SIMBAD references

2005ApJ...620L..95G - Astrophys. J., 620, L95-L98 (2005/February-3)

A stellar wind bubble coincident with the anomalous X-ray pulsar 1E 1048.1-5937: are magnetars formed from massive progenitors.

GAENSLER B.M., McCLURE-GRIFFITHS N.M., OEY M.S., HAVERKORN M., DICKEY J.M. and GREEN A.J.

Abstract (from CDS):

We present 21 cm H I observations from the Southern Galactic Plane Survey of the field around the anomalous X-ray pulsar 1E 1048.1-5937, a source whose X-ray properties imply that it is a highly magnetized neutron star (a ``magnetar''). These data reveal an expanding hydrogen shell, GSH 288.3-0.5-28, centered on 1E 1048.1-5937, with a diameter of 35x23 pc (for a distance of 2.7 kpc) and an expansion velocity of ~7.5 km/s. We interpret GSH 288.3-0.5-28 as a wind bubble blown by a 30-40 Mstar, but no such central star can be readily identified. We suggest that GSH 288.3-0.5-28 is the wind bubble blown by the massive progenitor of 1E 1048.1-5937 and consequently propose that magnetars originate from more massive progenitors than do radio pulsars. This may be evidence that the initial spin period of a neutron star is correlated with the mass of its progenitor and implies that the magnetar birthrate is only a small fraction of that for radio pulsars.

Abstract Copyright:

Journal keyword(s): ISM: Bubbles - ISM: Individual: Alphanumeric: GSH 288.3-0.5-28 - Stars: Pulsars: Individual: Alphanumeric: 1E 1048.1-5937 - Radio Lines: ISM - Stars: Neutron - Stars: Winds, Outflows

Status at CDS:  

Simbad objects: 12

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2020.03.30-15:49:06

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