The location and intrinsic luminosity of the hidden nucleus of NGC 1068 |
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| Institution: | 1. INAF - Osservatorio Astronomico di Roma, via di Frascati 33, Monte Porzio Catone 00078, Italy;2. SSDC–ASI, via del Politecnico, Roma 00133, Italy;3. INAF - Osservatorio Astronomico di Brera, via E. Bianchi 46, Merate, I-23807, Italy |
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| Abstract: | Two key problems on the ‘hidden’ nucleus of NGC 1068 are discussed, based on the archival Hubble Space Telescope images. First, we discuss the accurate location of the nucleus. We have found that the most probable location is only ∼ 0.″1 (∼ 7 pc) south of the UV brightest cloud. Second, we consider the intrinsic luminosity of the hidden nucleus. We show that its lower limit is as large as ∼ 2 × 1045 erg/sec, suggesting that the luminosity is almost at the Eddington limit. |
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