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Spectroscopically resolving the Algol triple system
Monthly Notices of the Royal Astronomical Society, 451 (2015), 4; 4150-4161. https://doi.org/10.1093/mnras/stv1261
Kolbas, Vladimir; Pavlovski, Krešimir; Southworth, J.; Lee, C.-U.; Lee, D.-J.; Lee, J.W.; Kim, S.-L.; Kim, H.-I.; Smalley, B.; Tkachenko, A.

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Kolbas, V., Pavlovski, K., Southworth, J., Lee, C. U., Lee, D. J., Lee, J. ... Tkachenko, A. (2015). Spectroscopically resolving the Algol triple system. Monthly Notices of the Royal Astronomical Society, 451. (4), 4150-4161. doi: 10.1093/mnras/stv1261

Kolbas, Vladimir, et al. "Spectroscopically resolving the Algol triple system." Monthly Notices of the Royal Astronomical Society, vol. 451, br. 4, 2015, str. 4150-4161. https://doi.org/10.1093/mnras/stv1261

Kolbas, Vladimir, Krešimir Pavlovski, J. Southworth, C. U. Lee, D. J. Lee, J.W. Lee, S. L. Kim, H. I. Kim, B. Smalley i A. Tkachenko. "Spectroscopically resolving the Algol triple system." Monthly Notices of the Royal Astronomical Society 451, br. 4 (2015): 4150-4161. https://doi.org/10.1093/mnras/stv1261

Kolbas, V., et al. (2015) 'Spectroscopically resolving the Algol triple system', Monthly Notices of the Royal Astronomical Society, 451(4), str. 4150-4161. doi: 10.1093/mnras/stv1261

Kolbas V, Pavlovski K, Southworth J, Lee CU, Lee DJ, Lee J, i sur.. Spectroscopically resolving the Algol triple system. Monthly Notices of the Royal Astronomical Society [Internet]. 2015. [pristupljeno 24.12.2024.];451(4):4150-4161. doi: 10.1093/mnras/stv1261

V. Kolbas, et al., "Spectroscopically resolving the Algol triple system", Monthly Notices of the Royal Astronomical Society, vol. 451, br. 4, str. 4150-4161, 2015. [Online]. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:217:600695. [Citirano: 24.12.2024.]

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Naslov (engleski)Spectroscopically resolving the Algol triple system
AutorVladimir Kolbas
AutorKrešimir Pavlovski
AutorJ. Southworth
AutorC.-U. Lee
AutorD.-J. Lee
AutorJ.W. Lee
AutorS.-L. Kim
AutorH.-I. Kim
AutorB. Smalley
AutorA. Tkachenko
Autorova ustanovaSveučilište u Zagrebu
Prirodoslovno-matematički fakultet
(Fizički odsjek)
Znanstveno / umjetničko
područje, polje i grana		PRIRODNE ZNANOSTI
Fizika
Sažetak (engleski)
Algol (β Persei) is the prototypical semidetached eclipsing binary and a hierarchical triple system. From 2006 to 2010 we obtained 121 high-resolution and high signal-to-noise ratio échelle spectra of this object. Spectral disentangling yields the individual spectra of all three stars, and greatly improved elements both the inner and outer orbits. We find masses of M_A = 3.39 ± 0.06 M⊙, M_B = 0.770 ± 0.009 M⊙ and M_C = 1.58 ± 0.09 M⊙. The disentangled spectra also give the light ratios between the components in the B and V bands. Atmospheric parameters for the three stars are determined, including detailed elemental abundances for Algol A and Algol C. We find the following effective temperatures: T_A = 12 550 ± 120 K, T_B = 4900 ± 300 K and T_C = 7550 ± 250 K. The projected rotational velocities are v_A sin i_A = 50.8 ± 0.8  km/s, v_B sin i_B = 62 ± 2 km/s and v_C sin i_C = 12.4 ± 0.6 km/s. This is the first measurement of the rotational velocity for Algol B, and confirms that it is synchronous with the orbital motion. The abundance patterns of components A and C are identical to within the measurement errors, and are basically solar. They can be summarized as mean metal abundances: [M/H]_A = −0.03 ± 0.08 and [M/H]_C = 0.04 ± 0.09. A carbon deficiency is confirmed for Algol A, with tentative indications for a slight overabundance of nitrogen. The ratio of their abundances is (C/N)_A = 2.0 ± 0.4, half of the solar value of (C/N)⊙ = 4.0 ± 0.7. The new results derived in this study, including detailed abundances and metallicities, will enable tight constraints on theoretical evolutionary models for this complex system.
Ključne riječi (engleski)
Jezikengleski
Vrsta publikacijeZnanstveni rad - Izvorni znanstveni rad
Status objaveObjavljen
Vrsta recenzijeRecenziran - međunarodna recenzija
Verzija publikacijeObjavljena verzija rada (izdavačev PDF)
Naslov časopisaMonthly Notices of the Royal Astronomical Society
Brojčani podacivol. 451, br. 4, str. 4150-4161
p-ISSN0035-8711
e-ISSN1365-2966
DOIhttps://doi.org/10.1093/mnras/stv1261
URN:NBNurn:nbn:hr:217:600695
Datum objave publikacije2015
ProjektŠifra: IP-2014-09-8656
Naziv (hrvatski): Zvijezde i prašina: struktura, sastav i interakcija
Kratica: STARDUST
Voditelj: Krešimir Pavlovski
Pravna nadležnost: Hrvatska
Financijer: HRZZ
Linija financiranja: IP
URL dokumentahttps://academic.oup.com/mnras/article/451/4/4150/1121327
Vrsta resursaTekst
Prava pristupaOtvoreni pristup
Uvjeti korištenjaIkona licence Zaštićeno autorskim pravom.
Javna napomena© 2015 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. Received 11 November 2014; Revision received 21 May 2015; Accepted 03 June 2015; Published 30 June 2015.
Datum i vrijeme pohrane2019-12-30 18:51:27