An XMM-Newton view of the X-ray flat radio-quiet quasar PG 1416-129
(abridged) The radio-quiet quasar PG1416-129 (z=0.129) exhibits atypical optical and X-ray properties. Between 1990 and 2000, in response to its optical continuum decrease, the ``classical'' broad component of Hbeta almost completely disappeared, with a factor of 10 decrease in the line fl...
| Главные авторы: | , , , , , |
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| Формат: | Journal article |
| Язык: | English |
| Опубликовано: |
2006
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