共 50 条
- [23] ROSAT OBSERVATIONS OF X-RAY-SELECTED ACTIVE GALACTIC NUCLEI ASTROPHYSICAL JOURNAL, 1994, 420 (01): : 136 - 142
- [24] MULTIWAVEBAND STUDIES OF X-RAY SELECTED ACTIVE GALACTIC NUCLEI PROCEEDINGS ASTRONOMICAL SOCIETY OF AUSTRALIA, 1987, 7 (02): : 212 - 215
- [26] WEAK SOFT-X-RAY EXCESSES NEED NOT RESULT FROM THE HIGH-FREQUENCY TAIL OF THE OPTICAL ULTRAVIOLET BUMP IN ACTIVE GALACTIC NUCLEI ASTROPHYSICAL JOURNAL, 1994, 431 (01): : L5 - L8
- [27] VARIABLE SOFT-X-RAY EXCESSES IN ACTIVE GALACTIC NUCLEI FROM NONTHERMAL ELECTRON-POSITRON PAIR CASCADES ASTROPHYSICAL JOURNAL, 1991, 376 (02): : 480 - 489
- [28] ON THE RELATIONSHIP BETWEEN OPTICALLY SELECTED AND X-RAY SELECTED ACTIVE GALACTIC NUCLEI ASTROPHYSICAL JOURNAL, 1986, 301 (01): : 124 - 131
- [29] Correlations of the IR luminosity and Eddington ratio with a hard X-ray-selected sample of active galactic nuclei ASTROPHYSICAL JOURNAL LETTERS, 2008, 684 (02): : L65 - L68
- [30] Properties of X-ray selected active galactic nuclei .4. The local optical luminosity function of broad-line active galactic nuclei ASTROPHYSICAL JOURNAL, 1996, 465 (02): : 650 - 658