2019MNRAS.482.3415I


C.D.S. - SIMBAD4 rel 1.7 - 2019.12.13CET13:56:56

2019MNRAS.482.3415I - Mon. Not. R. Astron. Soc., 482, 3415-3425 (2019/January-3)

Ages of radio pulsar: long-term magnetic field evolution.

IGOSHEV A.P.

Abstract (from CDS):

We use the Bayesian approach to write the posterior probability density for the three-dimensional velocity of a pulsar and for its kinematic age. As a prior, we use the bimodal velocity distribution found in a recent article by Verbunt, Igoshev & Cator. When we compare the kinematic ages with spin-down ages we find that in general they agree with each other. In particular, maximum likelihood analysis sets the lower limit for the exponential magnetic field decay time-scale at 8 Myr with slight preference of tdec ≃ 12 Myr and compatible with no decay at all. One of the objects in the study, pulsar B0950+08 has kinematic and cooling ages ≃2 Myr which is in strong contradiction with its spin-down age τ ≃ 17 Myr. The 68 per cent credible range for the kinematic age is 1.2-8.0 Myr. We conclude that the most probable explanation for this contradiction is a combination of magnetic field decay and long initial period. Further timing, UV and X-ray observations of B0950+08 are required to better constrain its origin and evolution.

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

Journal keyword(s): methods: statistical - stars: neutron - pulsars: individual: B0950+08

Simbad objects: 44

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Number of rows : 44

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 PSR B0052+51 Psr 00 55 45.378 +51 17 24.97           ~ 35 0
2 PSR B0059+65 Psr 01 02 32.958 +65 37 13.40           ~ 38 0
3 PSR B0105+65 Psr 01 08 22.64 +66 08 34.0           ~ 64 0
4 PSR B0136+57 Psr 01 39 19.744 +58 14 31.73           ~ 132 0
5 PSR B0329+54 Psr 03 32 59.3462817079 +54 34 45.047901390           ~ 560 1
6 PSR B0355+54 Psr 03 58 53.7165 +54 13 13.727           ~ 379 1
7 PSR B0402+61 Psr 04 06 30.046 +61 38 40.92           ~ 72 0
8 PSR B0450+55 Psr 04 54 07.709 +55 43 41.51           ~ 143 0
9 PSR B0559-05 Psr 06 01 58.9821 -05 27 50.560           ~ 75 0
10 PSR B0626+24 Psr 06 29 05.728 +24 15 43.30           ~ 88 0
11 PSR B0628-28 Psr 06 30 49.478 -28 34 43.13           ~ 260 0
12 PSR B0656+14 Psr 06 59 48.183 +14 14 21.54   24.85 24.90     ~ 739 1
13 PSR B0727-18 Psr 07 29 32.351 -18 36 42.75           ~ 71 0
14 PSR B0823+26 Psr 08 26 51.4 +26 37 23           ~ 453 1
15 PSR B0919+06 Psr 09 22 14.008 +06 38 22.84           ~ 240 0
16 PSR B0950+08 Psr 09 53 09.3 +07 55 36           ~ 679 2
17 PSR B1133+16 Psr 11 36 03.180 +15 51 09.62           ~ 595 0
18 PSR B1508+55 Psr 15 09 25.7 +55 31 33           ~ 261 1
19 PSR B1540-06 Psr 15 43 30.1579 -06 20 45.250           ~ 92 0
20 PSR B1556-44 Psr 15 59 41.535 -44 38 46.11           ~ 111 0
21 PSR B1620-09 Psr 16 23 17.676 -09 08 49.20           ~ 41 0
22 PSR B1642-03 Psr 16 45 02.0414 -03 17 58.320           ~ 315 0
23 PSR B1700-18 Psr 17 03 51.088 -18 46 15.80           ~ 44 0
24 PSR B1732-07 Psr 17 35 04.9717 -07 24 52.490           ~ 47 0
25 PSR B1738-08 Psr 17 41 22.555 -08 40 31.80           ~ 69 0
26 PSR B1818-04 Psr 18 20 52.607 -04 27 38.12           ~ 186 0
27 PSR B1831-03 Psr 18 33 41.914 -03 39 04.33           ~ 59 0
28 PSR B1839+56 Psr 18 40 44.608 +56 40 55.47           ~ 85 0
29 PSR J1901-0906 Psr 19 01 53.015 -09 06 10.80           ~ 30 0
30 PSR B1911+13 Psr 19 13 24.3574 +14 00 52.720           ~ 57 0
31 PSR B1917+00 Psr 19 19 50.663 +00 21 39.80           ~ 87 0
32 PSR B1929+10 Psr 19 32 13.79 +10 59 33.2           ~ 683 0
33 PSR B1935+25 Psr 19 37 01.2659 +25 44 13.680           ~ 44 0
34 PSR B2020+28 Psr 20 22 37.0671 +28 54 23.104           ~ 278 1
35 PSR B2021+51 Psr 20 22 49.8730 +51 54 50.233           ~ 237 1
36 PSR B2043-04 Psr 20 46 00.157 -04 21 26.00           ~ 57 0
37 PSR B2045-16 Psr 20 48 35.446 -16 16 43.00           ~ 281 0
38 PSR B2053+36 Psr 20 55 31.3552 +36 30 21.489           ~ 85 0
39 PSR B2110+27 Psr 21 13 04.3895 +27 54 02.290           ~ 88 0
40 PSR B2154+40 Psr 21 57 01.840 +40 17 45.89           ~ 126 0
41 PSR B2223+65 Psr 22 25 52.36 +65 35 33.8           ~ 278 0
42 PSR J2248-0101 Psr 22 48 26.904 -01 01 48.10           ~ 20 0
43 PSR B2303+30 Psr 23 05 58.324 +31 00 01.76           ~ 174 0
44 PSR J2347-0612 Psr 23 46 50.454 -06 09 59.50           ~ 35 0

    Equat.    Gal    SGal    Ecl

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2019.12.13-13:56:56

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