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Pregled bibliografske jedinice broj: 439215

Properties and nature of Be stars. 26. Long-term and orbital changes of ζ Tauri

Ruždjak, Domagoj; Božić, Hrvoje; Harmanec, P.; Fiřt, R.; Chadima, P.; Bjorkman, K.; Gies, D. R.; Kaye, A. B.; Koubský, P.; McDavid, D. et al.
Properties and nature of Be stars. 26. Long-term and orbital changes of ζ Tauri // Astronomy & Astrophysics, 506 (2009), 3; 1319-1333 doi:10.1051/0004-6361/200810526 (međunarodna recenzija, članak, znanstveni)

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Naslov
Properties and nature of Be stars. 26. Long-term and orbital changes of ζ Tauri

Autori
Ruždjak, Domagoj ; Božić, Hrvoje ; Harmanec, P. ; Fiřt, R. ; Chadima, P. ; Bjorkman, K. ; Gies, D. R. ; Kaye, A. B. ; Koubský, P. ; McDavid, D. ; Richardson, N. ; Sudar, Davor ; Šlechta, M. ; Wolf, M. ; Yang, S.

Izvornik
Astronomy & Astrophysics (0004-6361) 506 (2009), 3; 1319-1333

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

Ključne riječi
stars: early-type; binaries: spectroscopic; stars: emission-line; Be; stars: individual: ζ Tauri

Sažetak
Context: One way to understand the still mysterious Be phenomenon is to study the time variations of particular Be stars with a long observational history. ζ Tau is one obvious candidate. Aims: Using our rich series of spectral and photometric observations and a critical compilation of available radial velocities, spectrophotometry of Hα, and UBV photometry, we characterize the pattern of time variations of ζ Tau over about a century. Our goal is to find the true timescales of its variability and confront them with the existing models related to various aspects of the Be phenomenon. Methods: Spectral reductions were carried out using the IRAF and SPEFO programs. The HEC22 program was used for both photometric reductions and transformations to UBV. Orbital solutions were derived with the latest publicly available version of the program FOTEL, period analyses employed both the PDM and Fourier techniques - programs HEC27 and PERIOD04. Results: We derived a new orbital ephemeris TRV max.= HJD (2447025.6±1.8) + (132^d.987 ±0^d.050) × E. The analysis of long-term spectral and light variations shows a clear correlation between the RV and V/R changes, and a very complex behaviour of the light changes. The character of the orbital light and V/R changes varies from season to season.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA

Projekti:
007-0000000-1364 - Fizikalni procesi u atmosferama Sunca i zvijezda

Ustanove:
Geodetski fakultet, Zagreb

Profili:

Avatar Url Hrvoje Božić (autor)

Avatar Url Domagoj Ruždjak (autor)

Avatar Url Davor Sudar (autor)

Poveznice na cjeloviti tekst rada:

doi www.aanda.org

Citiraj ovu publikaciju:

Ruždjak, Domagoj; Božić, Hrvoje; Harmanec, P.; Fiřt, R.; Chadima, P.; Bjorkman, K.; Gies, D. R.; Kaye, A. B.; Koubský, P.; McDavid, D. et al.
Properties and nature of Be stars. 26. Long-term and orbital changes of ζ Tauri // Astronomy & Astrophysics, 506 (2009), 3; 1319-1333 doi:10.1051/0004-6361/200810526 (međunarodna recenzija, članak, znanstveni)
Ruždjak, D., Božić, H., Harmanec, P., Fiřt, R., Chadima, P., Bjorkman, K., Gies, D., Kaye, A., Koubský, P. & McDavid, D. (2009) Properties and nature of Be stars. 26. Long-term and orbital changes of ζ Tauri. Astronomy & Astrophysics, 506 (3), 1319-1333 doi:10.1051/0004-6361/200810526.
@article{article, author = {Ru\v{z}djak, Domagoj and Bo\v{z}i\'{c}, Hrvoje and Harmanec, P. and Fi\v{r}t, R. and Chadima, P. and Bjorkman, K. and Gies, D. R. and Kaye, A. B. and Koubsk\'{y}, P. and McDavid, D. and Richardson, N. and Sudar, Davor and \v{S}lechta, M. and Wolf, M. and Yang, S.}, year = {2009}, pages = {1319-1333}, DOI = {10.1051/0004-6361/200810526}, keywords = {stars: early-type, binaries: spectroscopic, stars: emission-line, Be, stars: individual: ζ Tauri}, journal = {Astronomy and Astrophysics}, doi = {10.1051/0004-6361/200810526}, volume = {506}, number = {3}, issn = {0004-6361}, title = {Properties and nature of Be stars. 26. Long-term and orbital changes of ζ Tauri}, keyword = {stars: early-type, binaries: spectroscopic, stars: emission-line, Be, stars: individual: ζ Tauri} }
@article{article, author = {Ru\v{z}djak, Domagoj and Bo\v{z}i\'{c}, Hrvoje and Harmanec, P. and Fi\v{r}t, R. and Chadima, P. and Bjorkman, K. and Gies, D. R. and Kaye, A. B. and Koubsk\'{y}, P. and McDavid, D. and Richardson, N. and Sudar, Davor and \v{S}lechta, M. and Wolf, M. and Yang, S.}, year = {2009}, pages = {1319-1333}, DOI = {10.1051/0004-6361/200810526}, keywords = {stars: early-type, binaries: spectroscopic, stars: emission-line, Be, stars: individual: ζ Tauri}, journal = {Astronomy and Astrophysics}, doi = {10.1051/0004-6361/200810526}, volume = {506}, number = {3}, issn = {0004-6361}, title = {Properties and nature of Be stars. 26. Long-term and orbital changes of ζ Tauri}, keyword = {stars: early-type, binaries: spectroscopic, stars: emission-line, Be, stars: individual: ζ Tauri} }

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

Uključenost u ostale bibliografske baze podataka::


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  • INIST
  • Physics Abstracts

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