Revised Orbital Parameters of Beaming Eclipsing Binary System HV Cnc from Kepler Photometry

Gökay, G.; Özdemir, Sacit; Gürol, B.

doi:10.1016/j.newast.2019.101302

New Astronomy

2020

DOI: 10.1016/j.newast.2019.101302

|View full text |Cite

Revised Orbital Parameters of Beaming Eclipsing Binary System HV Cnc from Kepler Photometry

G. Gökay

Sacit Özdemir

B. Gürol

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2021

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

The K2 M67 Study: Precise Mass for a Turnoff Star in the Old Open Cluster M67

Sandquist¹,

Latham²,

Leiner³

et al. 2021

View full text Add to dashboard Cite

We present a study of the bright detached eclipsing main-sequence binary WOCS 11028 (Sanders 617) in the open cluster M67. Although the binary has only one eclipse per orbital cycle, we show that the masses of the stars can be derived very precisely thanks to a strong constraint on the orbital inclination: M A = 1.222 ± 0.006M ⊙ and M B = 0.909 ± 0.004M ⊙. We use a spectral energy distribution fitting method to derive characteristics of the component stars in lieu of the precise radii that would normally be derived from a doubly eclipsing binary. The deconvolution of the SEDs reveals that the brighter component of the binary is at the faint turnoff point for the cluster—a distinct evolutionary point that occurs after the convective core has been established and while the star is in the middle of its movement toward lower surface temperatures, before the so-called hook at the end of the main sequence. The measurements are in distinct disagreement with evolution models at solar metallicity: higher metal abundances are needed to reproduce the characteristics of WOCS 11028 A. We discuss the changes to model physics that are likely to be needed to address the discrepancies. The clearest conclusions are that diffusion is probably necessary to reconcile spectroscopic abundances of M67 stars with the need for higher metallicity models and that reduced strength convective overshooting is occurring for stars at the turnoff. At super-solar bulk metallicity, various indicators agree on a cluster age between about 3.5 and 4.0 Gyr.

show abstract

The K2 M67 Study: Precise Mass for a Turnoff Star in the Old Open Cluster M67

Sandquist¹,

Latham²,

Leiner³

et al. 2021

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Revised Orbital Parameters of Beaming Eclipsing Binary System HV Cnc from Kepler Photometry

Cited by 1 publication

References 50 publications

The K2 M67 Study: Precise Mass for a Turnoff Star in the Old Open Cluster M67

The K2 M67 Study: Precise Mass for a Turnoff Star in the Old Open Cluster M67

Contact Info

Product

Resources

About