The orbital elements and physical properties of the eclipsing binary BD+36 degrees 3317, a probable member of delta Lyrae cluster

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F16%3A10331831" target="_blank" >RIV/00216208:11320/16:10331831 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985815:_____/16:00462097

Výsledek na webu

<a href="http://dx.doi.org/10.1051/0004-6361/201527211" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201527211</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201527211" target="_blank" >10.1051/0004-6361/201527211</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The orbital elements and physical properties of the eclipsing binary BD+36 degrees 3317, a probable member of delta Lyrae cluster

Popis výsledku v původním jazyce

Context. The fact that eclipsing binaries belong to a stellar group is useful, because the former can be used to estimate distance and additional properties of the latter, and vice versa. Aims. Our goal is to analyse new spectroscopic observations of BL+36 degrees 3317 along with the photometric observations from the literature and, for the first time, to derive all basic physical properties of this binary. We aim to find out whether the binary is indeed a member of the delta Lyr open cluster. Methods. The spectra were reduced using the IRAF program and the radial velocities were measured with the program SPEFO. The line spectra of both components were disentangled with the program KOREL and compared to a grid of synthetic spectra. The final combined radial-velocity and photometric solution was obtained with the program PHOEBE. Results. We obtained the following physical elements of BD+36 degrees 3317: M-1 = 2.24 +/- 0.07 M-circle dot, M-2 = 1.52 +/- 0.03 M-circle dot, R-1= 1.76 +/- 0.01 R-circle dot, R-2 = 1.46 +/- 0.01 R-circle dot, log L-1 = 1.52 +/- 0.08 L-circle dot log L-2 = 0.81 +/- 0.07 L-circle dot. We derived the effective temperatures T-eff,T-1 = 10 450 +/- 420 K, T-eff,T-2 = 7623 +/- 328 K. Both components are located close to zero age main sequence in the Hertzsprung-Russell (HR) diagram and their masses and radii are consistent with the predictions of stellar evolutionary models. Our results imply the average distance to the system (d) over bar = 330 +/- 29 pc. We re-investigated the membership of BD+36 degrees 3317 in the delta Lyr cluster and confirmed it. The distance to BD+36 degrees 3317, given above, therefore represents an accurate estimate of the true distance for delta Lyr cluster. Conclusions. The reality of the delta Lyr cluster and the cluster membership of BD+36 degrees 3317 have been reinforced.

Název v anglickém jazyce

The orbital elements and physical properties of the eclipsing binary BD+36 degrees 3317, a probable member of delta Lyrae cluster

Popis výsledku anglicky

Context. The fact that eclipsing binaries belong to a stellar group is useful, because the former can be used to estimate distance and additional properties of the latter, and vice versa. Aims. Our goal is to analyse new spectroscopic observations of BL+36 degrees 3317 along with the photometric observations from the literature and, for the first time, to derive all basic physical properties of this binary. We aim to find out whether the binary is indeed a member of the delta Lyr open cluster. Methods. The spectra were reduced using the IRAF program and the radial velocities were measured with the program SPEFO. The line spectra of both components were disentangled with the program KOREL and compared to a grid of synthetic spectra. The final combined radial-velocity and photometric solution was obtained with the program PHOEBE. Results. We obtained the following physical elements of BD+36 degrees 3317: M-1 = 2.24 +/- 0.07 M-circle dot, M-2 = 1.52 +/- 0.03 M-circle dot, R-1= 1.76 +/- 0.01 R-circle dot, R-2 = 1.46 +/- 0.01 R-circle dot, log L-1 = 1.52 +/- 0.08 L-circle dot log L-2 = 0.81 +/- 0.07 L-circle dot. We derived the effective temperatures T-eff,T-1 = 10 450 +/- 420 K, T-eff,T-2 = 7623 +/- 328 K. Both components are located close to zero age main sequence in the Hertzsprung-Russell (HR) diagram and their masses and radii are consistent with the predictions of stellar evolutionary models. Our results imply the average distance to the system (d) over bar = 330 +/- 29 pc. We re-investigated the membership of BD+36 degrees 3317 in the delta Lyr cluster and confirmed it. The distance to BD+36 degrees 3317, given above, therefore represents an accurate estimate of the true distance for delta Lyr cluster. Conclusions. The reality of the delta Lyr cluster and the cluster membership of BD+36 degrees 3317 have been reinforced.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BN - Astronomie a nebeská mechanika, astrofyzika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Astronomy and Astrophysics [online]

ISSN

1432-0746

e-ISSN

—

Svazek periodika

587

Číslo periodika v rámci svazku

březen

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

9

Strana od-do

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Kód UT WoS článku

000371589800138

EID výsledku v databázi Scopus

2-s2.0-84960153348