A Multiwavelength Study of the Runaway Binaries HD 14633 and HD 15137

Details A Multiwavelength Study of the Runaway Binaries HD 14633 and HD 15137 A Multiwavelength Study of the Runaway Binaries HD 14633 and HD 15137

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011bsrsl..80..565m&link_type=abstract

Société Royale des Sciences de Liège, Bulletin, vol. 80, p. 565-571 (Proceedings of the 39th Liège Astrophysical Colloquium, hel

Astronomy and Astrophysics

Astrophysics

Scientific paper

The runaway O-type binaries HD 14633 and HD 15137 were likely ejected from the cluster of their birth by supernovae explosions in close binaries. Here we present recent optical spectra to update the orbital solutions of the binaries and study the physical parameters of the O star primaries. We also present XMM-Newton observations of both systems that attempt to detect hard power-law emission from compact companions. EPIC spectra of HD 14633 at periastron and apastron reveal a non-thermal X-ray flux component that is variable during the orbit. Our EPIC spectra of HD 15137 indicate thermal X-ray emission consistent with an isolated O star. We provide an upper limit on the emission from a compact companion in HD 15137.

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