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Astron. Astrophys. 327, 245-251 (1997)

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7. Conclusions

V2301 Oph shows a rich variety of features both in its X-ray light curves and its hard X-ray and UV spectrum which clearly indicates an origin in an AM Her system: an orbital "hump" due to the changing aspect of the central X-ray source which is fixed in the rotating frame of a synchronous binary; the lack of a measurable spin-pulse; "dips" in the light curve due to the passage of the accretion stream in front of the line-of-sight after it has been lifted out of the orbital plane; UV emission line-ratios more typical of a magnetic than a non-magnetic system; and an X-ray spectrum indicative of a non-isothermal optically thin emission region like that expected for a magnetic accretion column in an only moderately strong magnetic field.

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© European Southern Observatory (ESO) 1997

Online publication: April 8, 1998
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