2001A&A...374..259G


C.D.S. - SIMBAD4 rel 1.7 - 2020.08.04CEST22:01:41

2001A&A...374..259G - Astronomy and Astrophysics, volume 374, 259-263 (2001/7-4)

On the age of PSR B1509-58.

GVARAMADZE V.V.

Abstract (from CDS):

It is generally accepted that the PSR B1509-58 is associated with the supernova remnant (SNR) MSH15-52 (G320.4-01.2). The spin-down age of the pulsar is ≃1700 years, while the size and the general appearance of the SNR suggest that this system is much older. A few possible explanations of this discrepancy have been put forward. We offer an alternative one and suggest that the high spin-down rate of the pulsar characterizes only a relatively short period of its (present) spin history, and that the enhanced braking torque is connected with the interaction between the pulsar's magnetosphere and the dense matter of a circumstellar clump (created during the late evolutionary stages of the supernova (SN) progenitor star). Our suggestion implies that the ``true'' age of PSR B1509-58 could be much larger than the spin-down age, and therefore the SNR MSH15-52 is a middle-aged remnant similar to the Vela SNR (G263.9-3.3). We also suggest that the dense (neutral) gas of the circumstellar clump could be responsible for the enhanced neutral hydrogen absorption towards PSR B1509-58, and that the optical emission of an optical counterpart for PSR B1509-58 should rather be attributed to a bow shock around this pulsar than to the pulsar itself.

Abstract Copyright:

Journal keyword(s): stars: neutron - pulsars: individual: B1509-58 - ISM: bubbles - ISM: individual objects: MSH15-52 - ISM: supernova remnants

Simbad objects: 7

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Number of rows : 7

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 V* CM Tau Psr 05 34 31.93830 +22 00 52.1758           ~ 4811 1
2 SN 1987A SN* 05 35 28.020 -69 16 11.07           SNIIpec 4488 2
3 NAME Vela XYZ Rad 08 34.0 -45 50           ~ 1114 2
4 HESS J1514-591 Rad 15 13 17.000 -59 04 54.00           ~ 376 3
5 SNR G320.4-01.0 SNR 15 13 35 -59 00.2           ~ 79 0
6 PSR B1509-58 Psr 15 13 55.52 -59 08 08.8           ~ 797 1
7 NAME Cas A SNR 23 23 24.000 +58 48 54.00           ~ 2421 1

    Equat.    Gal    SGal    Ecl

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2020.08.04-22:01:41

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