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PHOTOMETRIC OBSERVATIONS of FOUR W UMA BINARIES

Year 2022, Volume 2, Issue 1, 35 - 42, 30.06.2022

Abstract

In this work, the light curves of NSVS2175434, V783 And, ASAS J020753+2034.1 and NR CAM W Uma type eclipsing binary star systems were obtained by using 0.5 meter ATA50 telescope in Atatürk University Astrophysics Research and Application Center (ATASAM). The orbital period variations of the systems were analyzed using the "timing" method. Only the O-C diagram of NR Cam was performed because the eclipse times of the other systems in the literature are not sufficient. When the O-C diagram of the NR Cam system is examined, no clear change has been observed for the time being. However, more observational data are needed to understand whether changes will occur in the future.

References

  • [1] Binnendijk, L., 1970. The orbital elements of W Ursae Majoris systems. Vistas in Astronomy, 12(1) 217−256
  • [2] Karttunen, H., Kröger, P., Oja, H., Poutanen, M., Donner, K. J., 2007. Fundamental Astronomy. Springer, 510s, New York
  • [3] Percy, J. R., 2007. Understanding Variable Stars. Cambridge University Press, 350s, Kanada
  • [4] Binnendijk, L., 1977. Synthetic light curves for contact binaries. Vistas in Astronomy, 21(4), 359−391
  • [5] Lee, J. W., Kim, S. L., Kim, C. H., Koch, R. H., Lee, C. U., Kim, H. I., Park, J. H., 2009. The sdB+M Eclipsing System HW Virginis and its Circumbinary Planets. The Astronomical Journal, 137(2), 3181−3190
  • [6] Gozdziewski, K., Nasiroglu, I., Slowikowska, A., Beuermann, K. et al., 2012. On the HU Aquarii planetary system hypothesis. Monthly Notices of the Royal Astronomical Society, 425(2), 2, 930−949.
  • [7] Gozdziewski, K., Slowikowska, A., Dimitrov, D., Krzeszowski, K. et al. 2015. The HU Aqr planetary system hypothesis revisited. Monthly Notices of the Royal Astronomical Society, Volume 448(2), 1118−1136
  • [8] Marsh, T.R., Parsons, S.G., Bours, M.C.P., Littlefair, S.P. et al., 2014. The planets around NN Serpentis: still there. Monthly Notices of the Royal Astronomical Society, 437(1), 475−488
  • [9] Nasiroglu, I., Gozdziewski, K., Slowikowska, A., Krzeszowski, K., Zejmo, M., Zola, S., Er, H. et al., 2017. Is There a Circumbinary Planet around NSVS 14256825?. The Astronomical Journal, 153(3), 11
  • [10] Er, H., Özdönmez, A. and Nasiroglu, I, 2021. New observations of the eclipsing binary system NY Vir and its candidate circumbinary planets. Monthly Notices of the Royal Astronomical Society, 507, 809-817
  • [11] Beuermann, K., Breitenstein, P., Debski, B., Diese, J. et al. 2012a. The quest for companions to post-common envelope binaries. II. NSVS 14256825 and HS0705+6700.Astronomy & Astrophysics, 540(A8), 5
  • [12] http://simbad.u-strasbg.fr/simbad/sim-fbasic
  • [13] Eastman, J., Siverd, R., Gaudi, B. S., 2010. Achieving Better Than 1 Minute Accuracy in the Heliocentric and Barycentric Julian Dates. Publications of the Astronomical Society of the Pacific, 122(894), 935
  • [14] Tavakkoli, F., Hasanzadeh, A., and Poro, A., 2015. The first light curve analysis of eclipsing binary NR Cam. New Astronomy, 37, 64-69
  • [15] Hilditch, R.W., 2001. An Introduction to Close Binary Stars. Cambridge University Press, 381s, ABD
  • [16] Kjurkchieva, D., P., et al., 2018. Observations and light curve solutions of three ultrashort-period W Uma binaries. New Astronomy, 62, 41-45
  • [17]https://www.aavso.org/vsx/index.php?view=detail.top&oid=286477
  • [18] Pojmanski, G., Pilecki, B., and Szczygiel, D., The All Sky Automated Survey. The Catalog of Variable Stars. V. Declinations 0 deg - 28 deg of the Northern Hemisphere. ArXiv, arXiv:astro-ph/0508017
  • [19] Strohmeier, W., 1958. kleineveröffentlichungen der Remeis-Sternwarte. Bamberg., No. 23.

