presence of multipolar components with a field of a few 1013G at the neutron star polar caps. We discuss our results in the context of high-energy emission models of old rotation-powered pulsars.

Abstract Copyright: © ESO 2018

Journal keyword(s): pulsars: general - stars: neutron - pulsars: individual: PSR B0628-28 - pulsars: individual: PSR B0919+06 - pulsars: individual: PSR B0114+58 - pulsars: individual: PSR B1133+16

Simbad objects: 15

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Number of rows : 15
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 PSR J0030+0451 Psr 00 30 27.4277 +04 51 39.710           ~ 376 1
2 PSR B0114+58 Psr 01 17 38.661 +59 14 38.39           ~ 86 0
3 PSR B0355+54 Psr 03 58 53.7165 +54 13 13.727           ~ 419 1
4 PSR J0437-47 Psr 04 37 15.7994581776 -47 15 08.544351636           DC 840 0
5 PSR B0628-28 Psr 06 30 49.3710 -28 34 42.200           ~ 280 0
6 NAME Geminga Psr 06 33 54.153 +17 46 12.91           ~ 1166 0
7 PSR B0656+14 Psr 06 59 48.1960 +14 14 19.400   24.85 24.90     ~ 822 1
8 PSR B0834+06 Psr 08 37 05.642 +06 10 14.56           ~ 413 0
9 PSR B0919+06 Psr 09 22 14.1600 +06 38 28.800           ~ 272 0
10 PSR B0943+10 Psr 09 46 07.31 +09 51 57.3           ~ 320 1
11 PSR B1055-52 Psr 10 57 59.0450 -52 26 56.330           ~ 704 0
12 PSR B1133+16 Psr 11 36 03.0720 +15 51 15.500           ~ 642 0
13 PSR J1740+1000 Psr 17 40 25.91 +10 00 06.0           ~ 71 0
14 PSR B1822-09 Psr 18 25 30.5940 -09 35 21.200           ~ 330 0
15 PSR B1929+10 Psr 19 32 14.0570 +10 59 33.380           ~ 727 0

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2022.12.09-11:43:17

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