Eight Miyun radio sources identified as BL Lac objects and quasars.
Abstract
To study special radio sources of the Miyun Survey, 18 flat-spectrum sources selected from 232 - 4850 MHz catalogs were followed up by optical identificaiton as the first part of a series of research programs. Having been identified with the 2.16 m telescope at Beijing Astronomical Observatory in May, 1998, 15 AGNs were found in which three BL Lac objects with no less than 8 of signal-to-noise ratios, MYC1557+566, MYC1615+412, MYC1902+556, and five quasars, MYC1415+385, MYC1615+365, MYC1722+527, MYC1825+345, MYC2207+357 are newly discovered.
- Publication:
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Acta Astrophysica Sinica
- Pub Date:
- 1998
- Bibcode:
- 1998AcApS..18..453Z
- Keywords:
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- Radio Sources: Identifications;
- Spectra: BL Lacertae Objects;
- Spectra: Quasars