Near-Infrared Colors of Hard X-ray Selected Active Galactic Nuclei
نویسندگان
چکیده
Based on observations made with the Kitt Peak National Observatory 2.1m telescope, which is operated by National Optical Astronomy Observatories (NOAO) operated by AURA, Inc., under contract with the National Science Foundation and with the University of Hawaii 88 Inch telescope. Visiting Astronomer, University of Hawaii Observatory. Visiting Astronomer, Kitt Peak National Observatory, National Optical Astronomy Observatories (NOAO).
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