Is XTE J1701-407 Extended?

Details Is XTE J1701-407 Extended? Is XTE J1701-407 Extended?

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007cxo..prop.2692k&link_type=abstract

Chandra proposal ID #09408306

Physics

Scientific paper

We recently observed the neutron star X-ray transient XTE J1701-407 with Chandra, using 1 ks of ACIS-S data for localization. However, the Chandra data do not show a point source. Instead the source appears extended over ~6 arcsec. We have investigated the data, consulting with experts both at MIT and SAO, and cannot ascribe the data to purely instrumental effects (aspect errors or pileup). The extended X-ray emission could come from an outflow or a dust scattering halo - both very interesting and rare phenomena. Jets allow detailed calorimetry of the outbursts, while scattering halos lead to geometric distances. We request a 5 ks ACIS-S subarray observation to definitively assess the morphology, trying to discriminate between these scenarios before the target fades into quiescence.

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