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Pregled bibliografske jedinice broj: 664838

The eccentric massive binary V380 Cyg: revised orbital elements and interpretation of the intrinsic variability of the primary component

Tkachenko, A.; Degroote, P.; Aerts, C.; Pavlovski, Krešimir; Southworth, J.; Papics, P. I.; Moravveji, E.; Kolbas, Vladimir; Tsymbal, V.; Debosscher, J.; Clemer, K.
The eccentric massive binary V380 Cyg: revised orbital elements and interpretation of the intrinsic variability of the primary component // Monthly notices of the Royal Astronomical Society, 438 (2014), 4; 3093-3110 doi:10.1093/mnras/stt2421 (međunarodna recenzija, članak, znanstveni)

CROSBI ID: 664838 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
The eccentric massive binary V380 Cyg: revised orbital elements and interpretation of the intrinsic variability of the primary component

Autori
Tkachenko, A. ; Degroote, P. ; Aerts, C. ; Pavlovski, Krešimir ; Southworth, J. ; Papics, P. I. ; Moravveji, E. ; Kolbas, Vladimir ; Tsymbal, V. ; Debosscher, J. ; Clemer, K.

Izvornik
Monthly notices of the Royal Astronomical Society (0035-8711) 438 (2014), 4; 3093-3110

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
binaries; eclipsing binaries; stars; fundamental parameters; oscillations

Sažetak
We present a detailed analysis and interpretation of the high-mass binary V380 Cyg, based on high-precision space photometry gathered with the Kepler space mission as well as high-resolution ground-based spectroscopy obtained with the hermes spectrograph attached to the 1.2m Mercator telescope. We derive a precise orbital solution and the full physical properties of the system, including dynamical component mass estimates of 11.43±0.19 and 7.00±0.14 M⊙ for the primary and secondary, respectively. Our frequency analysis reveals the rotation frequency of the primary in both the photometric and spectroscopic data and additional low-amplitude stochastic variability at low frequency in the space photometry with characteristics that are compatible with recent theoretical predictions for gravity-mode os-cillations excited either by the convective core or by sub-surface convective layers. Doppler Imaging analysis of the Silicon lines of the primary suggests the presence of two high-contrast stellar surface abundance spots which are located either at the same latitude or longitude. Comparison of the observed properties of the binary with present-day single-star evolutionary models shows that the latter are inadequate and lack a serious amount of near-core mixing.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA

Projekti:
119-0000000-3135 - Struktura i evolucija zvijezda (Pavlovski, Krešimir, MZOS ) ( CroRIS)

Ustanove:
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Krešimir Pavlovski (autor)

Avatar Url Vladimir Kolbas (autor)

Poveznice na cjeloviti tekst rada:

doi mnras.oxfordjournals.org

Citiraj ovu publikaciju:

Tkachenko, A.; Degroote, P.; Aerts, C.; Pavlovski, Krešimir; Southworth, J.; Papics, P. I.; Moravveji, E.; Kolbas, Vladimir; Tsymbal, V.; Debosscher, J.; Clemer, K.
The eccentric massive binary V380 Cyg: revised orbital elements and interpretation of the intrinsic variability of the primary component // Monthly notices of the Royal Astronomical Society, 438 (2014), 4; 3093-3110 doi:10.1093/mnras/stt2421 (međunarodna recenzija, članak, znanstveni)
Tkachenko, A., Degroote, P., Aerts, C., Pavlovski, K., Southworth, J., Papics, P., Moravveji, E., Kolbas, V., Tsymbal, V., Debosscher, J. & Clemer, K. (2014) The eccentric massive binary V380 Cyg: revised orbital elements and interpretation of the intrinsic variability of the primary component. Monthly notices of the Royal Astronomical Society, 438 (4), 3093-3110 doi:10.1093/mnras/stt2421.
@article{article, author = {Tkachenko, A. and Degroote, P. and Aerts, C. and Pavlovski, Kre\v{s}imir and Southworth, J. and Papics, P. I. and Moravveji, E. and Kolbas, Vladimir and Tsymbal, V. and Debosscher, J. and Clemer, K.}, year = {2014}, pages = {3093-3110}, DOI = {10.1093/mnras/stt2421}, keywords = {binaries, eclipsing binaries, stars, fundamental parameters, oscillations}, journal = {Monthly notices of the Royal Astronomical Society}, doi = {10.1093/mnras/stt2421}, volume = {438}, number = {4}, issn = {0035-8711}, title = {The eccentric massive binary V380 Cyg: revised orbital elements and interpretation of the intrinsic variability of the primary component}, keyword = {binaries, eclipsing binaries, stars, fundamental parameters, oscillations} }
@article{article, author = {Tkachenko, A. and Degroote, P. and Aerts, C. and Pavlovski, Kre\v{s}imir and Southworth, J. and Papics, P. I. and Moravveji, E. and Kolbas, Vladimir and Tsymbal, V. and Debosscher, J. and Clemer, K.}, year = {2014}, pages = {3093-3110}, DOI = {10.1093/mnras/stt2421}, keywords = {binaries, eclipsing binaries, stars, fundamental parameters, oscillations}, journal = {Monthly notices of the Royal Astronomical Society}, doi = {10.1093/mnras/stt2421}, volume = {438}, number = {4}, issn = {0035-8711}, title = {The eccentric massive binary V380 Cyg: revised orbital elements and interpretation of the intrinsic variability of the primary component}, keyword = {binaries, eclipsing binaries, stars, fundamental parameters, oscillations} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus

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