Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987ap%26ss.130...69s&link_type=abstract
(IAU, DFG, and Bayerisches Staatsministerium für Unterricht und Kultus, Colloquium on Cataclysmic Variables, Recent Multi-Freque
Astronomy and Astrophysics
Astrophysics
4
Accretion Disks, Cataclysmic Variables, Stellar Color, Stellar Orbits, Stellar Spectra, Continuous Spectra, H Lines, Line Spectra, Novae
Scientific paper
New and previously existing photometric colors and spectroscopic H and He line strengths are used to compare CV disk systems below the period gap (P=80-130 min) with those directly above (P=190-240 min). Significant differences are found in the mean U-B, V-J colors and in the H-beta equivalent widths on the two sides of the gap. A detailed comparison from UV-IR of 3 high inclination novalike systems with periods near 3.3 hr (PG1012-029, PG1030 + 590 and V1315 Aql) shows similar continuum distributions (and implied mass accretion rates) but large differences in high excitation lines (He III 640 A and 4686 A; C IV 1550 A).
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