Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...264..251o&link_type=abstract
Astrophysical Journal, Part 1, vol. 264, Jan. 1, 1983, p. 251-261.
Astronomy and Astrophysics
Astrophysics
11
Accretion Disks, Eclipsing Binary Stars, Hot Stars, Stellar Color, Stellar Spectrophotometry, Interstellar Extinction, Light Curve, Ubv Spectra
Scientific paper
An analysis is presented of four-color uvby observations of the totally eclipsing binary RZ Ophiuchi. Photoelectric observations were obstained covering portions of the light curve between orbital phases 0.85 and 0.35. The colors of the hot binary component are consistent with its Ib luminosity classification, however low interstellar reddening implies the cool component, classified K5 Ib, cannot be more luminous than a typical giant. A nonstellar distortion of the light curve in the neighborhood of primary eclipse ingress is attributed to the effects of a thin extended accretion disk around the hot star, with a mean temperature of 4800 K and total mass of about 4 x 10 to the -7th solar masses, and within which Rayleigh scattering from neutral hydrogen is an important extinction source. Deviations from light-curve symmetry outside the eclipse region are explained by azimuthal differences in disk properties.
Hickey Jeffrey P.
Olson Edward C.
No associations
LandOfFree
Four-color photometry of RZ Ophiuchi and its accretion disk does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Four-color photometry of RZ Ophiuchi and its accretion disk, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Four-color photometry of RZ Ophiuchi and its accretion disk will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1195823