SIMBAD references

2008MNRAS.384..687R - Mon. Not. R. Astron. Soc., 384, 687-691 (2008/February-3)

The X-ray spectrum of RX J1914.4+2456 revisited.


Abstract (from CDS):

It has been proposed that RX J1914.4+2456 is a stellar binary system with an orbital period of 9.5 min. As such it shares many similar properties with RX J0806.3+1527 (5.4 min). However, while the X-ray spectrum of RX J0806.3+1527 can be modelled using a simple absorbed blackbody, the X-ray spectrum of RX J1914.4+2456 has proved difficult to fit using a physically plausible model. In this paper, we re-examine the available X-ray spectra of RX J1914.4+2456 taken using XMM-Newton. We find that the X-ray spectra can be fitted using a simple blackbody and an absorption component which has a significant enhancement of neon compared to the solar value. We propose that the material in the interbinary system is significantly enhanced with neon. This makes its intrinsic X-ray spectrum virtually identical to RX J0806.3+1527. We re-access the X-ray luminosity of RX J1914.4+2456 and the implications of these results.

Abstract Copyright: © 2008 The Author

Journal keyword(s): stars: abundances - binaries: general - stars: individual: RX J1914.4+2456 - stars: individual: RX J0806.3+1527 - X-rays: binaries

Simbad objects: 4

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