Spitzer space telescope observations of SGR and AXP environments

Details Spitzer space telescope observations of SGR and AXP environments Spitzer space telescope observations of SGR and AXP environments

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007ap%26ss.308...67w&link_type=abstract

Astrophysics and Space Science, Volume 308, Issue 1-4, pp. 67-71

Astronomy and Astrophysics

Astrophysics

2

Scientific paper

Both Anomalous X-ray Pulsars (AXPs) and Soft Gamma Repeaters (SGRs) are thought to be manifestations of magnetars. However, the specific physical characteristics that differentiate the two classes of objects remain unclear. There is some evidence that the progenitors of these sources and/or the environment in which they form might influence the type of phenomena the resulting magnetar displays. Several of the AXPs appear to be associated with supernova remnants, while embedded clusters of massive stars have been found in the immediate vicinity of some SGRs. Since both AXPs and SGRs are distributed close to the Galactic plane, high extinction makes studies in the optical difficult. We present early results from our Spitzer program aimed at probing the environmental factors that might contribute to the difference in the observed characteristics between AXPs and SGRs.

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