Steep and ultra-steep spectra RC sources
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We present the results of spectroscopy of 71 objects with steep and ultra-steep spectra (alpha<-0.9, S{prop.to}nu^alpha^) from the "Big Trio" (RATAN-600-VLA-BTA) project,...
本研究报道了“三大组合”（RATAN-600-甚大阵(VLA)-BTA）项目中71个陡谱与超陡谱天体的光谱观测结果，此类天体的谱指数α<-0.9，流量密度S与观测频率ν满足S∝ν^α，……
