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Nuclear Luminosities and Radio Loudness of Seyfert Nuclei
Open accessAbstract
Historically, Seyfert nuclei have been considered to be radio-quiet active galactic nuclei (AGNs). We question this widely held assumption by showing that the distribution of the radio-to-optical luminosity ratio, R ≡ L ν (6 cm)/ L ν ( B ), when properly measured for the nuclear component, places the majority of type 1 Seyfert nuclei in the category of radio-loud AGNs, defined here as objects with R ≥ 10. This result is further strengthened by strong correlations found between radio power and optical continuum and emission-line luminosities, as has been established previously for more powerful AGNs. We also present a new calibration of the relation between optical continuum and Balmer emission-line luminosities valid in the regime of low-luminosity AGNs.
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Schlegel, D. J., Finkbeiner, D. P., & Davis, M. (1998) · The Astrophysical Journal · doi:10.1086/305772 · Cited by 15,126
Cited by
Radio Loudness of Active Galactic Nuclei: Observational Facts and Theoretical Implications
Sikora, M., Stawarz, Ł., & Lasota, J. (2007) · The Astrophysical Journal · doi:10.1086/511972 · Cited by 516
Bentz, M. C., Peterson, B. M., Pogge, R. W., Vestergaard, M., & Onken, C. A. (2006) · The Astrophysical Journal · doi:10.1086/503537 · Cited by 403
A New Sample of Low‐Mass Black Holes in Active Galaxies
Greene, J. E., & Ho, L. C. (2007) · The Astrophysical Journal · doi:10.1086/522082 · Cited by 385
Self-citationOn the Relationship between Radio Emission and Black Hole Mass in Galactic Nuclei
Ho, L. C. (2002) · The Astrophysical Journal · doi:10.1086/324399 · Cited by 346
Self-citationPeterson, B. M., Bentz, M. C., Desroches, L., Filippenko, A. V., Ho, L. C., Kaspi, S., Laor, A., Maoz, D., Moran, E. C., Pogge, R. W., et al. (2005) · The Astrophysical Journal · doi:10.1086/444494 · Cited by 329
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Metadata
- Authors
- Ho, L. C., & Peng, C. Y.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2001-07-10
- Volume
- 555
- Issue
- 2
- Pages
- 650-662
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W1978581195
- Cited by
- 227
- References
- 1
- FWCI
- 8.55
- Type
- journal article
- Language
- en
- Open access
- bronze
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