The first multi-color photometric study of the short-period contact eclipsing binary DE Lyn

Amanda Hashimoto; Liyun Zhang; Xianming L. Han; Hongpeng Lu; Daimei Wang

doi:10.1016/j.newast.2015.10.008

The first multi-color photometric study of the short-period contact eclipsing binary DE Lyn

Amanda Hashimoto, Liyun Zhang, Xianming L. Han, Hongpeng Lu, Daimei Wang

Butler University

Research output: Contribution to journal › Article › peer-review

Abstract

We observed the contact eclipsing binary of DE Lyn using SARA 0.9 m telescope at Kitt Peak National Observatory on February 9, 11, and 27, 2015. In this study, we obtained the first full phase coverage BVRI CCD light curves, analyzed the orbital period variation, and extracted the orbital parameters. We calculated the linear and quadratic ephemeris, and thereby found that DE Lyn has a decreasing orbital period rate of −5.1(±0.4)×−5.1(±0.4)× 10 −7 days/year. We assume this decreasing trend is the result of the more massive component (secondary) transferring mass to the less massive component (primary), and we obtained a mass transfer rate of dm/dt=7.06× 10 −7 M &odot; /yeardm/dt=7.06× 10−7 M&odot;/year. By using the updated Wilson & Devinney program, we found the orbital parameters of DE Lyn, which, in turn, enabled us to calculate the low degree of contact factor as f = 9.02( ± 0.01)%. In the future, its degree of contact will continue to increase and will evolve into an over-contact system.

Original language	American English
Journal	Scholarship and Professional Work - LAS
Volume	45
DOIs	https://doi.org/10.1016/j.newast.2015.10.008
State	Published - Jan 1 2016

Keywords

Binaries
Eclipsing stars
Individual DE Lyn
Period variation
Stars

Disciplines

Astrophysics and Astronomy
Stars, Interstellar Medium and the Galaxy

Access to Document

10.1016/j.newast.2015.10.008License: Unspecified

http://dx.doi.org/10.1016/j.newast.2015.10.008

Cite this

@article{32d0521e45334a1db5ea08bc9fb08822,

title = "The first multi-color photometric study of the short-period contact eclipsing binary DE Lyn",

abstract = " We observed the contact eclipsing binary of DE Lyn using SARA 0.9 m telescope at Kitt Peak National Observatory on February 9, 11, and 27, 2015. In this study, we obtained the first full phase coverage BVRI CCD light curves, analyzed the orbital period variation, and extracted the orbital parameters. We calculated the linear and quadratic ephemeris, and thereby found that DE Lyn has a decreasing orbital period rate of −5.1(±0.4)×−5.1(±0.4)× 10 −7 days/year. We assume this decreasing trend is the result of the more massive component (secondary) transferring mass to the less massive component (primary), and we obtained a mass transfer rate of dm/dt=7.06× 10 −7 M &odot; /yeardm/dt=7.06× 10−7 M&odot;/year. By using the updated Wilson & Devinney program, we found the orbital parameters of DE Lyn, which, in turn, enabled us to calculate the low degree of contact factor as f = 9.02( ± 0.01)%. In the future, its degree of contact will continue to increase and will evolve into an over-contact system.",

keywords = "Binaries, Eclipsing stars, Individual DE Lyn, Period variation, Stars",

author = "Amanda Hashimoto and Liyun Zhang and Han, {Xianming L.} and Hongpeng Lu and Daimei Wang",

year = "2016",

month = jan,

day = "1",

doi = "10.1016/j.newast.2015.10.008",

language = "American English",

volume = "45",

journal = "Scholarship and Professional Work - LAS",

}

TY - JOUR

T1 - The first multi-color photometric study of the short-period contact eclipsing binary DE Lyn

AU - Hashimoto, Amanda

AU - Zhang, Liyun

AU - Han, Xianming L.

AU - Lu, Hongpeng

AU - Wang, Daimei

PY - 2016/1/1

Y1 - 2016/1/1

N2 - We observed the contact eclipsing binary of DE Lyn using SARA 0.9 m telescope at Kitt Peak National Observatory on February 9, 11, and 27, 2015. In this study, we obtained the first full phase coverage BVRI CCD light curves, analyzed the orbital period variation, and extracted the orbital parameters. We calculated the linear and quadratic ephemeris, and thereby found that DE Lyn has a decreasing orbital period rate of −5.1(±0.4)×−5.1(±0.4)× 10 −7 days/year. We assume this decreasing trend is the result of the more massive component (secondary) transferring mass to the less massive component (primary), and we obtained a mass transfer rate of dm/dt=7.06× 10 −7 M &odot; /yeardm/dt=7.06× 10−7 M&odot;/year. By using the updated Wilson & Devinney program, we found the orbital parameters of DE Lyn, which, in turn, enabled us to calculate the low degree of contact factor as f = 9.02( ± 0.01)%. In the future, its degree of contact will continue to increase and will evolve into an over-contact system.

AB - We observed the contact eclipsing binary of DE Lyn using SARA 0.9 m telescope at Kitt Peak National Observatory on February 9, 11, and 27, 2015. In this study, we obtained the first full phase coverage BVRI CCD light curves, analyzed the orbital period variation, and extracted the orbital parameters. We calculated the linear and quadratic ephemeris, and thereby found that DE Lyn has a decreasing orbital period rate of −5.1(±0.4)×−5.1(±0.4)× 10 −7 days/year. We assume this decreasing trend is the result of the more massive component (secondary) transferring mass to the less massive component (primary), and we obtained a mass transfer rate of dm/dt=7.06× 10 −7 M &odot; /yeardm/dt=7.06× 10−7 M&odot;/year. By using the updated Wilson & Devinney program, we found the orbital parameters of DE Lyn, which, in turn, enabled us to calculate the low degree of contact factor as f = 9.02( ± 0.01)%. In the future, its degree of contact will continue to increase and will evolve into an over-contact system.

KW - Binaries

KW - Eclipsing stars

KW - Individual DE Lyn

KW - Period variation

KW - Stars

UR - https://digitalcommons.butler.edu/facsch_papers/963

UR - http://dx.doi.org/10.1016/j.newast.2015.10.008

U2 - 10.1016/j.newast.2015.10.008

DO - 10.1016/j.newast.2015.10.008

M3 - Article

VL - 45

JO - Scholarship and Professional Work - LAS

JF - Scholarship and Professional Work - LAS

ER -

The first multi-color photometric study of the short-period contact eclipsing binary DE Lyn

Abstract

Keywords

Disciplines

Access to Document

Other files and links

Cite this