Contiguous 13-day NIR spectral observations of SS 433

Details Contiguous 13-day NIR spectral observations of SS 433 Contiguous 13-day NIR spectral observations of SS 433

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...199.0619h&link_type=abstract

American Astronomical Society, 199th AAS Meeting, #06.19; Bulletin of the American Astronomical Society, Vol. 33, p.1313

Astronomy and Astrophysics

Astronomy

Scientific paper

The first ever fully sampled, uninterrupted 13-day near-infrared spectroscopic study of the unusual binary system SS 433 are presented. Data were obtained using moderate resolution, R ≈ 3000, H- and K-band spectroscopy with the Steward Observatory 2.3-m telescope + FSpec spectrograph. The goal was to trace the variations of any spectral components seen in the NIR over the binary orbital period of 13 days. Previous red-optical work suggests a signature from the optical mass donor might be difficult to find at NIR wavelengths, though we may detect the disk's orbital motion. Indeed, we do identify possible sinusoidal motions, which we are currently analyzing and will present in this poster paper. MMH is supported by NSF grants AST-9973922 and AST-0094050 to the University of Cincinnati.

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