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Scientific paper - Original scientific paper
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, no. 4, 2015, pp. 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 and A. Tkachenko. "Spectroscopically resolving the Algol triple system." Monthly Notices of the Royal Astronomical Society 451, no. 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), pp. 4150-4161. doi: 10.1093/mnras/stv1261

Kolbas V, Pavlovski K, Southworth J, Lee CU, Lee DJ, Lee J, and sur.. Spectroscopically resolving the Algol triple system. Monthly Notices of the Royal Astronomical Society [Internet]. 2015 [cited 2025 April 05];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, no. 4, pp. 4150-4161, 2015. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:600695. [Accessed: 05 April 2025]

Metadata
Title (english)Spectroscopically resolving the Algol triple system
AuthorVladimir Kolbas
AuthorKrešimir Pavlovski
AuthorJ. Southworth
AuthorC.-U. Lee
AuthorD.-J. Lee
AuthorJ.W. Lee
AuthorS.-L. Kim
AuthorH.-I. Kim
AuthorB. Smalley
AuthorA. Tkachenko
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
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... More 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. Less
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleMonthly Notices of the Royal Astronomical Society
Numberingvol. 451, no. 4, pp. 4150-4161
p-ISSN0035-8711
e-ISSN1365-2966
DOIhttps://doi.org/10.1093/mnras/stv1261
URN:NBNurn:nbn:hr:217:600695
Publication2015
ProjectNumber: IP-2014-09-8656
Title (croatian): Zvijezde i prašina: struktura, sastav i interakcija
Acronym: STARDUST
Leader: Krešimir Pavlovski
Jurisdiction: Croatia
Funding stream: IP
Document URLhttps://academic.oup.com/mnras/article/451/4/4150/1121327
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public note© 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.
Created on2019-12-30 18:51:27
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