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Observing NGC 4151 with the Keck InterferometerObservations of the nucleus of NGC 4151 at 2.2 microns using the two 10-meter Keck telescopes as an interferometer show a marginally resolved source less than or equal to 0.1 pc in diameter. These observations are the first measurement of an extragalactic source with an optical/IR interferometer. These observations represent a ten-fold improvement in angular resolution when compared to previous near-infrared measurements of AGN and make it possible to test the subparsecscale, near-infrared emission models of NGC 4151.
Document ID
20070021668
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
hdl:2014/40008
Authors
Swain, Mark R. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 23, 2013
Publication Date
June 21, 2004
Subject Category
Astronomy
Meeting Information
Meeting: SPIE Astronomical Telescopes and Instrumentation2004
Location: Glasgow, Scotland
Country: United Kingdom
Start Date: June 21, 2004
Distribution Limits
Public
Copyright
Other
Keywords
interferometry
Active Galactic Nuclei (AGN)

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