DÖRT W UMA ÇİFT YILDIZ SİSTEMİNİN FOTOMETRİK GÖZLEMLERİ

Year 2022, Volume 2, Issue 1, 35 - 42, 30.06.2022

Abstract

Bu çalışmada NSVS2175434, V783 And, ASAS J020753+2034.1 ve NR CAM W Uma tipi örten çift yıldız sistemlerinin Atatürk Üniversitesi Astrofizik Araştırma ve Uygulama Merkezi (ATASAM) bünyesindeki 0.5 metrelik ATA50 teleskobu ile elde edilen örtülme ışık eğrileri sunuldu. Sistemlerin yörünge dönem değişimleri “zamanlama” yöntemi kullanılarak incelendi. NR Cam dışındaki sistemlerin literatürdeki minimum zamanları yeterli olmadığı için sadece NR Cam’ın O-C diyagramı oluşturuldu. NR Cam sistemine ait O-C diyagramı incelendiğinde net bir değişime şu an için rastlanılmadı. Ancak ilerleyen zamanlarda değişimin olup olmayacağını daha net görebilmek için daha fazla gözlemsel veriye ihtiyaç vardır.

References

  • [1] Binnendijk, L., 1970. The orbital elements of W Ursae Majoris systems. Vistas in Astronomy, 12(1) 217−256
  • [2] Karttunen, H., Kröger, P., Oja, H., Poutanen, M., Donner, K. J., 2007. Fundamental Astronomy. Springer, 510s, New York
  • [3] Percy, J. R., 2007. Understanding Variable Stars. Cambridge University Press, 350s, Kanada
  • [4] Binnendijk, L., 1977. Synthetic light curves for contact binaries. Vistas in Astronomy, 21(4), 359−391
  • [5] Lee, J. W., Kim, S. L., Kim, C. H., Koch, R. H., Lee, C. U., Kim, H. I., Park, J. H., 2009. The sdB+M Eclipsing System HW Virginis and its Circumbinary Planets. The Astronomical Journal, 137(2), 3181−3190
  • [6] Gozdziewski, K., Nasiroglu, I., Slowikowska, A., Beuermann, K. et al., 2012. On the HU Aquarii planetary system hypothesis. Monthly Notices of the Royal Astronomical Society, 425(2), 2, 930−949.
  • [7] Gozdziewski, K., Slowikowska, A., Dimitrov, D., Krzeszowski, K. et al. 2015. The HU Aqr planetary system hypothesis revisited. Monthly Notices of the Royal Astronomical Society, Volume 448(2), 1118−1136
  • [8] Marsh, T.R., Parsons, S.G., Bours, M.C.P., Littlefair, S.P. et al., 2014. The planets around NN Serpentis: still there. Monthly Notices of the Royal Astronomical Society, 437(1), 475−488
  • [9] Nasiroglu, I., Gozdziewski, K., Slowikowska, A., Krzeszowski, K., Zejmo, M., Zola, S., Er, H. et al., 2017. Is There a Circumbinary Planet around NSVS 14256825?. The Astronomical Journal, 153(3), 11
  • [10] Er, H., Özdönmez, A. and Nasiroglu, I, 2021. New observations of the eclipsing binary system NY Vir and its candidate circumbinary planets. Monthly Notices of the Royal Astronomical Society, 507, 809-817
  • [11] Beuermann, K., Breitenstein, P., Debski, B., Diese, J. et al. 2012a. The quest for companions to post-common envelope binaries. II. NSVS 14256825 and HS0705+6700.Astronomy & Astrophysics, 540(A8), 5
  • [12] http://simbad.u-strasbg.fr/simbad/sim-fbasic
  • [13] Eastman, J., Siverd, R., Gaudi, B. S., 2010. Achieving Better Than 1 Minute Accuracy in the Heliocentric and Barycentric Julian Dates. Publications of the Astronomical Society of the Pacific, 122(894), 935
  • [14] Tavakkoli, F., Hasanzadeh, A., and Poro, A., 2015. The first light curve analysis of eclipsing binary NR Cam. New Astronomy, 37, 64-69
  • [15] Hilditch, R.W., 2001. An Introduction to Close Binary Stars. Cambridge University Press, 381s, ABD
  • [16] Kjurkchieva, D., P., et al., 2018. Observations and light curve solutions of three ultrashort-period W Uma binaries. New Astronomy, 62, 41-45
  • [17]https://www.aavso.org/vsx/index.php?view=detail.top&oid=286477
  • [18] Pojmanski, G., Pilecki, B., and Szczygiel, D., The All Sky Automated Survey. The Catalog of Variable Stars. V. Declinations 0 deg - 28 deg of the Northern Hemisphere. ArXiv, arXiv:astro-ph/0508017
  • [19] Strohmeier, W., 1958. kleineveröffentlichungen der Remeis-Sternwarte. Bamberg., No. 23.

