CCD Photometry, Light Curve Modeling and Period Analysis of the Overcontact Eclipsing Binary BN Ari

• Autorzy: Alton, K. B. , Nelson, R. H. , Boyd, D. R. S.
• Języki publikacji: EN

Abstrakty

EN

We present photometric and spectroscopic data of BN Ari, a totally eclipsing variable star. 15 new times-of-minimum have been determined. These along with other published eclipse timings were used to update the linear ephemeris and evaluate changes in orbital periodicity. Radial velocity data along with a definitive classification spectrum are reported for the first time. Simultaneous modeling of multicolor light curves and radial velocity data was accomplished using the Wilson-Devinney code with optimization by differential corrections. The weight of evidence from evaluating both the eclipse timing differences and light curve modeling indicates that BN Ari is most likely a triple system.

Słowa kluczowe

EN

binaries: eclipsing; binaries: close; stars: individual: BN Ari

• Czasopismo: Acta Astronomica
• Rocznik: 2018
• Tom: Vol. 68, No. 2
• Strony: 159--181
• Opis fizyczny: Bibliogr. 52 poz., rys., tab., wykr.

Twórcy

autor

Alton, K. B.

• UnderOak Observatory, Cedar Knolls, NJ 07927, USA,

autor

Nelson, R. H.

• Mountain Ash Observatory, 1393 Garvin Street, Prince George, BC, V2M 3Z1, Canada,
• Guest Investigator, Dominion Astrophysical Observatory, Herzberg Institute of Astrophysics, National Research Council of Canada

autor

Boyd, D. R. S.

• British Astronomical Association Variable Star Section West Challow Observatory, 5 Silver Lane,, Wantage OX12 9TX, United Kingdom,

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).

Identyfikatory

DOI

10.32023/0001-5237/68.2.5