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Pregled bibliografske jedinice broj: 24337

Spectroscopy and photometry of the interacting binary CX Draconis - evidence for circumstellar matter


Koubsky, Pavel; Harmanec, Petr; Božić, Hrvoje; Percy, J.R.; Žižnovsky, Jozef; Huang, L.; Richards, M.T.; Hadrava, Petr; Šimon, V.
Spectroscopy and photometry of the interacting binary CX Draconis - evidence for circumstellar matter // Hvar Observatory Bulletin, 22 (1998), 1; 17-34 (podatak o recenziji nije dostupan, kongresno priopcenje, znanstveni)


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Naslov
Spectroscopy and photometry of the interacting binary CX Draconis - evidence for circumstellar matter

Autori
Koubsky, Pavel ; Harmanec, Petr ; Božić, Hrvoje ; Percy, J.R. ; Žižnovsky, Jozef ; Huang, L. ; Richards, M.T. ; Hadrava, Petr ; Šimon, V.

Izvornik
Hvar Observatory Bulletin (0351-2657) 22 (1998), 1; 17-34

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, kongresno priopcenje, znanstveni

Ključne riječi
emission-line stars; spectroscopic Be-binaries; CX Dra

Sažetak
An analysis of an extensive collection of spectroscopic and photometric observations of the interacting binary CX Dra led to the following main conclusions: 1. Both, spectroscopy and photometry indicate that the circumstellar environment changes in cycles of a few hundred days. The length of the cycles is variable. 2. The long-term H-alpha emission and light changes of CX Dra have a very similar character. This may mean a common cause which drives both spectroscopic and photometric long-term variations of the star. 3. The equivalent width of the H-alpha difference profiles and the light of CX Dra are modulated with the orbital period of 6d696. The corresponding phase diagrams indicate a great deal of scatter, but the modulation is quite conspicuous when long data strings are used. The pattern of the phase diagram constructed for H-alpha difference profiles suggests a permanent presence of the emission. 4. The radial velocities of the H-alpha emission peak follow a S-wave pattern. The resulting velocity (Doppler) map shows that the source of the single-peaked emission lies close to the L_1 point near the secondary star.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekti:
007004

Ustanove:
Geodetski fakultet, Zagreb

Profili:

Avatar Url Hrvoje Božić (autor)


Citiraj ovu publikaciju:

Koubsky, Pavel; Harmanec, Petr; Božić, Hrvoje; Percy, J.R.; Žižnovsky, Jozef; Huang, L.; Richards, M.T.; Hadrava, Petr; Šimon, V.
Spectroscopy and photometry of the interacting binary CX Draconis - evidence for circumstellar matter // Hvar Observatory Bulletin, 22 (1998), 1; 17-34 (podatak o recenziji nije dostupan, kongresno priopcenje, znanstveni)
Koubsky, P., Harmanec, P., Božić, H., Percy, J., Žižnovsky, J., Huang, L., Richards, M., Hadrava, P. & Šimon, V. (1998) Spectroscopy and photometry of the interacting binary CX Draconis - evidence for circumstellar matter. Hvar Observatory Bulletin, 22 (1), 17-34.
@article{article, year = {1998}, pages = {17-34}, keywords = {emission-line stars, spectroscopic Be-binaries, CX Dra}, journal = {Hvar Observatory Bulletin}, volume = {22}, number = {1}, issn = {0351-2657}, title = {Spectroscopy and photometry of the interacting binary CX Draconis - evidence for circumstellar matter}, keyword = {emission-line stars, spectroscopic Be-binaries, CX Dra} }
@article{article, year = {1998}, pages = {17-34}, keywords = {emission-line stars, spectroscopic Be-binaries, CX Dra}, journal = {Hvar Observatory Bulletin}, volume = {22}, number = {1}, issn = {0351-2657}, title = {Spectroscopy and photometry of the interacting binary CX Draconis - evidence for circumstellar matter}, keyword = {emission-line stars, spectroscopic Be-binaries, CX Dra} }

Uključenost u ostale bibliografske baze podataka::


  • Astronomy and Astrophysics Abstracts
  • Springer Verlag
  • Berlin
  • Referativnyj Zhurnal
  • Moscow
  • Astronomy and Astrophysics Abstracts
  • Referativnyj Zhurnal





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