Journal of Astronomy and Space Sciences

The Korean Space Science Society (한국우주과학회)
권호 표지
DOI QR코드

DOI QR Code

PHOTOMETRIC STUDY OF A W UMa TYPE CONTACT BINARY AH CNC

W UMa형 접촉쌍성 AH Cancri에 대한 측광학적 연구

  • Published : 2003.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

CCD photometric observations of a W UMa type contact binary AH Cnc were performed for ten nights from December 1998 to May 1999 using a PM512 CCD camera and BVI filters attached to the 61㎝ reflector at Sobaeksan Optical Astronomy Observatory. New BVI light curves were analyzed with contact Mode 3 of the Wilson-Devinney binary model. We obtained photometric solutions and Roche geometry of this binary system. Through the analysis of the (O-C) diagram with all times of minimum light published so far and including hour's secular variations of orbital period and the mass transfer rate were calculated.

1998년 12월부터 1999년 5월까지 총 10일간 W UMa형 접촉쌍성 AH Cnc를 소백산천문대의 61cm 망원경과 PM512 CCD 카메라, 그리고 BVI 필터를 사용하여 CCD 측광을 수행하였다. 새롭게 얻은 BVI 광도곡선을 Wilson-Devinney 쌍성모델의 Mode 3(접촉형)으로 분석해서 측광해를 구하고 Roche 모형을 얻었다. 지금까지 발표된 모든 극심시각들과 이번 관측자료를 사용하여 얻은 (O-C)도를 분석해서 영년주기 증가율와 질량이동률을 계산하였다.

Keywords

References

  1. 박사학위논문, 서울대학교 김승리
  2. BBSAG Bulletin v.117 BBSAG observer
  3. Vistas Astron. v.12 Binnendijk,L. https://doi.org/10.1016/0083-6656(70)90041-3
  4. IBVS Csizmadia,S.;Zhou,A.Y.;Konyves,V.;Varga,Z.;Sandor,Z.
  5. IBVS Efremov,Y.N.;Kholopov,P.N.;Kukarkin,B.V.;Sharof,A.S.
  6. MmRAS v.70 Eggen,O.J.
  7. ApJ v.469 Flower,P.J. https://doi.org/10.1086/177785
  8. AJ v.101 Gilliland,R.L.;Brown,T.M.;Duncan,D.K.;Suntzeff,N.B.;Lockwood,G.W.;Thompson,D.T.;Schild,R.E.;Jeffrey,W.A.;Penprase,B.E. https://doi.org/10.1086/115703
  9. An Atlas of O-C Diagram of Eclipsing Binary Stars Kreiner,J.M.;Kim,C.H.;Nha,I.S.
  10. Astron. Tsirk v.210 Kurochkin,N.E.
  11. Astron. Tsirk v.212 Kurochkin,N.E.
  12. IBVS Kurochkin,N.E.
  13. Perem. Zvezdy v.17 Kurochkin,N.E.
  14. Astron. Tsirk v.1076 Kurochkin,N.E.
  15. BAN v.12 Kwee,K.K.;van Woerden,H.
  16. A&AS v.58 Maceroni,C.;Milano.L.;Russo,G.
  17. A&A v.311 Maceroni,C.;van't Veer,F.
  18. In Third Coll. Var. Stars, K1, Veroffentlichungs der Remeis-Sternwarte v.Band Ⅵ no.40 Mammano,A.
  19. A User's Guide to Stellar Photometry with IRAF Massey,P.;Davis,L.E.
  20. IBVS Millis,R.L.
  21. ApJ v.245 Mochnacki,S.W. https://doi.org/10.1086/158841
  22. ARA&A v.9 Paczynski,B. https://doi.org/10.1146/annurev.aa.09.090171.001151
  23. A&A v.18 Popper,D.M. https://doi.org/10.1146/annurev.aa.18.090180.000555
  24. MNRAS v.170 Pringle,J.E. https://doi.org/10.1093/mnras/170.3.633
  25. Orbital motion no.Chapter 5 Roy,A.E.
  26. AAS v.198 Sandquist,E.L.;Shetrone,M.D.
  27. AJ v.125 Sandquist,E.L.;Shetrone,M.D. https://doi.org/10.1086/368139
  28. A&A v.382 van den Berg,M.;Stassun,K.G.;Verbunt,F.;Mathieu,R.D. https://doi.org/10.1051/0004-6361:20011521
  29. AJ v.106 Van Hamme,W. https://doi.org/10.1086/116788
  30. MNRAS v.186 Whelan,J.A.J.;Worden,S.P.;Rucinski,S.M.;Romanishin,W. https://doi.org/10.1093/mnras/186.4.729
  31. ApJ v.224 Wilson,R.E. https://doi.org/10.1086/156438
  32. ApJ v.356 Wilson,R.E. https://doi.org/10.1086/168867
  33. Documentation of Eclipsing Binary Computer Model Wilson,R.E.;K.C.Leung(ed.)
  34. Zhou,A.Y.

Cited by

  1. Close binary and other variable stars in the solar-age Galactic open cluster M 67 vol.503, pp.1, 2009, https://doi.org/10.1051/0004-6361/200911918