Unveiling the multiwavelength spectrum of the AXP XTEJ1810-197

Details Unveiling the multiwavelength spectrum of the AXP XTEJ1810-197 Unveiling the multiwavelength spectrum of the AXP XTEJ1810-197

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1610i&link_type=abstract

Chandra Proposal ID #04508157

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Chandra Proposal Id #04508157

Scientific paper

XTEJ1810-197 is a newly discovered Anomalous X-ray Pulsar (AXP), first detected by XTE and INTEGRAL and then observed by Chandra (DDT obs. carried out on 28 August 2003) and XMM (ToO obs.; see Gotthelf et al. 2003, astro-ph/0309745). XTEJ1810-197 is also the first confirmed example of a transient AXP. The Chandra data allowed to detect XTEJ1810-197, about 15' off-axis, resulting in a less accurate position (radius of about 2.5"; 1sigma). On October 7th we carried out deep IR obs. with the adaptive optic instrument (NACO) mounted on the VLT. These data allowed us to sort out four faint (Ks>19.5) IR counterpart candidates to XTEJ1810-197. The latters are separated each other of more than 1" (within the Chandra uncertainty region of radius 2.5"). Therefore, the requested Chandra on-axis obs. will allow us to unambiguously identify the counterpart to XTEJ1810-197 (position with radius of about 0.6" at 90% c.l.).

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