2002ApJ...567L.141M

Query : 2002ApJ...567L.141M

2002ApJ...567L.141M - Astrophys. J., 567, L141-L144 (2002/March-2)

Proper-motion measurements of pulsar B1951+32 in the supernova remnant CTB 80.

MIGLIAZZO J.M., GAENSLER B.M., BACKER D.C., STAPPERS B.W., VAN DER SWALUW E. and STROM R.G.

Abstract (from CDS):

Using the Very Large Array and the Pie Town antenna, we have measured the position of the radio pulsar B1951+32 relative to nearby background radio sources at four epochs between 1989 and 2000. These data show a clear motion for the pulsar of 25±4 mas.yr–1 at a position angle 252°±7° (north through east), corresponding to a transverse velocity 240±40 km.s–1 for a distance to the source of 2 kpc. The measured direction of motion confirms that the pulsar is moving away from the center of its associated supernova remnant, the first time that such a result has been demonstrated. Independent of assumptions made about the pulsar birthplace, we show that the measured proper motion implies an age for the pulsar of 64±18 kyr, somewhat less than its characteristic age of 107 kyr. This discrepancy can be explained if the initial spin period of the pulsar was P0=27±6 ms.

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Journal keyword(s): ISM: Individual: Alphanumeric: CTB 80 - Stars: Pulsars: Individual: Alphanumeric: PSR B1951+32 - Radio Continuum: ISM - Stars: Neutron - ISM: Supernova Remnants

Nomenclature: Table 1: [MGB2002] N (Nos 1-7).

Simbad objects: 23

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Number of rows : 23
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 SNR G130.7+03.1 SNR 02 05 35.73 +64 49 41.3           ~ 661 4
2 PSR J0205+6449 Psr 02 05 37.92 +64 49 42.8           ~ 268 1
3 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
4 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5476 0
5 PSR J0537-6910 Psr 05 37 46.66 -69 10 17.1           ~ 309 1
6 NGC 2060 SNR 05 37 51.4466169456 -69 10 23.947092084   9.69 9.59     ~ 380 2
7 PSR B0540-69 Psr 05 40 11.2000490438 -69 19 54.198559829           ~ 976 3
8 PSR J1124-5916 Psr 11 24 37.6 -59 16 20           ~ 178 1
9 SNR G292.0+01.8 SNR 11 24 59 -59 19.1           ~ 351 1
10 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
11 SNR G011.2-00.3 SNR 18 11 28.9 -19 25 29           ~ 305 1
12 PSR J1811-1926 Psr 18 11 29.15 -19 25 25.4           ~ 136 1
13 ICRF J192559.6+210626 BLL 19 25 59.60535459 +21 06 26.1620257           ~ 212 1
14 [MGB2002] 7 Rad 19 52 15.64 +32 49 39.2           ~ 1 0
15 [MGB2002] 6 Rad 19 52 15.79 +32 49 35.7           ~ 1 0
16 SNR G068.8+02.6 SNR 19 52 55 +32 54.2           ~ 361 1
17 PSR B1951+32 Psr 19 52 58.181 +32 52 40.98           ~ 615 2
18 [MGB2002] 5 Rad 19 53 13.41 +33 01 21.8           ~ 1 0
19 [MGB2002] 3 Rad 19 53 15.63 +32 59 38.1           ~ 1 0
20 [MGB2002] 2 Rad 19 53 16.4 +32 48 46           ~ 1 0
21 [MGB2002] 1 Rad 19 53 17.80 +32 52 09.6           ~ 1 0
22 [MGB2002] 4 Rad 19 53 25.41 +32 58 12.5           ~ 1 0
23 QSO J2015+371 BLL 20 15 28.72978661 +37 10 59.5147372     21.82 21.4   ~ 324 2

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