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Date and Time of the Query: 2019-05-26 T09:30:26 PDT
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For refcode 1990AJ....100.1794T:
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Copyright by American Astronomical Society. Reproduced by permission
1990AJ....100.1794T THE SURFACE-BRIGHTNESS FLUCTUATION DISTANCE OF NGC 5128 JOHN L. TONRY AND PAUL L. SCHECHTER Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139 Received 24 July 1990; revised 21 August 1990 ABSTRACT We present observations of the surface-brightness fluctuations and photometry of globular clusters in the interacting galaxy NGC 5128 (Centaurus A). We find that the fluctuation apparent magnitudes are m^bar^_I_=26.08 and m^bar^_V_=28.12; the I band magnitude implies that NGC 5128 is 3.1 + 0.1 Mpc distant. This distance is in good agreement with those derived from the globular cluster luminosity function and supernovae, but is 20% smaller than that derived from the planetary nebula luminosity function.
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