Unraveling the Cooling Trend of a Magnetar: Study of Soft Gamma Repeater SGR 1627-41

Details Unraveling the Cooling Trend of a Magnetar: Study of Soft Gamma Repeater SGR 1627-41 Unraveling the Cooling Trend of a Magnetar: Study of Soft Gamma Repeater SGR 1627-41

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1220k&link_type=abstract

Chandra Proposal ID #04500745

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Chandra Proposal Id #04500745

Scientific paper

We propose a 50 ksec observation to measure the flux of SGR 1627-41. Our first Chandra observation found the source flux level to be ten times less than the projected value estimated from the decaying trend of the source we established with 2.3 years of monitoring. Establishing the decaying trend of the source will provide insight in the cooling mode of a magnetar and probe neutron star fundamental properties, such as heat transfer and dissipation. Further, if the source is found to continue this extreme decay, we will have the first evidence of the existence of extremely faint magnetars, which has direct consequences for their total numbers in our galaxy and their link with other objects, such as Dim Isolated Neutron Stars.

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