Unveiling the nature of the 321s Orbital Period X-ray source RX J0806.3+1527

Details Unveiling the nature of the 321s Orbital Period X-ray source RX J0806.3+1527 Unveiling the nature of the 321s Orbital Period X-ray source RX J0806.3+1527

2003-03-05

arxiv.org/abs/astro-ph/0303124v1

Astronomy and Astrophysics

Astrophysics

7 pages. To be published in Proc. Cape Town Workshop on magnetic CVs. Dec 2002

Scientific paper

A nearly simultaneous X-ray/optical (Chandra and VLT) observational campaign of RX J0806.3+1527 has been carried out during November 2001. These observations allowed us to phase the X-ray and optical light curves for the first time. We measured a phase-shift of about 0.5, in good agreement with the presence of two distinct emission regions and with the X-ray irradiation process predictions. The Chandra data allowed us also to study in details the X-ray spectrum of RX J0806.3+1527, which is consistent with a soft (kT<70 eV) and small (R_BB<20 km) blackbody component. We discuss the present findings on the light of the models proposed so far to account for the X-ray emission detected from RX J0806.3+1527, and its twin source RX J1914.4+2456.

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