Quasars Discovered by RTT-150 TFOSC Spectral Observations

Abstract

This study presents the first spectroscopic observations of four quasar candidates. We select the quasar candidates considering the high candidacy probabilities calculated from the SDSS and WISE photometric colors. We obtained the long-slit spectrum of each candidate with RTT-150 telescope and TFOSC spectrometer in two nights of January and February 2021. The reduced spectra shows both broad and narrow emission features confirming that all four of the candidates are members of quasar class. We present the calculation results of $z$, $d_L$, and $M_i(z=2)$ parameters for four quasars.

Keywords

• Galaxies: Active Galaxies
• Quasars
• Quasars Spectrum

RTT-150 TFOSC Tayfsal Gözlemleri ile Keşfedilen Kuazarlar

Abstract

Bu çalışma; dört kuazar adayının ilk spektroskopik gözlemlerini sunmaktadır. SDSS ve WISE fotometrik renklerinden hesaplanan yüksek adaylık olasılıklarını göz önünde bulundurarak kuazar adaylarını seçiyoruz. RTT150 teleskobu ve TFOSC tayfçekeri ile elde edilmiştir. Ocak ve Şubat 2021'de toplam 2 gece yapılan gözlemlerle ilk kez uzun-yarık tayfsal verileri elde edilmiştir. Bu verilerin indirgenmesi sonucunda elde ettiğimiz ön sonuçlar, keşfedilen dört kuazarın tayfında geniş ve dar salma çizgilerinin varlığı doğrulanmıştır. Bu dört kuazara ait $z$, $d_L$ ve $M_i(z=2)$ parametreleri hesaplanmıştır.

Keywords

• Galaxies: Active Galaxies
• Quasars
• Quasars Spectrum

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