The radial velocity curve and peculiar TiO distribution of the red secondary star in Z Chamaeleontis

Details The radial velocity curve and peculiar TiO distribution of the red secondary star in Z Chamaeleontis The radial velocity curve and peculiar TiO distribution of the red secondary star in Z Chamaeleontis

Jan 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...324..411w&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 324, Jan. 1, 1988, p. 411-430.

Astronomy and Astrophysics

Astrophysics

298

Dwarf Novae, Eclipsing Binary Stars, Radial Velocity, Spatial Distribution, Titanium Oxides, Velocity Distribution, Absorption Spectra, Accretion Disks, Charge Coupled Devices, M Stars, Stellar Luminosity, Stellar Spectrophotometry

Scientific paper

The secondary star of the dwarf nova Z Cha has been detected with the CCD spectrograph of the CTIO 4 m telescope. The TiO λ7150/λ7650 band ratio implies a Boeshaar spectral type of M5.5 for the secondary star, which contributes ≡15% of the light at λ7500. The absolute absorption strength of TiO is very weak on the side of the star that faces the white dwarf and accretion disk. The authors use cross-correlation techniques to measure the velocity of the secondary star as a function of orbital phase, and examine the photometric variations of spectral features with orbital phase. They also model the phase variations of the absorption features in terms of their surface distribution on the secondary star, evaluate a correction to the observed K velocity to account for the nonuniform line strength, and derive physical parameters of the Z Cha system.

Affiliated with

Also associated with

No associations

Rating

The radial velocity curve and peculiar TiO distribution of the red secondary star in Z Chamaeleontis 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 The radial velocity curve and peculiar TiO distribution of the red secondary star in Z Chamaeleontis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The radial velocity curve and peculiar TiO distribution of the red secondary star in Z Chamaeleontis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1044951