CzeV404 - an Eclipsing Dwarf Nova in the Period Gap During its July 2014 Superoutburst

• Autorzy: Bąkowska K. , Olech A. , Pospieszyński R. , Martinelli F. , Marciniak A.
• Języki publikacji: EN

Abstrakty

EN

Results of the CCD observations of CzeV404 are presented. During the season of June-August 2014 we detected one outburst and one superoutburst of the star. Clear superhumps with the period of P_sh=0.10472(2) days were observed. The superhump period was decreasing with a high value of dP/dt=-2.43(8)×10^-4. From 17 eclipses we calculated the orbital period with the value of P_orb=0.0980203(6) days which confirms that CzeV404 belongs to period gap objects and it is the longest orbital period of an eclipsing SU UMa star. Based on superhump and orbital period determinations, the period excess ε=6.8%±0.02% and the mass ratio q≈0.32; of the system were obtained.

Słowa kluczowe

EN

stars: individual: CzeV404; binaries: close; novae; cataclysmic variables

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2014
• Tom: Vol. 64, No. 4
• Strony: 337--348
• Opis fizyczny: BIbliogr. 32 poz., rys., tab., wykr.

Twórcy

autor

Bąkowska K.

• Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, ul. Bartycka 18, 00-716 Warszawa, Poland

autor

Olech A.

• Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, ul. Bartycka 18, 00-716 Warszawa, Poland

autor

Pospieszyński R.

• Comets and Meteors Workshop, ul.Bartycka 18, 00-716 Warszawa, Poland

autor

Martinelli F.

• Lajatico Astronomical Centre, Loc i Fornelli No. 9, Orciatico Lajatico, Pisa, Italy

autor

Marciniak A.

• Astronomical Observatory Institute, Faculty of Physics, A. Mickiewicz University, ul. Słoneczna 36, 60-286 Poznań, Poland

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