Astrophysics and Space Science

, Volume 130, Issue 1–2, pp 69–73 | Cite as

A photometric and spectroscopic comparison of the cataclysmic variables on the 2 sides of the period gap and at a specific orbital period

  • P. Szkody
II. Radio, IR and Optical Observations

Abstract

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 Hß equivalent widths on the 2 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 Aq1) shows similar continuum distributions (and implied mass accretion rates) but large differences in high excitation lines (HeII1640, 4686; CIV1550).

Keywords

Color Orbital Period Detailed Comparison Continuum Distribution High Inclination 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Bruch, A., 1984,Astr. Ap. Suppl.,56, 441.Google Scholar
  2. Downes, R., Mateo, M., Szkody, P., Jenner, D. and Margon, B., 1986,Ap. J.,301, 240.Google Scholar
  3. Honeycutt, R., Schlegel, E. and Kaitchuck, R., 1986,Ap. J.,302, 388.Google Scholar
  4. Patterson, J., 1984,Ap. J. Suppl.,54, 443.Google Scholar
  5. Shafter, A., Wheeler, J., and Cannizzo, J., 1986,Ap. J.,305, 261.Google Scholar
  6. Szkody, P., 1986,Ap. J. Suppl., submitted.Google Scholar
  7. Williams, G., 1983,Ap. J. Suppl.,53, 523.Google Scholar
  8. Williams, R. and Ferguson, D., 1982,Ap. J.,257, 672.Google Scholar

Copyright information

© D. Reidel Publishing Company 1987

Authors and Affiliations

  • P. Szkody
    • 1
  1. 1.Department of AstronomyUniversity of WashingtonSeattleU. S. A.

Personalised recommendations