略語大辞典 [Astro] 28 FSRQ flat-spectrum radio quasar 平坦スペクトル電波準星. 準星.flat-spectrum radio quasar; a QSO(quasi-stellar object); one of OVV(optically violent variable)s, which are those QSOs showing dramatic optical variability, a factor of 2 within a week, and a highly polarized optical continuum; ref. SS 丸善「略語大辞典」JLogosID : 11875377