SIMBAD references

2012ApJ...753...86T - Astrophys. J., 753, 86 (2012/July-1)

A class of eccentric binaries with dynamic tidal distortions discovered with Kepler.

THOMPSON S.E., EVERETT M., MULLALLY F., BARCLAY T., HOWELL S.B., STILL M., ROWE J., CHRISTIANSEN J.L., KURTZ D.W., HAMBLETON K., TWICKEN J.D., IBRAHIM K.A. and CLARKE B.D.

Abstract (from CDS):

We have discovered a class of eccentric binary systems within the Kepler data archive that have dynamic tidal distortions and tidally induced pulsations. Each has a uniquely shaped light curve that is characterized by periodic brightening or variability at timescales of 4-20 days, frequently accompanied by shorter period oscillations. We can explain the dominant features of the entire class with orbitally varying tidal forces that occur in close, eccentric binary systems. The large variety of light curve shapes arises from viewing systems at different angles. This hypothesis is supported by spectroscopic radial velocity measurements for five systems, each showing evidence of being in an eccentric binary system. Prior to the discovery of these 17 new systems, only four stars, where KOI-54 is the best example, were known to have evidence of these dynamic tides and tidally induced oscillations. We perform preliminary fits to the light curves and radial velocity data, present the overall properties of this class, and discuss the work required to accurately model these systems.

Abstract Copyright:

Journal keyword(s): binaries: general - stars: evolution - stars: oscillations, including pulsations - stars: variables: general

Simbad objects: 22

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2012ApJ...753...86T and select 'bookmark this link' or equivalent in the popup menu