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High Spatial Resolution Hubble Space Telescope NICMOS Observations of Markarian 231

Low, F. J. and Schneider, G. and Neugebauer, G. (2004) High Spatial Resolution Hubble Space Telescope NICMOS Observations of Markarian 231. Publications of the Astronomical Society of the Pacific, 116 (823). pp. 797-800. ISSN 0004-6280. doi:10.1086/424473.

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Observations of Markarian 231 at 1.1 μm taken with NICMOS on the Hubble Space Telescope are described. The brightness of the object in the near‐infrared, and the inherent short‐term stability of the NICMOS optical and instrumental system, enables the application of special observational and analysis techniques that effectively increase high spatial resolution. By these means, we set an upper limit on the size of the core of the active galactic nucleus at 8 mas, corresponding to a radial projected distance of ~3 pc from the center of Markarian 231.

Item Type:Article
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URLURL TypeDescription Paper
Schneider, G.0000-0002-4511-5966
Additional Information:© 2004 Astronomical Society of the Pacific. Received 2004 June 4. Accepted 2004 June 15. Published 2004 August 23. We thank Paul S. Smith and Dean Hines for help with the manuscript and source selection. We also thank an anonymous referee for valuable suggestions. This work was supported in part by NASA grant NAG 5‐3042 and 10843 to the NICMOS Instrument Definition and Guaranteed Time Observing teams. This paper is based on observations with the NASA/ESA Hubble Space Telescope, operated by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5‐26555.
Funding AgencyGrant Number
NASANAG 5‐3042
NASANAS 5‐26555
Issue or Number:823
Record Number:CaltechAUTHORS:20170808-095925517
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Official Citation:F. J. Low et al 2004 PASP 116 797
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:79924
Deposited By: Ruth Sustaita
Deposited On:09 Aug 2017 19:28
Last Modified:15 Nov 2021 17:51

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