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Using High Resolution Data to Investigate the Variability of GG Carinae System

Published online by Cambridge University Press:  22 February 2018

Maria Auxiliadora Machado ,
Francisco Xavier de Araújo ,
Dalton de Faria Lopes  and
Claudio Bastos Pereira
Maria Auxiliadora Machado
Affiliation:
Observatório Nacional/MCT, Rua General José Cristino 77, 20921-400, Rio de Janeiro, Brazil (dora@on.br)
Francisco Xavier de Araújo
Affiliation:
Observatório Nacional/MCT, Rua General José Cristino 77, 20921-400, Rio de Janeiro, Brazil (dora@on.br)
Dalton de Faria Lopes
Affiliation:
Observatório Nacional/MCT, Rua General José Cristino 77, 20921-400, Rio de Janeiro, Brazil (dora@on.br)
Claudio Bastos Pereira
Affiliation:
Observatório Nacional/MCT, Rua General José Cristino 77, 20921-400, Rio de Janeiro, Brazil (dora@on.br)

Extract

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GG Carinae is a peculiar emission line object classified as a B[e] star. Using high resolution data we confirm that GG Carinae is at same time a binary system and a variable star.

GG Carinae was classified by Lamers et al. (1998) as a B[e] star and also is pointed out as a binary system. So, any investigation to determine its parameters requires an detailed analysis in order to know and to separate the effects of each component. Gosset et al. (1984) used Fourrier Analysis in the data obtained from photoeletric photometry of both the standard UBV and Strongren system and calculated a period of 31D.02.

Type
The Contributed Papers
Information
International Astronomical Union Colloquium , Volume 194: Compact binaries in the galaxy and beyond , 2004 , pp. 239
Copyright
Copyright © Instituto de astronomia/revista mexicana de astronomίa y astrofίsica 2004

References

Gosset, E., Hutsemékers, D., Surdej, J., & Swings, J.P. 1985 A&A, 153, 71 Google Scholar
Kruythosch, W.E.,1930, Bull. Astron. Inst. Neth. 6, 11 Google Scholar
Lamers, H.J.G.L.M., Zickgraf, F.-J., de Winter, D., Houziaux, L., & Zorec, J. 1998 A&A, 340, 117 Google Scholar