The X-ray emission of the old Nova V603 Aquilae (1918)

Details The X-ray emission of the old Nova V603 Aquilae (1918) The X-ray emission of the old Nova V603 Aquilae (1918)

Oct 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...126..357d&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 126, no. 2, Oct. 1983, p. 357-362. Sponsorship: Deutsche Forschungsgemeinschaf

Astronomy and Astrophysics

Astronomy

18

Astronomical Spectroscopy, Emission Spectra, Light Curve, Novae, Spaceborne Astronomy, X Ray Sources, Astronomical Photometry, Stellar Mass Accretion, White Dwarf Stars

Scientific paper

X-ray observations of the old nova V603 Aql have been obtained with the IPC and MPC instruments aboard the Einstein Observatory during 1.7 consecutive orbital cycles. Periodic orbital phase-dependent flux variations are detected with large amplitude flickering superimposed on the sinusoidal X-ray light curve. The spectrum is hard, characterized by a temperature of 20 - 30 keV, and the maximum X-ray luminosity observed was ≡3×1033 erg s-1. The X-ray measurements are compared with recent optical photometric observations, and the origin of the periodic modulation of the optical and X-ray flux is discussed.

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