Abstract
view Abstract Citations (46) References (10) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Observations of a radio source in the nucleus of M81 with dimensions less than 1300 astronomical units Kellermann, K. I. ; Shaffer, D. B. ; Pauliny-Toth, I. I. K. ; Preuss, E. ; Witzel, A. Abstract Very-long-baseline interferometer observations of the nucleus of M81 show an unresolved radio source with linear dimensions not exceeding about 1300 AU. This is the smallest extragalactic radio source whose size has been directly measured. Its luminosity is intermediate between that of the compact radio source at the galactic center and the luminosity of compact sources found in the centers of extended radio galaxies and quasars. Publication: The Astrophysical Journal Pub Date: December 1976 DOI: 10.1086/182318 Bibcode: 1976ApJ...210L.121K Keywords: Extragalactic Radio Sources; Galactic Nuclei; Interferometry; Radiant Flux Density; Spiral Galaxies; Brightness Temperature; Galactic Structure; Spectrum Analysis; Astronomy full text sources ADS | data products SIMBAD (1) NED (1)
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