Searching for Circumbinary Disks around Low-Mass X-ray Binaries

Details Searching for Circumbinary Disks around Low-Mass X-ray Binaries Searching for Circumbinary Disks around Low-Mass X-ray Binaries

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sptz.prop.3289m&link_type=abstract

Spitzer Proposal ID #3289

Physics

Scientific paper

We propose to search in the mid-infrared for circumbinary disks around quiescent low-mass X-ray binaries (LMXBs) containing black holes and neutron stars. Circumbinary disks have been inferred to exist around similar binaries containing accreting white dwarfs, and could be the main mechanism by which angular momentum is extracted from their orbits. If such disks exist around LMXBs, they could be the site in which planetary systems like that around the isolated millisecond pulsar PSR 1257+12 formed. We show that a circumbinary disk could readily be detected at 8 and 24 um with IRAC and MIPS, and propose a series of observations (of total duration 3.5 h) to search for them around four of the nearest quiescent LMXBs.

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