SS 433 - Improved evidence for a persistent 160 day photometric period

Details SS 433 - Improved evidence for a persistent 160 day photometric period SS 433 - Improved evidence for a persistent 160 day photometric period

Dec 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...275..247h&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 275, Dec. 1, 1983, p. 247-250.

Astronomy and Astrophysics

Astrophysics

7

Binary Stars, Stellar Mass Accretion, Stellar Spectrophotometry, Variable Stars, Light Curve, Power Spectra, Spectrum Analysis, Stellar Models

Scientific paper

Photometric observations of SS 433 in V band obtained during the four-year period 1979-1982 are presented. The increased length of the data string has made detection of a true 160-day periodicity possible. A power-spectrum analysis of the data now reveals a period of 161.5 + or - 0.3 days. The structure of the 160-day light curve favors the accretion-disk model for the system, but it implies a need for asymmetry associated with the disk.

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