DOI: https://doi.org/10.18524/1810-4215.2013.26.82314

HQ CAR IS A NEW W VIR TYPE STAR

S. N. Udovichenko, V. V. Kovtyukh, I. A. Egorova, S. I. Belik

Анотація


HQ Car is listed as an  δ Cep star (DCEP) in the GCVS. High-resolution spectra of HQ Car showed the presence of the Balmer and HeI 5876  Å emissions. The light curve shows steeper rise than decline, and there is evidence for the presence of a bump in the descending branch around the phase of 0.4. From considerations of the period, spectral type, presence of the bump, Helium and Balmer emissions we conclude that HQ Car belongs to the W Vir class of Type II Cepheids


Ключові слова


W Vir type Cepheids–stars; individual; HQCar

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Посилання


Berdnikov L.N.: 2008, VizieROn-line Data Catalog, UBVRIc-observations

Galazutdinov G.A.: 1992, Preprint SAO RAS, 92, 2

Gingold R.A.: 1985, Mem. Soc. Astr. Italy, 56, 169

Harris H.C.: 1985, AJ, 90, 756

L´ebre A.& Gillet D.: 1992, A&A, 255, 221

Luck R.E., Andrievsky S.M., Kovtyukh V.V., Gieren W., Graczyk D.: 2011, AnJ, 142, 51

Mayor M., Pepe F., Queloz D. et al.: 2003, Messenger, 114, 20

Pojmanski G.: 2002, Acta Astronomica, 52, 397

Madore B.F.: 1975, ApJSS, 29, 219

Samus N.N., Durlevich O.V., Kazarovets E.V., Kireeva N.N., Pastukhova E.N., Zharova A.V. et al.: 2011, General Catalogue of Variable Stars (GCVS database, Version 2011 Jan)

Schmidt E.G., Johnston D., Lee K.M., Langan S., Newman P.R., Snedden S.A.: 2004, AJ, 128, 2988

Yong D., Carney B.W., de Almeida M.L.T., Pohl B.L.: 2006, AnJ, 131, 2256




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