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TUG-SRG Kaynakları Arasından Simbiyotik Keşfi

Year 2023, Volume: 4 Issue: 3 - Special Issue: Proceedings of the 22nd National Astronomy Congress, 353 - 358, 31.12.2023
https://doi.org/10.55064/tjaa.1200150

Abstract

SRGA J021303.5+604536, Ocak 2021’de TUG-KFU-IKI arasındaki protokole göre paylaşılan yeni ART-XC kaynaklarından biridir. 20210313–20221019 tarihleri arasında gözlendi. Toplamda yaklaşık 1.5 yıla yayılan 17 gece boyunca bu parlak (yaklaşık 11 kadir) kaynağın RTT150 ile 127 adet tayfı alınmıştır. Kaynağın tayf sürekliliği kırmızı olduğu gibi düz özelliği de var, hidrojenin Balmer çizgileri (şiddetli H-alfa, H-beta ve zayıf H-gama), Ca II üçlüsü (8500, 8544 ve 8664 A) ve O I (8446 A) çizgileri emisyondadır. Belirgin çizgilerden bazılarının akılarını (x10E−15 erg cm−2s−1) da hesapladık: 11.04 (H-beta), 232.02 (H-alfa) ve 141.05 (O I). Kaynağın farklı teleskoplarla fotometrik verisi de alınmıştır. Sistemin yörünge periyodu yaklaşık 16 gün bulunmuştur. Verilerin değerlendirilmesi ile kaynak ilk kez simbiyotik olarak tanımlanmıştır. Sistemin tayflarında TiO absorbsiyon çizgileri görülmediğinden beyaz cüce bileşenli aktif fazda bir simbiyotik olarak değerlendirilebilir.

Supporting Institution

TÜBİTAK Ulusal Gözlemevi ve İstanbul Üniversitesi

Project Number

TUG: 1805, 1824 ve 1927, İÜ BAP: FBA-2020-36956

Thanks

ADY60 teleskopu ile gözlem verisi sağladığı için de Adıyaman Üniversitesi’ne teşekkür ederiz.

References

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Discovery of Symbiotic from TUG-SRG Sources

Year 2023, Volume: 4 Issue: 3 - Special Issue: Proceedings of the 22nd National Astronomy Congress, 353 - 358, 31.12.2023
https://doi.org/10.55064/tjaa.1200150

Abstract

SRGA J021303.5+604536 is one of the new ART-XC sources shared according to the protocol between TUG-KFU-IKI in January 2021. It was observed between 20210313–20221019. 127 spectra of this bright (approximately 11 magnitude) source were taken with the RTT150 during 17 nights spanning approximately 1.5 years in total. The spectral continuum of the source is red as well as flat. The Balmer lines of hydrogen (strong H-alpha, H-beta and weak H-gamma), Ca II triplet (8500, 8544 and 8664 A) and O I (8446 A) are in emission. We also calculated the fluxes of some the prominent lines (x10E−15 erg cm−2s−1) as the following: 11.04 (H-beta), 232.02 (H-alpha) and 141.05 (O I). Photometric data of the source were also taken with different telescopes. The orbital period of the system was found to be about 16 days. The source was defined as symbiotic for the first time with the evaluation of the data. It can be considered as a symbiotic star in the active phase with a white dwarf component since TiO absorption lines are not seen in the spectra of the system.

Project Number

TUG: 1805, 1824 ve 1927, İÜ BAP: FBA-2020-36956

References

  • Kenyon, S. J., Symbiotic Phenomenon, Proceedings of IAU Colloq. 103 (1988) 11–22
  • Kenyon, S. J., Truran, J. W., ApJ 273 (1983) 280–288
  • Kenyon, S. J., Mikolajewski, J., Mikolajewski, M., Polidan, R. S., Slovak, M., AJ 106 (1993) 1573–1598
  • Livio, M., IAU Colloq. 103 (1988) 149–160
  • Mikolajewska, J., Symbiotic stars Probins Stellar Evolution, Corradi, R.L.H., Mikolajewska, R., Mahoney, T.J. (eds.), ASP Conference Series 303 (2003)
  • Mikolajewska, J., Baltic Astronomy 16 (2007) 1–9
  • Mikolajewska, J., Kenyon, S.J., AJ 112 (1996) 1659-1669
  • Munari, U., Whitelock, P. A., Gilmore, A. C., Blanco, C., Massone, G., Schmeer, P., AJ 104 (1992) 262–274
  • Mürset, U., Nussbaumer, H., Schmid, H.M., Vogel, M., AA 248 (1991) 458–474
  • Percy, J. R., Understanding Variable Stars, Cambridge University Press, ISBN-10 0-511-28662-7 (2007)
  • Shore, S. N. ve ark., AA 527 (2011) A98
  • Shore, S. N. ve ark., AA 540 (2012) A55
  • Skopal, A., ASP Conference Series 330 (2005) 463–464
  • Sokoloski, J.L., Bildsten, L., H., W.C.G., MNRAS 326 (2001) 553–577
  • Sokoloski, J.L., Bildsten, L., ApJ 517 (1999) 919–924
  • van den Heuvel, E.P.J., Bhattacharya, D., Nomoto, K., Rappaport, S.A., AA 262 (1992) 97–105
  • Warner, B., Cataclysmic Variable Stars, Cambridge University Press, ISBN 0-521-41231-5 (1995)
There are 17 citations in total.

Details

Primary Language Turkish
Subjects Astronomical Sciences (Other)
Journal Section Articles
Authors

Hasan H. Esenoğlu 0000-0003-3531-7510

Ebru Aktekin Çalışkan 0000-0002-5904-4580

Eda Sonbaş 0000-0002-6909-192X

Şölen Balman 0000-0001-6135-1144

Irek Hamitoglu 0000-0001-8662-3329

Fuat Korhan Yelkenci 0000-0003-2675-3564

Süleyman Fişek 0000-0002-3187-5286

Dicle Zengin Çamurdan 0000-0003-2596-1775

Project Number TUG: 1805, 1824 ve 1927, İÜ BAP: FBA-2020-36956
Early Pub Date December 17, 2023
Publication Date December 31, 2023
Submission Date November 6, 2022
Acceptance Date January 16, 2023
Published in Issue Year 2023 Volume: 4 Issue: 3 - Special Issue: Proceedings of the 22nd National Astronomy Congress

Cite

TJAA is a publication of Turkish Astronomical Society (TAD).