2006
DOI: 10.1086/507262
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ChandraObservations of the Transient 7 s X‐ray Pulsar AX J1845.0−0258

Abstract: We present the results of Chandra X-Ray Observatory observations of the transient anomalous X-ray pulsar candidate AX J1845.0À0258 in apparent quiescence. Within the source's error circle, we find a point source and possible counterpart, which we designate CXOU J184454.6À025653. No coherent pulsations are detected, and no extended emission is seen. The source's spectrum is equally well described by a blackbody model of temperature kT $ 2:0 keV or a power-law model with photon index À $ 1:0. This is considerabl… Show more

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Cited by 34 publications
(40 citation statements)
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References 24 publications
(46 reference statements)
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“…Tam et al (2006) argue that the recent flux data of AX J1845−0258 may be from another unrelated source within the error circles. Because of this ambiguity, we did not include this source in the present work.…”
Section: Application Of the Model To The X-ray Enhancement Light Curvmentioning
confidence: 83%
“…Tam et al (2006) argue that the recent flux data of AX J1845−0258 may be from another unrelated source within the error circles. Because of this ambiguity, we did not include this source in the present work.…”
Section: Application Of the Model To The X-ray Enhancement Light Curvmentioning
confidence: 83%
“…Given the spectacular radiative outburst contemporaneous with the large 2002 1E 2259+586 glitch, we can speculate that larger angular momentum transfers that occur in radio pulsars could result in even more dramatic outbursts in affected AXPs, possibly like those seen in XTE 1810−197 (Ibrahim et al 2004) and in the AXP candidate AX J1845−0258 (Tam et al 2006). Indeed a recent X-ray burst observed from CXOU J164710.2−455216 (Muno et al 2007) has been claimed to be accompanied by a very large (∆ν/ν ≃ 6×10 −5 , ∆ν ≃ 6×10 −6 ) glitch (Israel et al 2007a), and AXP 1E 1048.1−5937 recently exhibited a large glitch and flux increase (Dib et al 2007b, Dib et al, in prep.).…”
Section: Axp Glitchesmentioning
confidence: 98%
“…1-left). In addition to the three Chandra sources reported in Tam et al (2006) (labelled here as source F, O and R), the EPIC data reveal the presence of 7 new sources inside (or slightly outside) the error regions of AX J1845-0258. All of them are detected at 3σ in at least one of the considered energy ranges (0.3-10 keV, 0.3-2 keV, and 2-10 keV).…”
Section: Data Analysis and Resultsmentioning
confidence: 85%