SIMBAD references

2004ApJ...610..411H - Astrophys. J., 610, 411-415 (2004/July-3)

The radial velocity and mass of the white dwarf of EX Hydrae measured with Chandra.

HOOGERWERF R., BRICKHOUSE N.S. and MAUCHE C.W.

Abstract (from CDS):

We present the first detection of orbital motion in the cataclysmic variable EX Hydrae based on X-ray data from Chandra. The large collecting area of the telescope and the high resolution of the HETG spectrometers allow for an unprecedented velocity accuracy of ∼15 km/s in the X-ray wavelength regime. We find an emission line velocity amplitude of 58.2±3.7 km/s and infer a white dwarf mass of 0.49±0.13 M☉, in good agreement with previous studies using optical, ultraviolet, and far-ultraviolet data.

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Journal keyword(s): Stars: Novae, Cataclysmic Variables - Stars: Individual: Constellation Name: EX Hydrae - Techniques: Spectroscopic - X-Rays: Stars

Simbad objects: 1

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