Details

Primary Language Turkish
Subjects Astronomy and Astrophysics
Journal Section Research Articles
Authors

Hüseyin ER> (Primary Author)
ATATÜRK ÜNİVERSİTESİ
0000-0003-1339-3045
Türkiye


Engin Zafer SÖNMEZ>
ATATÜRK ÜNİVERSİTESİ
0000-0002-6409-7978
Türkiye


Muhammet Emir KENGER>
ATATÜRK ÜNİVERSİTESİ
0000-0002-2847-8124
Türkiye


Necip KARAMAN>
ATATÜRK ÜNİVERSİTESİ
Türkiye


Emre AKKAYA>
ATATÜRK ÜNİVERSİTESİ
0000-0002-8048-8936
Türkiye


İmam Can ÖZKESEN>
ATATÜRK ÜNİVERSİTESİ
0000-0002-3454-5442
Türkiye


Ahmet POLATOĞLU>
ATATÜRK ÜNİVERSİTESİ
0000-0002-6562-8566
Türkiye

Thanks Bu çalışmada, Atatürk Üniversitesi Astrofizik Araştırma ve Uygulama Merkezi (ATASAM) tarafından işletilen ATA50 teleskobu ve arkasındaki CCD kamera ile elde edilen veriler kullanılmıştır. ATA50 teleskobu Atatürk Üniversitesi (P. No. BAP-2010/40), CCD kamera ise Erciyes Üniversitesi (P. No. FBA-11-3283) Bilimsel Araştırma Projeleri Koordinatörlüğü Birimi (BAP) tarafından finanse edilmiştir. Gerekli verilerin toplanması için gözlem zamanı tahsis eden ATASAM yönetimi ve personeline teşekkür ederiz. Bu makale, Atatürk Üniversitesi Fen Fakültesi Astronomi ve Uzay Bilimleri Bölümü lisans öğrencilerinin bitirme tezi kapsamında yapılmıştır. Bu kapsamda desteklerini esirgemeyen bölüm Öğretim Üyelerine teşekkür ederiz.
Publication Date June 30, 2022
Published in Issue Year 2022, Volume 2, Issue 1

Cite

Vancouver Er H. , Sönmez E. Z. , Kenger M. E. , Karaman N. , Akkaya E. , Özkesen İ. C. , Polatoğlu A. DÖRT W UMA ÇİFT YILDIZ SİSTEMİNİN FOTOMETRİK GÖZLEMLERİ. Journal of Anatolian Physics and Astronomy. 2022; 2(1): 35-42.